Author: Withner C.L.  

Tags: biology  

ISBN: 0-88192-099-1

Year: 1988

Text
                    THE CATTLEYAS
AND THEIR RELATIVES
Volume I. The Cattleyas
A book in six parts
by
CARL L. WITHNER
TIMBER PRESS
Portland, Oregon


© 1988 by Timber Press, Inc. All rights reserved Reprinted 1995, 2002 ISBN 0-88192-099-1 Printed in Hong Kong through Colocraft Ltd. TIMBER PRESS, INC. The Haseltine Building 133 S.W. Second Avenue, Suite 450 Portland, Oregon 97204, U.S.A. Library of Congress Cataloging-in-Fublication Data Withner, Carl L. (Carl Leslie) The Cattleyas and their relatives / Carl L. Withner. p. cm. Bibliography: p. Includes index. Contents: v. 1. The Cattleyas. ISBN 0-88192-099-1 (v. 1) 1. Orchids. 2. Cattleyas. 3. Orchid culture. 4. Orchids—Latin America. 5. Botany—Latin America. I. Title. SB409.W793 1988 88-8560 635 9'3415—dcl9 CIP
Table of Contents Preface CHAPTER 1 General Characteristics of the Genus CHAPTER 2 The Problems of Classification CHAPTER 3 Introgression in Cattleyas CHAPTER 4 Cattleya Culture CHAPTER 5 Description of Species CHAPTER 6 Questionable or Doubtful Species Selected References for Additional Information Plant Name Index Index of Persons General Index 1-4 5-7 9-23 25-28 29-34 35-131 133-134 135-136 137-141 142-143 144-147
Preface For many years I had thought about writing a book on the cattleyas and including information about their close relatives. I first had the idea years ago when Gordon Dillon asked me to write a series of articles on various genera for the American Orchid Society Bulletin. I started, but the demands of graduate school constantly interfered. My advisors did not want me to work on orchids: they would take too much time, and anyway, what was there to do! I completed four articles, including one on cattleyas, however, and did continue a number of experiments with cattleya seedlings in vitro, and green-podding, that I had started before the war and my service in the Army. My interest in the Cattleya Alliance has always been intense and I continue with it today. After I began teaching at Brooklyn College in 1948 and, in addition, was associated with the Orchid Collection of the Brooklyn Botanic Garden, my interest in species of all kinds increased. But I always came back to the cattleyas and their relatives as special favorites. Through the early days of the American Orchid Society judgings and shows in New York I came to know an unusual and highly talented orchidophile, Helen Adams. She had a fine collection of all the early color plate books, had removed the Cattleya and Laelia plates, mostly from broken bindings, and filed them alphabetically by species, preserving the associated texts so that eventually the books could be rebound. Since she was much interested in hybridizing and in orchid history, Helen also sought out accounts about all the old natural hybrids in the literature, as well as stories about various color varieties of the species reproduced in the plates, so that they could be properly identified with more modern terminology. One aspect of her work culminated in the first judging handbook of the American Orchid Society; it also developed into a series of lessons to teach judges more about judging of cattleyas. The research also led to an association with Prof. Edgar Anderson of the Missouri Botanical Garden, and the article, Conspectus of Hybridization, which they published together in 1958 in Evolution.
The Cattleyas I I was much interested in introgressive hybridization, a concept originally developed by Anderson, and as a result of Helen's interest we studied intensively all of the Cattleya species and their variants, depending heavily upon her wonderful file of pictures. Using this material, we gave a paper in London at the Third World Orchid Conference emphasizing introgression and how it could help account for interrelationships among the cattleyas and their relatives. Most of that data on the individual species is still not published, but the work certainly reinforced my long interest and knowledge of the group. I also made periodic visits, in those days and over the years to Lager and Hurrell in Summit, N.J. and eagerly anticipated every one. John Lager was an early A.O.S. judge, grew many species; had a fascinating range with the first large hillside greenhouse I'd ever seen; and knew all the early hybrid growers and their histories. His father had originally been a collector for Sander until he opened his own business in New Jersey. Each visit meant an exciting review of the greenhouses; intense discussions and ideas about hybridizing; hashing over problems with shows and judging various hybrids; and fascinating introduction to newly imported species. John often had interesting stories to tell, and we all were so pleased when Valentino Sarra photographed him for the Calvert "Man of Distinction" series of advertisements. He was truly such a person, and he certainly increased my orchid "know-how" by leaps and bounds as he enthusiastically shared his knowledge. In 1962 I was awarded a Guggenheim Fellowship to travel and study cattleyas in South America which was, theoretically, to result in a book. Much material and information was acquired during my travels, but no book was then forthcoming, only some notes in Orchidata and two travel articles in the Florida Orchidist. Eventually I was called upon to write a series on the cattleyas for the new Italian Orchid Society journal, UOrchidea, which were translated from English by my good friend Mario Dalla Rosa. They were ultimately collated and published as a book, Le Cattleye, for the members of that Society. After speaking with Richard Abel, the spark at Timber Press in Portland, Oregon, who is prejudiced toward authoritative and encyclopedic treatments of various plant groups, the present book was conceived. Not only would the cattleyas be treated to combine botanical and horticultural examination, but their relatives should likewise be included, and I was to be the lucky author. This seemed a monumental task, and it is; but when broken down into five or six component parts, the individual sections do not seem such an awesome undertaking. By starting with the cattleyas, about which I had already written for other purposes, and about which I know the most, the work has gone reasonably well. My real problems lie ahead as I try to arrange species still debated by taxonomists, and with which I have not always had as much direct experience, into a meaningful whole. To wait until the work is completed would put off the publishing many years, and produce a book of great expense that most people could not afford or would not buy. We hope by publishing it in sections as completed, that the parts will all be individually affordable, and the reader may acquire the parts which interest him or her if the complete series is not wanted.
Preface As the book is envisioned at present the parts will be as follows: Volume I Cattleya Volume II Laelia Volume III Schomburgkia, monotypic and small genera and Caribbean Encyclia and Psychilis Volume IV Central American and Mexican Encyclia Volume V Encyclia of Brazil and the Guianas Volume VI Andean Encyclia and index. Encyclia remains a problem for me, and for this book I intend to use that genus only in the original narrow sense of Hooker (1828) based on Encyclia patens. More familiar species today would be Encyclia tampensis, E. alata, E. cordigera, etc. To cover all the species of Encyclia as that concept is currently used in a broader sense (sensu latu) would be impossible for the scope of this book. In addition to the descriptions of the species, it is planned that occasional introductory chapters in each part will cast further light on the complex of species being described. I intend to deal, when material is available, with evolutionary relationships, comparative anatomy, flower color and pigmentation, geography and distributions affected by geologic history, vegetative structures or fragrances and pollinators in addition to cultural information that will help us grow better orchids and at the same time put correct labels on our plants. I think, at this point, of Holtum's remark that you can't understand a genus until you understand all the species in it—and there is still so much to know about the cattleyas and their relatives! Much of orchid history and not a little of the personalities of some of the individuals is implicit in all of the species and varieties involved. I have tried to include vignettes whenever possible to make for more interesting reading and to embellish the bare bones of plant sizes and flower colors. There is the perennial problem of how to write or print the various plant names, and in this connection I have made certain decisions. For species and natural hybrids from the wild I have used italics, and lower case letter for the species or hybrid epithet even when a proper name is involved. I know that not capitalizing proper names will win me no accolades from some sources, but it is an acceptable option under the International Rules of Nomenclature. It does prevent confusion with older Latinized grex names that must be written with a capital letter whether they are proper nouns or not. Further, I have not used an "X" designating hybrids as, I believe, the text will make clear the nature of the plants involved. The Latinizing of proper names also causes some difficulties, and under such species as Cattleya schroderae, trianaei and walkeriana some of the difficulties are discussed. The greatest problems arise with varietal epithets. These designations are almost without exception really cultivar or clonal epithets, as they were and are individual plants selected in cultivation from various introductions. They are not varieties in the botanical sense of being some sort of subspecies population. Today we would capitalize such varietal names and place them in single quotes to indicate clearly that they apply strictly to a single clone. But last century these plants were described as though they were botanical varieties. And therein lies the problem! To confuse the issue
The Cattleyas I even further, more than one clone of a given "variety" has in some cases been discovered, but such plants often have not been given separate cultivar names or fourth epithets to distinguish them. However, some did receive such epithets, for instance, Cattleya mossiae var. reineckiana 'Exquisita', to distinguish this reineckiana from others. In such instances reineckiana is used more as a varietal epithet, even though it is not a botanical variety but a particular color pattern. Accordingly, it is no longer a clonal designation as such. By the same token the "alba" term presents a whole spectrum of problems, many albas of certain species having been found, though the name was originally applied as a clonal designation. Well, I have accepted some varietal names as actual cultivar names, while others have been used as varietal names when more than one such form has received the name. Actually, since few of the older "varieties" have remained in cultivation down to the present, this discussion becomes a bit academic, but names do provide specific information when they are written certain ways. I have attempted to use names as accurately as possible and still stay within the modern rules of nomenclature. There will always be those who do not agree with what I have done, but I will say now that the text has been my full responsibility. My great thanks and appreciation for very patient and detailed word processing of the various drafts of the manuscript go to Annette Guenard; and to Prof. Thomas Horn of Western Washington University goes my appreciation for his expertise with the details of Latin grammar. Dr. Jack Fowlie and Red and Trudi Marsh have been generous in lending me slides of species "hard-to-find" in illustrations or in flower in the greenhouse. I also have slides from Chris Ellis, Hugh Henry, Ken Girard, Irene Kothuber and Paul Gripp. Dr. Lesie Garay and Dr. Ruben Sauleda have helped me answer many technical questions; and I have had the facilities at Harvard University, Kew, the Reichenbach and other herbaria generously made available to me. And finally, I would like to thank a host of orchid growers who have talked into the "small " hours time and again, encouraging me to go ahead with this project. Carl L. Withner 2015 Alabama Street Bellingham, WA 98226 June 30, 1987
CHAPTER 1 General Characteristics of the Genus In 1824 Dr. John Lindley, the famous orchidologist, dedicated the genus Cattleya to William Cattley of Barnet, England. Cattley was a liberal patron of horticulture; an enthusiastic collector of rare plants; and had assembled one of the first collections of orchids in England. His collection formed the nucleus of the Royal Exotic Nursery which, in turn, became James Veitch and Sons, a company that contributed immeasurably to orchid history and modern orchid cultivation. Cattleya labiata had been found in the Organ Mountains, about 60 miles (100 km.) north of Rio de Janeiro, in 1818, and was brought in to cultivation by William S wainson. As other species were discovered, the cattleyas became the mainstay of orchid cultivation. Their flamboyant appearance and exotic beauty contributed to the popularity of the orchid family as plants of no other genus have done. Now, more than 150 years later, the cattleya is still Queen of the orchid world. The cattleyas are plants with strong, woody, somewhat creeping rhizomes that send out each growing season a flush or two of roots and a new stem (now to be called a ramicaul) which forms the pseudobulb. The pseudobulb may be spindle-shaped, club-like, or long and narrow and scarcely thickened, and is surmounted by one, two or more leaves. The inflorescence is terminal, though in one or two species the flowers are produced on a separate growth lacking leaves. The flower buds may be enclosed in one or two large sheaths that protect and support the flowers as they develop. Lower leaves are modified into green sheaths which eventually dry, become white and membranous and subsequently peel away Cattleya as a genus was distinguished by Lindley because of the large sized flowers that separate it from Epidendrum and the lip of the flower which has not fused to the column, a marked characteristic of true epidendrums. Cattleya shares four pollinia with Epidendrum, a characteristic which was later used to distinguish between these two genera and Laelia, and other related genera, with eight pollinia.
The Cattleyas I Cattleya sepals and lateral petals are generally of the same color while the lip petal is much elaborated. The lip varies from having no lateral lobes, taking a circular or oval form, to having distinct lateral lobes producing a tripartite shape. Veining patterns, superimposed upon distinct color patterns, which help distinguish one species from another, usually extend from the base of the lip to spread over the lateral lobes or the expanded midlobe. The flowers are not callused as in the flowers of many other orchid genera. The veinings and "eye" patterns on the midlobes are apparently sufficient for guiding insect pollinators in nature, though most of the flowers also produce a sweet fragrance, especially in warm sunlight. The lip lies parallel to the column, with its lateral lobes or enfolding edges enclosing the column to produce a tube leading past the anther and stigma to a nectary where lip and column join. A stylar canal which can be observed if the column is hemisected, carries the pollen tubes from the stigma to the ovules in the ovary. A small flap of tissue, the rostellum, is found between the sticky stigma surface and the anther, obstructing contact between pollen and the stigma, and thereby preventing self pollination under ordinary conditions. In Cattleya aurantxaca, particularly in certain cleistogamous clones, the rostellum may dry up, leading to premature pollination, even though the flower bud has never opened. The four pollinia, each of which is possessed of a short tail, the caudicle, are located under the cells of the anther cap. When a bee forces and penetrates the tubular space beneath the column to reach and sample the nectar, some of the stigmatic fluid rubs onto the insect's back. Then, as the insect retreats from the nectary, the pollinia are lifted off, attached to its back by the caudicles which stick in the fluid. The pollinia are thus in an appropriate position to pollinate the next flower visited. A cattleya seed pod may require 9-10 months, or even longer, to ripen and can produce three million seeds if fully fertile. As we know from green-podding of seeds, the embryos are already present three or four months after pollination. Even after five months there is little further change in seed development. They await the ripening process itself and the subsequent splitting of the pod. There are at least three classes of pigments present in cattleya flowers, either collectively or separately. The typical blue-mauve-pink-lavender- purple-magenta-red colors are water soluble vacuolar pigments called anthocyanins (flavonoids). They are usually present in the sepals and petals in combinations of two or three types together; though, in lips, with greater intensity of color, there are usually one or two additional anthocyanins. These substances may be co-pigmented with light yellow flavonoids which influence the final color, as can the pH of the vacuolar contents. The second category of pigments includes the yellows and oranges which are carotenoid derivatives. They are fat soluble substances and may form either in the chromoplastids or in the chloroplasts. Lastly, the greens of chorophyll are also present in the chloroplasts. Bronze and brown colorations result from anthocyanins and carotenoids combined with the green from chlorophyll. Clear, pale greens result from carotenoids plus chlorophyll while darker jade-like greens derive from chlorophyll alone. Muddy colors are produced when some anthocyanins are present in surface layers over the greens or yellows in internal cells of sepals and petals.
General Characteristics Pigmentation patterns are very complex, and little is truly understood about their inheritance in hybrids. The investigator must first account for the presence or absence of each type of pigment and then their possible combinations. Then he must determine whether they are located only in the flower parts or also in the vegetative parts of the plants. In addition, the complications of intensifier or inhibitor genes and whether or not the pigment is present only in the epidermis or distributed throughout the tissues must be determined. Individual plants of most cattleya species have been discovered which naturally lack one or more of the normally dominant color genes. These genetic variations are the grower's good fortune for they give us the alba or semialba forms which lack pigments, or the albescent or xanthotic types with alternate colorations. More unusual color variations from chance gene changes can produce the blue or mauve coerulea types. Currently, the splash petaled and picoteed peloric varieties with the lip pigmentation pattern duplicated on the lateral petals are popular. Such peloric variations are more common in some species than in others, and some have been found more than once in the same species. All these different combinations are appreciated and cherished for their genetic qualities that have enabled us to produce hybrids of the most desired colors. About the only unsuccessful patterns were the "double flowered" cattleya crosses produced by Reychler in the 1920s. Such flowers may have had as many as 10-12 petals and no lip at all! Red colorations are highly prized today. They usually result from the yellow and orange carotenoids combined with the redder anthocyanins. But breeding true red colors without magenta tints is still difficult and fundamentally seems a matter of luck in any given cross. The presence of red pigments in leaves and roots may parallel the floral pigments or be completely different compounds with no relation to flower color. Leaf pigments, therefore, may signal darker colored flowers, or they may not; but certainly such pigments will not usually be present in alba flowered clones.
CHAPTER 2 The Problems of Classification Cattleya is one genus of orchids, among others of horticultural interest, with which this book is concerned, in the so called Cattleya Alliance of the subtribe Epidendrinae. The closest relatives are in the genera Laelia and Schomburgkia. Other closely related genera are Rhyncholaelia, Brassavola, Encyclia, Sophronitis and Caularthron. There are a number of smaller, sometimes monotypic genera, such as Constantia, Neocogniauxia, Sophronitella, Alamania, Pseudolaelia, Broughtonia, Quisqueya, Laeliopsis or Cattleyopsis, etc., all of which will be discussed in turn. A listing of the genera according to their geographic distributions is to be found in Table I. The common diploid chromosome number of the alliance, for those species already determined, is generally 40. This common chromosome number makes many intergeneric hybrid combinations possible. The wealth of hybrids already produced, both in nature and in cultivation, further attests to the genetic intercompatibility of the plants from these genera. The natural barriers which generally separate species in the wild are accordingly geographic, temporal or mechanical, not genetic. We now have, in cultivation, grex populations in the Cattleya alliance derived from species of as many as five genera. Natural polyploidy is not uncommon in the alliance nor is variation in color patterns, and these qualities have, of course, all additionally been used to produce many of the superior clones of species or hybrids we know today. Table II lists the various intergeneric combinations currently registered (April, 1988) with the Royal Horticultural Society. Classification of the cattleyas has been a matter of much debate over the years, with certain species having been either moved into or out of the genus according to the orchidologist doing the classifying. By the same token some varieties have been given species status by some authors and not by others. The genus Cattleya has conventionally been subdivided into monofoliate and bifoliate subgroups which have in turn been subdivided
10 The Cattleyas I again into smaller subtaxa. Some authors (Pabst and Dungs) prefer "alliance" as a way of designating these subgeneric groupings of close relatives, while others follow a more formal and conventional system employing sections or series. Rolfe's system (1895), really the first, classified the species into "groups". As in many orchid or other subgenera, some groups of species are obviously more closely related than others, while other species may stand alone without any closely related forms. Botanical classification systems theoretically endeavor to indicate these group relationships within the genus as well as the gaps between those species which stand at a distance from others. To varying degrees, they are successful. Since most writings on Cattleya have been concerned with Brazilian cattleyas, to the exclusion of other South American or the Central American species, the classification schemes developed are usually incomplete for the genus as a whole. Such classifications can be found in the more recent books by Fowlie or Pabst and Dungs, and the older account by Cogniaux in Martius. Their classification systems are summarized in Table III. The third edition of Schlecter's Die Orchideen by Brieger, Maatsch and Senghas provides a complete system of Cattleya classification and is presented here in Table IV together with the earlier system of Rolfe. All these classification systems are artificial though practical, and should be approached accordingly. The various subgroupings do show the close morphological relationships based on floral anatomy and vegetative habits (both useful distinctions in Cattleya classification schemes) shared by the grouped species. But, none of the systems are arranged specifically to account for the evolutionary development nor phylogeny of the species involved—natural systems. In fact, this may never be possible to more than a hypothetical degree, such as Mrs. Adams and I discussed in our paper on introgression in 1960. Rather, the taxa are conveniently subdivided into groups, species, and then into varieties or forms, as each author sees fit. Botanical problems immediately arise in deciding between species and varietal status for any given plant or group of plants. As a consequence, the subjective judgments by the author of any classification scheme become apparent. The concept of a species is, by definition in modern biology, an interbreeding population of organisms in the wild which can reproduce its kind in perpetuity. Usually, also, members of a species occupy a distinct geographic area, and live and reproduce in a specific habitat with well- defined ecological parameters. The species concept is thus a fairly theoretical or abstract idea about a group of plants we can more or less recognize. In classification systems we give that group a name and place it most logically in a genus with other related species. At the same time, we realize that a species consists of living, dynamic, changing entities which mutate, interbreed, segregate, sometimes become polyploid, overlap with one another in qualities and characteristics and survive or die in adapting to various environmental changes. Biologists also agree that present species have developed from those that existed in the past. If we could only figure out how all these lineages were related, a near perfect classification scheme for any genus or family could be proposed. Based on the comparative anatomy of the flowers and plants, as well as their physiological and
The Problems of Classification 11 genetic characteristics, we can observe or deduce some of the necessary information. To that degree, then, our present classification schemes can reflect what went on in nature. In the Orchidaceae the conventional species concept is often difficult to understand and apply. A given species population ordinarily is kept separate from other species populations by genetic incompatibilities, different flowering seasons, geographical isolation, or the mechanics and specifics of insect pollinations and flower configuration. We know that the barriers which separate most orchid species populations in nature are not the usual genetic ones evolved in most other kinds of plants. Thus, for example, where Cattleya species and their relatives overlap in their geographic distributions, the plants may eventually produce fertile natural hybrids. Adams and Anderson in 1958 list 26 natural hybrids for Cattleya with an additional 238 primary hybrids produced in cultivation. More must be added to such lists today. We can see that although the species isolating mechanisms work most of the time in nature, they are not perfect, particularly when genetic incompatibility is not a factor. Therefore the question of varietal versus species status of certain cattleyas becomes mainly concerned with geographical distribution and how heavily one may wish to use it as a major criterion in establishing taxonomic rank. Since orchids are presumed by botanists to have recently entered an explosive phase of rapid evolution (at least before modern man came upon the scene destroying forests and other ecological niches) location has a strong role to play in distinguishing one species from another. Also, if most orchid species are still "young", so to say, they will not have had an opportunity to spread, particularly in areas of mountains or valleys, or continental formations that easily provide distribution barriers. That idea of endemism will be much followed in this book, and Table V represents my viewpoint on Cattleya classification as nearly as I can put it down on paper. Systematists will find differences with previous systems in the sub- generic taxa. Besides geography and vegetative habit, I used both pigmentation and details of the flower anatomy, particularly of the lip, in arriving at the subgeneric divisions. Flower pigmentation systems have evolutionary significance, even though we may not understand their role, and should be considered in any overall scheme for the cattleyas. And the lip of the flower, with its uniquely close association with the column, is critical for pollinator and successful pollination, and is thus essential for the perpetuation of the species. The lip outlines are presented in the drawings on page 22, and a key to the subgeneric taxa is to be found in Table VI. Table VII provides the necessary Latin to make the publication of this scheme "official" so far as botanical nomenclature is concerned. In presenting this material the author hopes to provide not only a better view of the internal relationships within the genus Cattleya, always considering these species from an evolutionary or a developmental point of view. The characters are where you find them, and they add up for me to a reticulate evolutionary scheme such as Mrs. Adams and I presented in our paper to the World Orchid Conference in London. Such reticulation, we thought, could most likely have come about through ancient hybridization, followed then by segregations and inbreeding of localized clones to
12 The Cattleyas I produce eventually new species. Most are agreed that C. dormaniana in the Laelioidea is somehow a primitive member of the genus, the only species with remains of a more primitive orchid number of eight pollinia (see Dressier), the balance of the species of Cattleya having four. The lip structure of dormaniana shows an affinity through C. forbesii with the Intermedia alliance of the species. It also shows a relationship with that group by another characteristic: having petals narrower than the sepals, seldom wider unless there has been some gene flow from wider petaled labiate species. This narrow petaled feature of the Intermedia flowers is also shared by other multifoliate species in the genus besides dormaniana. The plants characteristically have two or three leaves per stem, and the stems are unthickened, tough and stringy. As is stated above, the characters are where you find them! The lips of both Laelioidea and Intermedia show bold elongated lateral lobes with rounded tips; lateral lobes that are each larger in area than the midlobe; and the sinuses between the lateral lobes and the midlobes are distinct and narrow so that the midlobes have little or no isthmus connecting them with the base of the lip and they can even overlap the midlobe. The midlobes are either rounded or slightly indented at their tips, and the heavy central vein of the lip, with its two heavy lateral veins, may usually be traced easily to the apex. Having a small sinus to separate off the midlobe clearly, even though it may not have an isthmus, is already a step beyond the "labiate" type of Cattleya (subgenus) flowers with their large rolled lips that enclose the column without more than a notch or indentation in the lip outline to indicate the lateral lobes. The lack of indentation in the lip outline is an "Andean" characteristic mostly continued into the species of Central America. But, in the Stellata it is also found in C araguaiensis of Brazil together with monofoliate growth. The Stellata all have a distinct winged column. The presence of the sinus, together with spots, unthickened stems and multiple leaves is more of a "Brazilian" coastal syndrome, and so provides interesting grounds for speculation. How did it arise? From what ancestral stock is it derived? Why are the Andean cattleyas characterized by one leaf instead of two or more? Why are they without lip lobing? Most botanists agree that loss of or specialization of plant parts indicates a more "advanced" status, while retention of "original" condition indicates a more primitive quality. Two further degrees of specialization in lip notching may be observed. In the Falcata complex the sinus becomes progressively deeper, making the isthmus definitely narrower and elongated to at least a third of the lip in length. In these forms the lateral lobes are accordingly reduced in size but remain relatively large in area, though most are no more than equal to the midlobe in size. The midlobes, and often the tips of the lateral lobes, may be covered with small granules or papillae, and the lateral lobes have distinctly pointed apices, in contrast to the rounded tips mentioned above. The other line of specialization increases the sinus to such a point that the lateral lobes are much reduced in size and cannot begin to cover the column completely. This is a quality of the Aclandia subgroup with their pencil-thin ramicauls on the one hand, and the stubby bulbous-stemmed
The Problems of Classification 13 Rhizantha on the other. The Schomburgkoidea, with the exception of G bicolor, have flowers with moderately developed sinuses, pointed lateral lobes, broad though short isthmi and a fanning out of the central veins to match the crenations of the lip edges. The lateral lobes of bicolor flowers are so reduced in size as to be mere points, but their broad isthmus and midlobe configuration clearly point to their affinities. Why this species and the two of the Rhizantha should have exposed columns is probably significant if we could figure it out. The petals of Schomburgkoidea tend to point up (are not horizontally oriented), have coarsely waved margins, and the flowers mostly appear on elongated inflorescences. The plants show a general affinity for sunny bright environments, and three of them, at least, can be propagated from stem sections. Three leaves per growth are usual. For what it may be worth evolutionarily, Cattleya violacea in this group has the widest distribution of all the cattleyas in the genus. Does that mean it is also one of the oldest? Or, has it just been more successful? Within the Cattleya (subgenus), the Stellata and the Circumvolva, spotting of the flowers does not exist as in the above groups, nor is green pigmentation in the flowers a common quality. The petals are usually broader than the sepals and of a lighter substance. The pigmentation systems, carotenoid vs. anthocyanin, yellow or purple, are noted by the sectional epithets. The lip midlobes are larger and more elaborately developed and pigmented than in the other subgenera. The plants of Cattleya well deserve their labiate (lip) designation as the midlobe elaboration is indeed an outstanding feature of the flowers. Research on pollinators and their evolution may occasionally provide an explanation of the development of these different systems. Certainly we know that flowering plant families and insects evolved together, each dependent on the other. Coupling pollinator adaptations with the other comparative points described gives us a basis then for an overall classification scheme that is related, we hope, to evolutionary events. Natural hybrids within the genus Cattleya are described under the various parental species involved. When the natural hybrid is of inter- generic origin, it will be discussed, as appropriate, under the non-cattleya species, when its turn comes. In this book 50 species of Cattleya are described, two of distinctly hybrid origins; and there is the possibility of the count being 51 if C tigrina (see under C. guttata) is considered a separate entity.
14 The Cattleyas I TABLE I Genera of the Cattleya Alliance according to their location South American Genera Constantia Pseudolaelia Lanium Sophronitella Leptotes Sophronitis Pinelia Renata Central American and Mexican Genera Alamania Homolopetalum A rtorim a Horm idiu m Barkeria Microepidendrum Caularthron Nageliella Dressleriella Rhyncholaelia Hagsatera Caribbean Genera Basiphyllaea Laeliopsis Broughtonia Neocogniauxia Cattleyopsis Psy chilis Caularthron Quisqueya Domingoa Tetramicra Generalized Distribution Brassavola Cattleya Encyclia Laelia Schomburgkia TABLE II Intergeneric Combinations with Cattleya Registered through April, 1988 With Approved Abbreviations CATTLEYA x Barkeria x Barkeria x Laelia x Brassavola x Brassavola x Broughtonia x Brassavola x Broughtonia x Epidendrum x Laelia x Brassavola x Broughtonia x Laelia x Brassavola x Broughtonia x Laelia x Sophronitis x Brassavola x Diacrium x Brassavola x Diacrium x Laelia = Cattkeria (Cka.) = Laeliocattkeria (Lcka.) = Brassocattleya (Be.) = Stellamizutaara (Stlma.) = Hattoriara (Hatt.) = Otaara (Otr.) = Hasegawaara (Hasgw.) = Hookerara (Hook) = Iwanagara (Iwan.)
The Problems of Classification 15 x Brassavola x Dominga x Epidendrum x Brassavola x Epidendrum x Brassavola x Epidendrum x Laelia x Brassavola x Epidendrum x Laelia x x Brassavola x Epidendrum x Lae/w x Sophronitis x Brassavola x Laelia x Brassavola x Laelia x Schomburgkia x Brassavola x Laelia x Schomburgkia x Sophronitis x Brassavola x Laelia x Sophronitis x Brassavola x Laeliopsis x Brassavola x Schomburgkia x Brassavola x Sophronitis x Broughtonia x Broughtonia x Cattleyopsis x Broughtonia x Diacrium x Broughtonia x Epidendrum x Broughtonia x Epidendrum x Laelia x Broughtonia x Epidendrum x Laelia x Sophronitis x Broughtonia x Epidendrum x Schomburgkia x Broughtonia x Laelia x Broughtonia x Laelia x Sophronitis x Broughtonia x Laeliopsis x Broughtonia x Schomburgkia x Broughtonia x Sophronitis x Cattleyopsis x Cattleyopsis x Epidendrum x Diacrium x Diacrium x Epidendrum x Diacrium x Epidendrum x Laelia x Diacrium x Laelia = Kawamotoara (Kwmta.) = Vaughnara (Vnra.) = Yamadara (Yam) = Yahiroara (Yhra.) = Rothara (Roth.) = Brassolaeliocattleya (Blc) = Recchara (Recc) = Fergusonara (Ferg.) = Potinara (Pot) = Fujiwarara (Fjw.) = Dekensara (Dek.) = Rolfeara (Rolf.) = Cattleytonia (Ctna.) = Vejvarutara (Vja.) = Brozvnara (Bwna.) = Epicatonia (Epctna.) = Jewellara (Jzva.) = Buiara (Bui) = Wilburchangara (Wbchg.) = Laeliocatonia (Lctna.) = Hawkinsara (Hknsa.) = Osmentara (Osmnt) = Schombocatonia (Smbcna.) = Bishopara (Bisk) = Opsiscattleya (Opsct) = Hawkesara (Hwkra.) = Diacattleya (Diaca.) = Tuckerara (Tuck) = Allenara (Alna.) = Dialaeliocattleya (Dialc.)
16 The Cattleyas I x Diacrium x Laelia x Sophronitis x Diacrium x Schomburgkia x Domingoa x Epidendrum x Epidendrum x Epidendrum x Laelia x Epidendrum x Laelia x Schomburgkia x Epidendrum x Laelia x Schomburgkia x Sophronitis x Epidendrum x Laelia x Sophronitis x Epidendrum x Laeliopsis x Epidendrum x Schomburgkia x Epidendrum x Sophronitis x Laelia x Laelia x Schomburgkia x Laelia x Schomburgkia x Sophronitis x Laelia x Sophronitis x Laeliopsis x Leptotes x Schomburgkia x Sobralia x Sophronitis = Higashiara (Hgsh.) = Mizutara (Miz.) = Arizara (Ariz.) = Epicattleya (Epc.) = Epilaeliocattleya (Epic.) = Northenara (Nrna.) = Izumiara (Izma.) = Kirchara (Kir.) = Maymoirara (Mymra.) = Scullyara (Scu.) = Stacyara (Stac.) = Laeliocattleya (Lc.) = Lyonara (Lyon.) = Herbertara (Hbtr.) = Sophrolaeliocattleya (Sic.) = Laeliopleya (Lpya.) = Cattotes (Ctts.) = Schombocattleya (Smbc.) = Sobraleya = Sophrocattleya (Sc.) Note that certain horticulturally important names, such as Diacrium and Brassavola, for Caularthron and Rhynchokelia respectively, are conserved by the RHS in registering grex names. In other words, there are other species of true Brassavola in addition to Rhyncholaelia. Epidendrum, in like fashion, may refer to true epidendrums or to those we now call Encyclia, or by some other generic epithet, names not used in hybrid combinations.
The Problems of Classification 17 TABLE III Outlines of Cattleya Classification Schemes Based Only On The Species Found in Brazil From Cogniaux in Martius' Flora Brasiliensis (1898) Genus Cattleya Section Gymnochila Subsection Rhizanthemum—walkeriana, nobilior Subsection Acranthemum—aclandiae, dolosa, schroederiana, bicolor, velutina Section Cryptochila Subsection Diphyllae Series Guttatae—guttata, granulosa, porphyroglossa, elatior, soraria, tigrina, patrocinii, brasiliensis, leopoldii, amethystoglossa, victoria-regina, whitei, elo ngata, sch illeria na Series Intermediae—violacea, loddigesii, harrisoniana, intermedia, brymeriana, brownii, Isabella, forbesii, dormaniana Subsection Monophyllae—labiata, eldorado, lawrenceana, luteola From Pabst and Dungs in Orchidaceae Brasilienses (1975) Genus Cattleya C. walkeriana alliance— nobilior, walkeriana C. aclandiae alliance—aclandiae, bicolor, grossi, measuresiana, velutina C. granulosa alliance—elongata, granulosa, porphyroglossa C. guttata alliance— amethystoglossa, dormaniana, guttata, leopoldii, schilleriana C. intermedia alliance—brownii, elatior, forbesii, harrisoniana, intermedia, loddigesii, violacea C. labiata alliance— araguaiensis, eldorado, labiata, lawrenceana, luteola From Fowlie in The Brazilian Bifoliate Cattleyas and Their Color Varieties (1977) Genus Cattleya Section Laelioidea—dormaniana Section Gymnochila—velutina, bicolor, aclandiae, schilleriana, violacea, walkeriana, nobilior Section Cryptochila Subsection Granulosae—granulosa, schofeldiana, porphyroglossa Subsection Guttatae—elongata, amethystoglossa, leopoldii, guttata Subsection Intermediae—intermedia, forbesii, loddigesii, harrisoniana
18 The Cattleyas I TABLE IV Outlines of Cattleya classification schemes for all cattleya species Outline from R. A. Rolfe in the Orchid Review (1895) Group of C. guttata—guttata, elatior, porphyroglossa, granulosa, leopoldii, amethystoglossa, elongata, schilleriana Group of G intermedia—superba, intermedia, dormaniana, forbesii, loddigesii, harrisoniana, brownii Group of C. walkeriana—dolosa, walkeriana, nobilior, schroederiana, aclandiae, velutina, bicolor Group of C. skinneri—skinneri, hennisiana, bozvringiana, aurantiaca Group of C labiata—labiata, warneri, gaskelliana, trianae, schroederae, mendelii, mossiae, percivaliana, lueddemanniana, warscewiczii, maxima, dowiana, eldorado, rex, iricolor, luteola Group of G citrina—citrina Outline from Brieger, Maatsch and Senghas in Schiechter's Die Orchideen (Third Edition, 1981) Subgenus Skinneri Section Skinneri—bozvringiana, skinneri, deckeri, patini Section Aurantiaca—aurantiaca, x pachecoi Subgenus Diphyllae Section Intermedia—loddigesii (subspecies loddigesii, harrisoniana, purpurea), kerrii, intermedia, forbesii, dormaniana, araguaiensis Section Guttatae— amethystoglossa, violacea, granulosa, schofeldiana, schilleriana, guttata, leopoldii (subspecies leopoldii per- nambucensis), elongata Section Arcranthemum—aclandiae, velutina, bicolor, tetraploidea Subgenus Rhizanthemum—walkeriana, nobilior Subgenus Cattleya—rex, maxima, iricolor, chocoensis, trianae, warscewiczii, dowiana (subspecies aurea), mendelii, schroederae, eldorado, percivaliana, mossiae, lueddemanniana, gaskelliana, jenmanii, labiata, warneri, lawrenceana, luteola
The Problems of Classification 19 TABLE V List of Cattleya Species Arranged into Subgenus and Section by the Author Cattleya Laelioidea—dormaniana Rhizantha—walkeriana, nobilior Cattleya Cattleya—eldorado, gaskelliana, jemanii, labiata, lawrenceana, lueddemanniana, mendelii, mossiae, percivaliana, quadricolor, schroderae, trianaei, warneri, warscewiczii Xantheae—aurea, dowiana, rex Maximae— maxim a Stellata—araguaiensis, iricolor, luteola, mooreana Circumvola Aurantiacae—aurantica Moradae— bowringia na, deckeri, skin neri Aclandia—adandiae, velutina Intermedia—dolosa, forbesii, harrisoniana, intermedia, kerrii, loddigesii Schomburgkoidea—bicolor, elongata, tenuis, violacea Falcata Guttatae—amethystoglossa, guttata, leopoldii, schilleriana Granulosae—granulosa, porphyroglossa, schofeldiana
20 The Cattleyas I TABLE VI Key to Subgenera and Sections of Cattleya by the Author 1. Pollinia 6-8 though some are smaller Laelioidea 1. Pollinia 4 go to 2 2. Plants stubby, rhizomatous Rhizantha 2. Plants upright, clustered stems go to 3 3. Plants unifoliate go to 4 3. Plants usually with more than one leaf, at least on mature growths go to 7 4. Flowers "labiate"—large and broad petaled Cattleya, go to 5 4. Flowers more starry, smaller, non-"labiate" Stellata 5. Flowers purple or lavender go to 6 5. Flowers yellow with red lips Xantheae 6. Lip with central yellow stripe Maximae 6. Lip without central yellow stripe Cattleya 7. Lip without lateral lobes G bicolor (Schomburgkoidea) 7. Lip with lateral lobes even though they may be set off by only a shallow notch or no indentation at all go to 8 8. Lips with the notch small or no indentation, flowers not spotted Circumvolva, go to 9 8. Lips with lateral lobes marked by sinuses so that a definate isthmus to the midlobe is formed, flowers usually spotted to some degree go to 10 9. Flowers purple Moradae 9. Flowers yellow or orange Aurantiacae 10. Lateral lobes rounded, each smaller than the midlobe Aclandia 10. Lateral lobes broad and shouldered, each not smaller than the midlobe go to 11 11. Lateral lobes rounded at tip Intermedia 11. Lateral lobes pointed at tips (or lacking in C. bicolor) go to 12 12. Isthmus wide, about half the width of the midlobe Schomburgkoidea 12. Isthmus narrow, one third or less the width of the midlobe Falcata, go to 13 13. Isthmus one third or less of the lip length Guttatae 13. Isthmus more than one third of the lip length .... Granulosae
The Problems of Classification 21 TABLE VII Latin diagnoses for the Cattleya classification system presented in this book. Laelioidea (Fowlie). Withner. Subgen. based on G dormaniana (Rchb.f.) Rchb.f. Pollinia quatro superiora perfecta, quatro inferiora parva et imperfecta. Rhizantha (Cogniaux) Withner. Subgen. based on C. walkeriana Gardner. Rhizoma repens, elongata; psuedobulbis crassis, ovatis vel fusiformibus; inflorescentia basilaris. Cattleya Lindley. Subgen. based on C. labiata Lindley. Floresgrandi; labello late ovato-oblongo, margine undulato-crispo, indiviso; psuedobulbis a pice monophyllis. Cattleya Lindley. Sect, based on C. labiata Lindley. Flores roseo-violacei vel purpureo-lilacini. Xantheae Withner. Sect, based on C. dowiana Bateman. Flores luteoli vel aurei. Maximae Withner. Sect, based on C. maxima Lindley. Labelli florum cum linea centrali lutea. Stellata Withner. Subgen. based on C. luteola Lindley. Flores plus minusve stellati, parvi usque ad medium; labello vix indiviso; plantae monophyllae. Circumvolva Withner. Subgen. based on C. skinneri Bateman. Plantae diphyllae; pseudobulbis robustis, incrassatis; labellum column involvens. Aurantiacae Withner. Sect, based on C aurantiaca (Bateman) Don. Flores crocei usque ad flavos; labellum acutum. Moradae Withner. Subgen. based on C. skinnerii Bateman. Flores purpurei; labellum rotundatum. Aclandia Withner. Subgen. based on C. aclandiae Lindley. Plantae diphyllae; pseudobulbis cylindraceis, induratis; labellum lobis lateralibus parvis, subobsoletis usque ad rotundatos; columna nuda. Intermedia (Cogniaux). Withner. Subgen. based on C. forbesii Lindley. Petala sepalo dorsali satis latiora; pseudobulbis longisculis, cylindreis, apice diphyllis; folia obtusa. Schomburgkoidea Withner. Subgen. based on C. violacea (Kunth) Rolfe. Flores aliquantus carnosuli; petalis marginesatis undulatis; labellilobus terminalibus breviter latesque unguiculatus, multinervis, nervis supra satis prominans. Falcata Withner. Subgen. based on C guttata Lindley. Pseudobulbis cylindraceis, interdum elongatis, apice di-triphyllis; sepalis coriaceis, lateralibus manifeste falcatis; labelli limbi apices intus tecti papillis. Guttatae (Cogniaux). Withner. Sect, based on C guttata Lindley. Labelli lobus terminal late breviterque unguiculatus, minus quam pars tertia totae longitudinis labelli. Granubsae (Fowlie). Withner. Sect, based on C. granulosa Lindley. Labelli lobus terminal latiscule longeque unguiculatus, maiorquam pars tertia totae longitudinis labelli.
22 The Cattleyas I Lip outlines of representative Cattleya species from each of the subgeneric categories. Lips not drawn to scale. In each case, note the similarities among the members of each group and the comparison with the shapes of the other groups. See text, p. 12-13, for other details. Laelioidea C. dormaniana Rhizantha C. nobilior Rhizantha C. walkeriana Cattleya, Cattleya C. gaskelliana Cattleya, Xantheae C. aurea Cattleya, Maximae C. maxima Circumvolva, Aurantiacae C. aurantiaca Cattleya, Stellata C. luteola Cattleya, Stellata C. iricolor Circumvolva, Moradae C. skinneri
The Problems of Classification 23 A elandia C. aclandiae A eland ia C. velutina Intermedia C. harrisoniana Schomburgkoidea C. bicolor Schomburgkoidea C. violacea Schomburgkoidea C. tennis Falcata, Guttatae C. amethystoglossa Falcata, Guttatae C. guttata Falcata, Guttatae C. schilleriana Falcata, Granulosae C. granulosa Falcata, Granulosae C. porphyroglossa Falcata, Granulosae C. schofeldiana
25 CHAPTER 3 Introgression in Cattleyas When populations of related species overlap in nature, natural hybridization can occur. The concept of introgressive hybridization was first formulated by Anderson and Hubricht in 1938 "to denote the gradual infiltration of the germ plasm of one species into another as a consequence of hybridization and repeated back crossing." In the plant world introgressive hybridization has given rise to new species as introgressively formed clones have been isolated and subsequently given rise to new populations. Sometimes the new hybrid populations not only combine morphological characteristics derived from their parents but, more importantly, combine physiological qualities as well. Though these physiological abilities may not show externally, as do flower color or leaf shape, the offspring can often thrive and reproduce in new environments not well suited to either parent species. Thus introgression is often a strong source of variation within a species, and, as we know, some orchid species show much variation, others little. This variation provides a plasticity of species response. In my opinion introgressive exchanges have played a particularly significant role in orchid evolution, and the cattleyas are one group that clearly demonstrates that role. Variant forms and populations of certain orchid species have long been recognized—in some species hardly any two plants are alike. For example, it is difficult to find two Cattleya mossiae flowers which are truly similar. At the extreme they can have such distinctively different lip veining patterns that they would seem to be separate taxa. If you have traveled to Brazil you may know that there are more than 100 named clones of Cattleya intermedia, all presumably different and recognizable. There are so many named clones of Laelia purpurata, in fact more than 200, that entire shows in southern Brazil may be devoted to the clones of this single species. Geneticists tell us that mutation of genes is the major source of variation in species, but in the plant kingdom, at least, introgression offers a possibly better alternate explanation.
26 The Cattleyas I The hybridization and repeated crossings of the hybrid individuals back with the parental types, or with each other, may take place many times over many generations. It is not a single event such as is executed by the hybridizer in the greenhouse. The gene flow may be primarily in one direction, toward one of the parental types, so such forms may become the most common. Or, there may be a continuous spectrum of forms ranging between those of the parental species so that it is difficult to determine where one parent population stops, the hybrids begin, and then where the other parental population begins. Using Anderson's techniques, or now, using computer analysis, it is possible to unravel some of these hybrid complexes to gain a better insight into how they are formed. Lotsy's term, syngameon, is well applied to these populations of hybrid origin that may involve two, or even more, species. This hybridization process, if combined with geographical isolation of the resulting clones of such populations from earlier eons, can account nicely for the clusters of related species within the confines of a genus. The labiate cattleyas, or certain of the bifoliate types, demonstrate this well. Further accounts of the details of such studies of cattleyas may be found in the writings of Withner, and Withner and Adams. Fortunately, we have a pictorial record of the orchid family in the old color plate books that cannot be matched for any other plant family, and the cattleyas figure strongly in this old literature. Both careful textual descriptions and meticulously drawn illustrations give us a rather complete record of cattleya variation as it has been observed over the last 175 years. The field work has already been done for us, fortunately so, as with destruction of the forests in the tropics, many of the natural populations of these species are now greatly diminished or even verging on complete obliteration. Within the genus Cattleya several examples of introgression may be cited. One of the most obvious is the natural hybrid population called Cattleya guatemalensis, a complex between Cattleya skinneri and Cattleya aurantiaca. It is particularly easy to analyze, thanks to the distinct colors and flower shapes of the parents. The skinneri has purple flowers, and the aurantiaca orange, so the intermediate guatemalensis hybrids are a salmon or peach-toned lavender. If such hybrids backcross to skinneri they become more lavender; if they backcross to the aurantiaca side, they become more orange, and eventually may produce red, yellow or even white forms as interbreeding continues. These crosses have all been artificially reproduced in cultivation, largely to obtain greater quantities of the rarer colors than may be found in nature. Since the petals of the flowers of Cattleya aurantiaca project forward to a marked degree, while the flowers of Cattleya skinneri are more or less "flat", this characteristic gives us another quality in addition to color as a hallmark of the degree of hybridization. Lip shape and veining patterns are also significant. As will be discussed later, some of the color variants from the hybrid swarm or syngameon have been described as separate species, but this analysis clearly demonstrates that they now do not deserve such distinct status. A clonal name is sufficient. Another fine example of introgression is provided by the Colombian natural hybrids called Cattleya hardy ana from Cattleya warscewiczii (gigas) x Cattleya aurea. Again, we have distinctive color forms with a purple flower
lntrogression in Cattleyas 27 on one side (warscewiczii) and yellow with a red lip flower (aurea) on the other. The inheritance of the veining pattern and color of the red lip, all characteristics of the aurea, as well as the presence of large yellow "eyes", are characters easily followed in the hardyana combinations. The lateral petals and sepals may be of a variety of colors from white through lavender. This natural hybrid population has also been duplicated in cultivation, and should be made again, with selected superior parents, for its colorful beauty. Clement Moore, quoted in White, remarked that in hybridizing with C. aurea "(it) puts color into the throat of the labellum, but does not intensify the color of the sepals and petals as does Cattleya Dowiana". Using it with pure white flowers did not "put" color into the petals, but using C. dowiana could. Moore thought the dowiana or aurea should be the female parent in such hybrids as it would then have a predominant effect in the hybrid. The other clear example of introgression involves three species, two cattleyas and a laelia, on Santa Catarina island off the coast of southern Brazil. Although Anderson's ideas about introgression originally derived from situations involving pairs of species, the Santa Catarina story readily extends it to complexes among three. Lc. elegans was discovered in 1847. Boyle described the plant as "very plentiful in its native habitat beyond all other species ... home was a small island where it clung to the rocks. Every plant within reach has long been cleared away; those remaining dwell in perilous places on the cliffs." Tatum, a later collector, wrote in 1930 that "Lc. Elegans is still very plentiful... of course all the plants are not elegans but there are also Laelia purpurata and Cattleya intermedia. .. Laelia purpurata, Cattleya Leopoldii and Cattleya intermedia are three distinct species. As they grow associated with one another, three distinct natural hybrids are produced, viz., Cattleya intricata (intermedia x Leopoldii), Laelio-Cattleya elegans (L. purpurata x C Leopoldii) and Lc. Schilleriana (L. purpurata x C intermedia)/' Lenz and Wimber discussed these observations in their chapter on hybridization and inheritance in The Orchids, A Scientific Survey, edited by the present author. Plants contained in this complex show, in the so-called purpurata population, intermedia characteristics in petal form, lip lobing or color patterning. There is, in fact, evidence of hybridity in each of the parental populations. The lavender hybrids were identified as elegans types when they had intermedia petal and sepal patterns, but when they had a "labiate" type of petal form, they were classified as a variety of L. purpurata instead of elegans. The white forms, especially those with labiate cattleya form, were called schilleriana. Few schilleriana were found, but indeed the least common of all were the combinations between the bifoliate cattleyas which produced G intricata. Intricata was the least desirable, horticulturally speaking, and the form least distinct and therefore most difficult to distinguish from its parents. It is not surprising, therefore, that fewer of them were mentioned or described. Other introgressive swarms have complicated the naming and descriptions of Cattleya species, particularly since there are no special names for the hybrids in the syngameon intergrades and the parents have certain definite similarities. Examples include C. loddigesii x C. harrisoniana,
28 The Cattleyas I C. guttata x C leopoldii, C walkeriana x C nobilior, G bicolor x C harrisoniana and C. granulosa x C schofeldiana. More detailed observations and measurements on the clones and cultivars of these species and their hybrids in cultivation could produce analytical data that would help resolve the difficulties. Does anyone volunteer with data? Please write the author.
29 CHAPTER 4 Cattleya Culture The culture of cattleyas is such that one can only set forth a few rules, while the rest must be learned by refining one's own experience. The following horticultural information is derived from a variety of sources, including the author's experience, and must be interpreted in terms of one's own cultural conditions and how they may best be used to grow these orchids. Of course, supplying proper conditions for a commercial greenhouse filled with the same sorts of plants is one thing, but most of us have mixed and crowded collections where conditions are simply not tailored for one species or genus. In such questionable conditions it is quite amazing how tolerant orchids are to growing in cultivation! So, the recommendations which follow represent the ideal or pure state, as though there were no other orchid genera but cattleyas with which we need to be concerned. And seemingly to compound the problem, different cattleyas require somewhat different growing conditions as we shall see. This point requires emphasis! All cattleyas are not culturally identical! Some require more heat, others less; some have distinct dormancy, others not; some like more humidity or air; and so it goes, species to species. Such details will be discussed as we know them in the descriptions of individual species. Cattleyas require ample light, needing shade only during the summer months and the brightest days of spring and fall. Most are sun-loving plants so like all the light they can get, aside from direct sun. If their foliage appears too yellow, increase shading. Continued exposure to excessive light will result in further chlorophyll destruction as well as dehydration leading to shriveling of the pseudobulbs and leaf tissues. Plants exposed to excessive light are flabby to the touch and are readily flexed without tissues breaking or leaves splitting. On the other hand, lush, dark foliage is not desirable. It is weak and susceptible to fungi and rot, and though the plants may appear fine if they haven't flopped over from their own weight, they do not flower at their best. A medium, yellow-green leaf color is best, with a firm, solid growth, and each growth spurt larger and more vigorous than
30 The Cattleyas I the last. In short, proper control of light in most cases is the most important single factor in successful orchid growing. As to temperature and ventilation, Orpet and Lager have said it well in their classic statement in Bailey's Cyclopedia of Horticulture that cattleyas "delight in a genial atmosphere, with all the air possible when the outside temperature will permit." Cold drafts should be mitigated by passing the air over the greenhouse floor or heating elements before it reaches the plants. "In summer, from May on to the end of October, air should be admitted day and night; thus there are no temperatures to be prescribed for these months. A night temperature of 65 (18 C) to 70 F (21 C) is then suitable, rising by day according to the sunshine. Later, when artificial heat isnecessary,55to60F(16C)atnightand60to65F(18C)duringthedayis about right, bearing in mind that the earliest species to flower may be kept at the warmer end, and the later, summer-blooming species may be wintered at the cooler end of the structure... .One cannot change the time of blooming of a cattleya, that is to say, force it as other plants may be forced, without injury to the plant and a poor quality of bloom, but they are often retarded by systematic cooler treatment." With the exception of a few species that have a distinct dormancy or dry period, most cattleyas should be watered moderately the year around. The plants are either getting ready to flower, are in crop, or are recuperating from flowering. Some plants grow and then flower immediately; others grow and form a sheath and buds, only flowering some weeks later after a period of dormancy has passed. Observation of one's plants will show which patterns they follow, and in hybrids, of course, their pattern reflects the parental genes. Seedlings will grow continuously so need not be provided rest periods until they are of good size. The plants need more water in periods of growth and flower formation, less during quiescent periods. Growth may consist of new root or leaf formation, separately or together, after which flower formation follows. If you are able to grow the plants well, but cannot flower them, look first to the amount of light as the limiting factor, then to the temperature relationships for an explanation. Fertilizer always comes last! In general, water cattleyas in the mornings on sunny days so that they can dry off before nightfall. An actual soaking of the bark, fiber or pumice is necessary only about once a week for mature plants. Far more important, and to be distinguished from this soaking process, is that of the daily dampening-down, which may have to be done two or three times a day in hottest weather. This is simply a matter of turning on the humidifiers or misters or wetting the walks, stagings and the undersides of the benches, lightly misting the foliage, etc., which provides a humid atmosphere during warm weather. In winter the practice is helpful in counteracting the drying effect of artificial heat. Humidity ideally should be maintained between 50 and 75%, but at no time should the house be allowed to become close or damp and cold, as fungi or bacteria will surely attack the plants. To prevent bacterial-fungal invasions, most growers today use fans to circulate the air continuously. When it is rainy and humid outside, watering indoors must be proportionately decreased. As has been said often before, many more orchids (including cattleyas) are killed by excess watering than by too little. The "genial atmosphere" is the thing to achieve. If there is a question about
Cattleya Culture 31 watering, then don't! Cattleyas like most orchids are usually grown nowadays in bark mixtures which lack nutrients and require a weekly or continuous fertilizing routine to provide the necessary elements for optimal growth. Fern fiber (tree, polypodium, or osmunda) is another commonly used medium and does have a certain nutrient content, but still orchids benefit from occasional feedings to maintain good growth. Plants growing in fiber media do not require the high nitrogen fertilizer nor the weekly fertilizing that is necessary for plants grown in bark. They may benefit from it, though, especially at times of high nutrient demand, periods of high light and active leaf, root or flower formation. In any case, orchids require relatively low total levels of nutrients. Despite fertilizer company advertisements, fertilizer is seldom a limiting factor in growing save when used too often or in excessive amounts. Fern fiber is expensive compared to bark, and calls for greater potting skill in the case of polypodium or osmunda fiber, but it does have the advantage of not needing a careful, routine fertilization. In the northwest U.S., at least, many people have begun growing cattleyas in a type of yellow-white pumice with fine results. Some prefer to mix it half and half with bark, after sifting and grading by particle size. The more or less spherical pumice particles absorb water well and yet, because of the good air spaces between granules, roots can penetrate and grow deeply into the pots with no difficulty. Only this one type of pumice has seemed to work uniformly well, other types not producing the same results or being definitely toxic. It is almost impossible to overwater under these conditions, and fungal problems are less common. In combination with the pumice, a small amount of Osmocote 14-14-14 fertilizer is top-dressed on the pots. The coated fertilizer pellets meter out a certain amount of nutrient with each watering and need renewing only once or twice a year. If there is any problem with salt buildup that some growers talk about, the grower is just wasting fertilizer and putting on more than the plants can use, supporting the fertilizer companies unnecessarily. The perfect balance among light, temperature, humidity, air, watering, nutrients and the potting material is the sign of the good orchid cultivator, the one with the green thumb. Fertilizing and the growing medium are probably the least important of these elements. Light, water, air and humidity are the most critical. One must learn to "read" the plants to monitor their progress, "talk" with them. Also, one must be patient in growing cattleyas or other orchids new to any collection, for no two people (or the rain forests) grow orchids in exactly the same way. It takes from two to three growth cycles in a new location for most plants to adapt completely to their new surroundings, especially since most should be repotted when received from the nursery, a process that in itself can set a plant back a year or two. Remember also that the growth a plant achieves in a given year will influence its development the following year. By the time a new lead growth is 2 in. high, the leaves and number of flowers it will produce are already determined in primordial form in the shoot meristem. G iving the plant the best combination of conditions for the development of the new lead will, in turn, influence the succeeding one favorably. A good healthy root system is to be desired above all, so good growers are more concerned with watching roots than leaves, though, of
32 The Cattleyas I course, everyone looks at flowers. Repotting is always done during dormant periods, ideally just as or before new vegetative growth starts, and especially just as a flush of new roots begins. The latter may mean repotting some plants, particularly bifoliate cattleyas, after the growth is well along or even beginning to flower, but it is best, even so, for root formation to be the guide. With the formation of new roots, the plants then reestablish themselves immediately with the least setback. Repotting at other times may cause the tissues to dehydrate before new root action begins, which may make the plants unusually inactive so that they even skip their normal growing period and deteriorate completely. To keep roots alive and vigorous, don't overwater the compost but instead maintain the humidity. Don't expect roots to all stay neatly in the pot in the potting material and repot with least disturbance every two or three years as necessary. Under ideal conditions in cultivation, leaves and roots may last for at least three years on healthy cattleyas. Unless the roots on the older portions of the plants are still alive, those parts must receive their water and nutrients from the younger parts. This subjects the plants to certain stresses as orchid roots can only absorb water and nutrients at a limited rate, especially if roots are already poor and in a soggy, overfertilized potting medium with a poor air supply. This limited rate of uptake is also the reason that dehydration is better cured by increased humidity rather than increased watering. The extra water only rots the compost, fills air spaces and inhibits proper root function, making the problems worse. Continued growth of good green root tips out into the air, incidentally, is a good sign that the proper humidity is being maintained. All things considered, the ideal cattleya plant should consist of three well-leafed pseudobulbs and a new lead growth. If larger, more specimen- like plants are desired, clones should be chosen that produce multiple leads each year, two per growth instead of the usual one. It also helps if plants with short rhizome distances between growths are selected. Don't consider plants with strong apical dominance that each time produce only single growths which march deliberately across the flower pot. Ideal specimens are then a compounding of the ideal three-leafed plant mentioned above. Propagation by seed is the usual method for cattleyas, though divisions and back-bulbs are often used for fine forms of established adult plants. The latter method, until mericloning was developed, was the only way particularly desirable varieties, such as some reds or albas, could be propagated true to form. Not much wonder prices were often very high, and the purchaser sometimes waited for years to acquire a rare form. One means of making a division, yet save the back-bulbs, is to cut halfway through the rhizome and leave the parts in the medium until the dormant back-buds start to grow. Then, the plant may be separated and each part repotted. At least two or three pseudobulbs should be left in front of the cut to form the new stock plant, so before undertaking the procedure, check to see if there is a good viable bud at the base of at least one of the back-bulbs. Without a plump bud, the back-bulbs may never "break" to produce a new plant even if the rhizome is cut. Functional roots on that back section of rhizome are additional insurance for a new growth. Propagating from seeds, even though the seedlings will require
Cattleya Culture 33 several years for flowering, is the only means of obtaining new colors or other desired traits. How seedlings turn out is always a gamble, but no one would want to grow orchids without occasionally taking the risk of finding an ideal plant among the chosen few that one felt compelled to purchase. With some crosses, perhaps one in 50 or more plants turns out well; in others nearly every plant may be good. One never knows in advance, even with the best of parents. That is the reason the mericloning technique has been so valuable, especially for commercial growers. By isolating meri- stems and producing mericorms at will, even by the thousands, it is'possible to grow plants of known characteristics to fill any number of greenhouses. There is little gamble here—the plants are made to order—and if mutations do occur, they may be a desirable change. For the amateur, the mericloning technique is also a boon. It is possible for everyone to have what amounts to divisions of the best-awarded plants—plants with superior quality, rare color, or desired season of blooming. The flowering of some cattleyas is controllable by day length and temperature manipulation. These techniques have proven quite useful for Cattleya labiata and its hybrids which are ordinarily fall-flowering. If days are lengthened in the fall to 14-16 hours (actually, ifs the decrease in length of continuous darkness that is critical), the plants will remain vegetative and so will not flower until winter or later. This effect is enhanced by employing higher temperatures than normal. In commercial production it is thus possible to delay flowering to a later desired date, such as Christmas or the New Year. The plants will flower about 9-10 weeks after the increased light is reduced and temperatures lowered, so the crop can be produced at will. Such plants are "controllable" and produce their flowers when demand and prices are high. No one has worked out the reverse, the shortening of long day (short night) conditions for spring flowering plants, and there is comparatively little commercial interest as many cattleyas are naturally spring flowering. Two major growth patterns in cattleyas may be recognized, as has been mentioned. Group I produces a new lead in the late winter or early spring, and develops flowers immediately thereafter. These species and their hybrids begin to root only as flowering ends and while the leaf sheaths remain entirely green. Each growth of such plants will flower separately as the leads mature. When rooting is complete, there is no further development until the next cycle begins the following year. This group includes Cattleya aclandiae, bowringiana, dowiana, gaskelliana, harrisoniana, intermedia, leopoldii, lueddemanniana, violacea, warneri and warscewiczii. Group II plants also grow a new lead and roots during the summer, but then enter a resting state for months until the flowers are produced the following winter or spring. When these species and their hybrids flower, all the accumulated leads of the past year flower at the same time, after bud and leaf sheaths have dried to become white and papery. This group includes Cattleya aurantiaca, guttata, labiata, mendelii, mossiae, percivaliana, Schroderae, skinneri and trianaei. Hybrids within either of these groups grow and flower in the same pattern, but hybrids between the groups can be intermediate, pulled toward spring flowering by Group II dominance, or toward summer
34 The Cattleyas I flowering by Group I dominance. Hybrids, therefore, often flower irregularly, and often more than once a year, as a result of their mixed parentage, an advantage over species for the grower, especially the amateur. Additional cultural information is readily available in books and articles in the various orchid journals.
35 CHAPTER 5 Description of Species List of Species C. aclandiae, 36 C. amethystoglossa, 37 C. araguaiensis, 39 C. aurantiaca, 40 C. aurea, 42 C. bicolor, 44 C. bowringiana, 46 C. deckeri, 47 C. dotosfl, 49 C. dormaniana, 51 C. dowiana, 52 C. eldorado, 55 C. elongata, 57 C. forbesii, 59 C. gaskelliana, 60 C. granulosa, 62 C. guatemalensis, 63 C. guttata, 67 C. hardyana, 70 C. harrisoniana, 72 C. intermedia, 73 C. iricolor, 77 C. jenmanii, 79 C. kerrii, 79 C. labiata, 81 C. lawrenceana, 83 C. leopoldii, 85 C. loddigesii, 86 C. lueddemanniana, 88 C. luteola, 91 C maxima, 92 C. mendelii, 94 C. mooreana, 95 C. mossiae, 97 C. nobilior, 100 C. percivaliana, 101 C. porphyroglossa, 103 C. quadricolor, 104 C. rex, 107 C. schilleriana, 108 C. schofeldiana, 110 C. Schroderae, 111 C. skinneri, 113 C. tenuis, 115 C. trianaei, 118 C. velutina, 121 C. violacea, 123 C. walkeriana, 125 C. warneri, 127 C. warscewiczii, 129
36 The Cattleyas I Lady Ackland's Cattleya Brazil Cattleya aclandiae Lindley. 1840 Bot. Reg. 26, t 48. Subgenus: Aclandia Synonym Epidendrum acklandiae Rchb.f. 1861. Walp. Ann. Bot 6:312. Plants of Lady Ackland's Cattleya are of dwarf habit. They grow with slender stems 3-8 in. (7.6-20 cm.) high, depending upon the light, and produce a pair or three, often red-speckled, rounded and fleshy leaves 2-3 in. (5-7.6 cm) long. The peduncle is one or two flowered, and appears without a sheath. The flowers are 3-4 in. (7.6-10 cm.) across and are olive-green, blotched or spotted with dark purple. The lip is magenta to deep purple, marked with darker veins and has white edged side lobes that curl up but do not enclose the column. The exposed column is broad and dark purple at the tip and lies closely appressed to the lip. The flowers are very fragrant and may bloom from April through July as growths mature. The plants of this species do well if grown in baskets or on cork or tree fern slabs near the glass. Their thick roots, well attached to the bark or basket, delight in an exposed environment. They need generous light and Fig. 2. Cattleya aclandiae
Description of Species 3 7 warmth, a humid atmosphere and ample moisture during growing periods but dry conditions during resting periods. According to older literature, new growths and flowers are not unusual twice a year, once in spring and again in the fall. However, Hamilton's data show most plants typically bloom once a year peaking in May. It is native in the State of Bahia, Brazil, where it grows near the ocean. Plants grow on small trees scattered over arid lands with much heat and light but over which moisture laden air blows. The species was dedicated by Dr. Lindley to Lady Ackland of Killer- ton, England, in whose husband's greenhouses it was introduced in 1839. Plants flowered the following year. Various cultivars (varieties) have been described and named for their particular spotting patterns, and for "alba" base colors rather than the usual olive-green. "Blue" forms are also known with mauve instead of the usual magenta-purple lips. Most of the early named forms are no longer in cultivation, but old illustrations and descriptions give us a good idea of the range of variation in the flowers of this species. At present, large flowered intensely pigmented clones are particularly desired even though they may produce no more than a single flower in their seedlings. They are desirable as parents to produce miniature hybrids of a vigorous, tolerant growth habit and with flowers of heavy substance, dark colors and interesting spotting patterns. After mastering the cultivation of this small but fascinating species, one could specialize in only its hybrids and still have space in a small greenhouse. Amethyst-lipped Cattleya Brazil Cattleya amethystoglossa Linden and Rchb.f. ex Warner. 1862. Select Orchidaceous Plants 1.1. 2. Subgenus: Falcata Section: Guttatae Synonyms Cattleya guttata prinzii Rchb. f. 1856. Bonpl 4:327. Epidendrum amethystoglossum Rchb. f. 1861. VJalp. Ann. Bot. 6:319. Epidendrum elatius prinzii Rchb.f. 1862. Xen. Orch. 2:173, t. 172. Cattleya guttata keteleerii Houllet. 1875. Rev. Hort p. 350, t. Cattleya guttata lilacina Rchb.f. 1881. Gard. Chron. 16:38. Cattleya purpurina Barb. Rod 1882. Gen. et Sp. Nov. 2:158. This species has a complicated nomenclatural history that is well explained in Fowlie (1977), so that we will be happy to call it by its common name, the Amethyst-lipped Cattleya. Plants produce stems up to 40 in. (100 cm.) high, making it one of the tallest of the cattleyas. Full grown specimens may produce as many as 30 flowers, though 6-8 are common. The 4 in. (10 cm.) flowers are basically an ivory-white, or occasionally a creamy color, while the sepals and petals are suffused with light rose and spotted with rich magenta, especially on their upper halves. The lip is a deep amethyst-purple and has a granular texture on the tips of the lateral
38 The Cattleyas I Fig. 3. Cattleya amethystoglossa lobes and the midlobe. It flowers easily, usually from February to April, and may bloom again in the fall. Plants of this species require greater warmth and light than most other cattleyas—similar to G aclandiae. They like ample water while growing, followed by a definite period of dormancy. This species first appeared in the collection of Reichenheim in Berlin, G ermany, and was dedicated at his request to Prinz, who had sent the plant from Brazil. Its first English appearance was in the collection of F. Coventry near Southhampton, England, from which the plant subsequently went to the collection of Robert Warner in 1860. Variation in the coloration of the flowers has led to cultivar distinctions: 'Sanderae' is a creamy white base color, and there are also rose and lilac tinted cultivars. Some coerulea clones have been described; and also some polyploid forms with unusually heavy flower substance are in cultivation, the latter resulting by chance in mericlone propagation. The species, like C aclandiae, comes from coastal Bahia and Espirito Santo in Brazil. It grows on rock outcrops and on palms in full sunny exposures, enjoying warmth and humid air. Fowlie notes that G amethystoglossa 'Pinkie', cultivated especially in California, is not a variety of this species. Such plants are really natural hybrids from Brazil and are properly called G wilsoniana. They are likely derived from combinations of C bicolor and C. harrisoniana.
Description of Species 39 Araguaia Cattleya Brazil Cattleya araguaiensis Pabst. 1967. Orquidea 29:62-66. Subgenus: Stellata This species, described only in recent years by Pabst, is poorly known but distinctive in appearance. One wonders why it took so long to be discovered and how large the natural population might be. It is usually single- leafed, and the plants are of slight habit 7-8 or 10 in. (18-25 cm.) high, and look like a larger cattleya in miniature. The 3 in. (7.5 cm.) pseudobulbs are thin so that at a quick glance one could think that they saw a large pleurothallid. The leaves are about 1 % in. wide (4.5 cm.) and about 4 in. (10 cm.) long. One or two unusual olive-brown and white flowers appear in the summer. The sepals and petals are narrow, as in a Brassavola flower, and are greenish brown with darker stripes between the veins. The white lip rolls about the column with the lateral lobes scarcely indicated by small notches. There are brownish orange veins deep in the throat, set off by the white, then there is a distinct band of orange-brown color shading to a greenish apex. There is occasionally a faint purple flush or central mark upon the tip of the midlobe. The central veins are somewhat raised, but not enough to be called keels. The flowers are small or medium in diameter, 2-3 in. (5-7.5 cm.), but are in proportion to the size of the plants. One might well wonder if this species is a chance hybrid of some sort, and the question has been raised. But this seems unlikely based on the Fig. 4. Cattleya araguainiensis. Photo by Marsh
40 The Cattleyas I somewhat distinctive combination of characteristics possessed by the species. We wait with considerable interest a selfing or sib crossing of plants in cultivation (this has been done already, but not yet flowered) so that the variation of an entire population may be studied. The advantages of using this species as a parent remains to be explored. In coloration and with a lip pattern nearly without sinuses to delimit the lateral lobes, it is reminiscent of and closest to C iricolor from the Andean areas of Peru and Ecuador as they face Brazil. Also, its monofoliate character is similarly an "Andean quality7'. We have as yet no definite cultural information for this species, but it appears to grow well under damp intermediate to warm conditions. Braem says it needs moist warm conditions to match its habitat on the Araguaia River in eastern Brazil. Since the plants are delicate in habit compared to other more massive cattleyas, they need time and care to reestablish and recover from transplanting. Orange Cattleya Mexico, Guatemala, El Salvador, Honduras Cattleya aurantiaca (Bateman) Don. 1840. Flor. Jour., p. 185. Subgenus: Circumvolva Section: Aurantiacae Synonyms Epidendrum aurantiacum Bateman ex Lindley. 1838. Bot Reg. 24:8, misc. 11. Epidendrum aureum Lindley. 1853. Folia Orch. Epid. 4. This species has the smallest flowers in the genus, IV2-2 in. (4-5 cm.), but they are among the brightest in color of all the cattleyas. Since Cattleya was separated from Epidendrum by Lindley in 1826 because of "large" flower size, this species has been shifted back and forth between the two genera several times. Cattleya is the currently preferred disposition for these plants and is officially accepted as the proper name in hybrid registrations. A tolerant species, the plants are easy to grow, having 6-15 in. (15-38 cm.) stems with two leaves producing as many as 8-12 flowers in a head or cluster. The color varies from yellow through a deep red-orange with red or purple veins running from the throat out onto the pointed lip. The stems (ramicauls) are enlarged from a narrow base, making the species readily distinguishable from those of Cattleya skinneri. The petals and sometimes the sepals have a tendency to project forward so the flowers do not fully open, and some clones regularly self- pollinate without opening at all. This quality sometimes seems enhanced by high temperatures that promote rapid dehydration of flower parts, and in particular the rostellum, so that pollen and stigma make contact. These are, needless to say, undesirable horticultural traits, and as might be expected, are strongly inherited if great care is not taken in using a good form of this species as a parent for hybrids.
Description of Species 41 Fig. 5. Cattleya aurantiaca 'Miami' There are no lateral lobes as such on the lip, the edges merely rolling around the column—a characteristic of all Central American Cattleya species. The orange color of the flowers is fortunately dominant, a major reason for its use in hybridization, producing rich colors in the yellows, oranges and reds. The vigorous growth habits are also inherited so that aurantiaca hybrids almost always make good plants for the beginning orchid grower, or for naturalizing in subtropical areas. A 5 0<t plant I bought 20 years ago still thrives on a friend's grapefruit tree in a Miami backyard where it was tied. This species was introduced by George Ure-Skinner into England from Guatemala in 1835 as an Epidendrum. It was described as growing on exposed rocks, or on trees, in areas of both extreme heat and cold, thus making it a tolerant and readily grown plant in cultivation. The many color and form variations have produced a spattering of varietal names which really indicates that some of the plants are actually clones of C. guatemalense. It was earlier noted that plants of C. skinneri grew on the same trees and that the two species sometimes formed a natural hybrid that was called Epicattleya (the first such hybrid) guatemalensis. Please see more on this species under Cattleya guatemalensis, as well as comments in the chapter on introgression.
42 The Cattleyas I Fig. 6. Cattleya aurea. Photo by Kothuber Golden Yellow Cattleya Colombia Cattleya aurea Linden. 1881. Illus. Hort 30:125 t. 493. Subgenus: Cattleya Section: Xantheae Synonyms Cattleya dowiana aurea Williams and Moore. 1883. Orchid Album II: t. 84. Cattleya labiata dowiana aurea Veitch. 1887. Manual Orch. Plants, Cattleya, p. 16. Cattleya dowiana chrysotoxa Hort. 1890. Reichenbachia, Ser. II, t. 80. Cattleya chrysotoxa Hort. 1891. Orchidophile p. 320. This cattleya has a complicated nomenclatural history, as do several others in the labiate category, since it has been considered both a separate species and as a variety of other species. Based on its segregated geographical distribution, it is considered a separate species in this book. We can imagine that an ancient original population of yellow-flowered ancestors in the Andean regions gave rise to our present-day species, G dowiana in Costa Rica, G aurea in Colombia and G rex in Peru. Other yellow cattleyas with carotenoid coloration, C luteola, G iricolor, C aurantiaca, also originated in Andean regions or in the mountainous continuation of that habitat into Central America and Mexico. The vegetative and floral characters of C aurea are similar to Cattleya dowiana, its closest relative, but the sepals and petals are a deeper primrose- yellow, usually clear and not marked with the crimson feathering or
Description of Species 4 3 picoteeing of dowiana, and the veining of the lip is more extensive and anastomosing. Usually there are prominent yellow "eyes" on the lip, lacking in its dowiana cousin. The same "eyes" are also present in some of the lavender labiate cattleyas, particularly G warscewiczii, but are more noticeable here. The plants of this species bloom in the late summer or autumn. Gustav Wallis discovered it in 1868 near Frontino in the State of Antioquia, Colombia, while he was collecting plants for Linden. It was found again by Butler, four years later, while collecting for Messrs. Backhouse of York, England. This species is freer flowering than C. dowiana, and deserves to be cultivated again in quantity from seed, both for conservation and to recover some of the fine flower forms, as illustrated in the old color plate books, that were once available for breeding. At the beginning of this century it was described as relatively common in collections, but that is no longer true. In fact, many orchid growers today have never seen a plant of aurea in flower. It is comparatively hard to grow and is best divided or repotted in summer. It likes a well-drained compost or bark mixture, ample light and air circulation and fairly even temperatures. Growers recommend moderate watering while the plants are in active growth, less water until the buds form in the sheath, and watering again as the flowers open. The plants should be watered sparingly when not in growth. In the old books it was always recommended that the plants be hung near the glass, which, of course would best supply the required warmth, air and light. This cattleya hybridizes introgressively in the wild with G warscewiczii to produce the variable and lovely G hardy ana. The latter varies from white to lavender and many fine clones, now lost to cultivation, were once described and grown. They are all characterized by the fine colored lip with prominent yellow "eyes" and are easier to grow than the yellow parent. In the older literature and in the breeding records this species was often lumped with G dowiana so that today we cannot always be certain, whether dowiana or aurea was actually used in hybrids or referred to in articles. There is additional discussion under G dowiana. Fig. 7. Cattleya aurea varieties. Lindenia, plate 598/599, 1897.
44 The Cattleyas I. Bicolored Cattleya Brazil Cattleya bicolor Lindley. 1836. Bot Reg. 22: sub. t. 1919. Subgenus: Schomburgkoidea Synonyms Epidendrum iridee Descourtilz. 1821. Flore medicale des Antilles, p. 629. Epidendrum bicolor Rchb. f. 1861. Walp. Ann. Bot 6:311. Cattleya grossii Kranzlin. 1897. Gartenfl. 46:113, t. 1436. The stems of this species run 18-30 in. (49-76 cm.) high, jointed in the usual fashion and clothed in membranous sheaths. There are two leaves about6in. (15 cm.) long. The 3-10 fragrant flowers are 3-4 in. (7.6-10cm.) in diameter and are variable in color. The fleshy sepals and petals range from pale green or olive to a coppery brown tone, and the flowers may be spotted. The lip is crimson-purple to pale rose, sometimes margined at the edge with white, and uniquely has no side lobes to cover the column. The latter is a dominant characteristic of this species, and is strongly passed on to its progeny, making at least that part of the parentage fairly readily detectable. The exposed column is pink. Descourtilz named it after Iris, the rainbow goddess. He must really have been swept away by the flowers. The plants bloom in September, like warmth, light, water when growing and then require a good rest. Repotting should be attended to only when new roots appear at the base of the lead growth. As in dealing with other bifoliate types of cattleya that may have thin stems without much water storage tissue, repotting is only done at that time. If repotting is done on other occasions, it may so shock the plants that they are set back so they may remain dormant for more than the next growing season; or, they may dehydrate to a point that recovery is difficult or impossible. Irrespective of what else the plant may be doing, growing or forming buds, the rooting process is critical and must be respected. The species was originally introduced by Messrs. Loddiges of Hackney, England, in 1838, who received it from the area around Bananal in the State of Minas Gerais, Brazil. It was found growing in large clumps high on tall trees along rivers. It was also found in the mountains of Rio de Janeiro at 200 ft. (60 m.) elevation, growing on rocks as well as trees. Both Fowlie, and then Braem, describe two distinct populations of this species, although Fowlie also distinguishes a third. Coastal plants, comparable to the originally described species, are diploid. There are also the tetraploid interior forms which are technically described as G bicolor subspecies minasgeraisensis by Fowlie. The latter plants are larger in all dimensions than the diploid coastal clones, and the population includes the variation that has been named G grossii or C. bicolor var. grossii. These forms are characterized by a more expanded kidney- shaped midlobe on the lip and usually a white margin on the front edge. The third population is the subspecies brasiliensis, described and pictured by Fowlie. It has deep brown flowers with a larger, wider lip than ordinary and virtually no white, though the margin of the lip is paler than more central areas. The sepals and petals are somewhat undulate in the fashion of C.
Description of Species 4 5 Fig. 8. Cattleya bicolor elongata. The plants may reach 4 ft. (122 cm.) in height. This subspecies grows on rough-barked, gnarled trees in heavy swamps near Brasilia at an altitude of 3700 ft. (1110 m.). This race may well be involved with G tenuis, a recently described taxon, which is close to both C bicolor and C elongata. The subspecies population named brasiliensis should not be confused with C. brasiliensis, a natural hybrid of presumably, G bicolor and G harrisoniana. These hybrid plants come from the Rio Doce, according to Fowlie, and have been mistakenly labeled C amethystoglossa 'Pinkie' in cultivation. Several distinct color forms have been described in the bicolor complex. The so-called alba is apple-green with a white lip. Plants have been selfed by one commercial grower for the last three generations, all plants bearing the green flowers. Particularity spotted clones, coerulea or blue forms, plants with darker lip colors and greater or lesser white markings (really making a tricolor of the species!), have been described as named varieties. They coincide nicely with the spectrum of variation to be found in this species.
46 The Cattleyas I Bo wring's Cattleya Belize, Guatemala Cattleya bowringiana Veitch. 1885. Gard. Chron. 2:683. Subgenus: Circumvolva Section: Moradae Synonyms Cattleya autumnalis Hort. 1885. O'Brien in Gard. Chron. 24:683. Cattleya skinneri var. bowringiana Kranz. 1892. Xenia Or. 3:82, t. 245. This species is of a strong and easy growing nature with stems to about 24 in. (61 cm.) tall producing two or more thick leaves. The pseudo- bulbs are characteristically swollen at their bases from which the roots all emerge. Leaves are 6-8 in. (15-20 cm.) long. Five to twenty flowers are borne on the stem, each from 2-3 in. (5-8 cm.) wide. The sepals and petals are of light substance and are uniformly rose-purple with rarely more Fig. 9. Cattleya bowringiana
Description of Species 4 7 deeply colored veins and reticulations. There is often a glistening satiny texture when the flowers are viewed in a good light. The lip is a deeper purple with a brighter more maroon band toward the throat which, in turn, is white. Plants of this species regularly flower in the fall or early winter, hence one of its names, autumnalis. This is a good species for the beginner, one of the best, as it is tolerant of heat, sun, and poor humidity. In fact, the plants must have bright conditions for best growth. Furthermore, even small plants will bloom with one or two flowers, the number increasing as the plants become larger. In nature, the plants are found on rocky cliffs by rapid streams where the atmosphere is usually charged with moisture. It was introduced by Veitch and Sons in 1884 and dedicated to J. C. Bowring, an amateur grower, living near Windsor, England. A general similarity among clones has precluded many varietal descriptions, but there are a few. The clone 'Triumphans' is a deeper purple color than usual and coerulea forms are blue mauve, the successful parents of many blue orchids, including selfings. The variety 'Splendens' is presumably a tetraploid form with larger and more richly colored flowers than the type, and 'Kay Francis' was a rosy pink type. The species is famous as a parent of a variety of modern vigorous bifoliate cluster-flowered hybrids, and C. Portia by Veitch in 1897, one of the very first, is still grown both in its blue as well as its usual color phases. I have not yet heard of an alba form of this fepecies, but it would be very much in demand were it ever to be discovered and could trigger a whole new line of white cattleya breeding. A variety albescens 'Tower Grove' CBM, AM/AOS has faint color on the lip. Decker's Cattleya Guatemala to Panama, Colombia, Venezuela and Trinidad Cattleya deckeri Klotsch. 1885. Allgem. Gartenz. 23:81. Subgenus: Circumvolva Section: Moradae Synonyms Cattleya skinneri var. parviflora Hooker. 1856. Bot. Mag. 82, t. 4916. Cattleya patinii Cogn. 1900. Dist Icon, des Orch. t 25. Cattleya skinneri var. patinii (Cogn.) Schltr. 1914. Die Orchideen, p. 227. Cattleya skinneri var. autumnalis Allen. 1942. Ann. Mo. Bot. Gard. 29:345. This fall flowering species, generally similar to and often confused with C. skinneri, as all of the synonyms indicate, is easily distinguished when in flower. It is not spring-flowering at all; and clearly displays notable color differences in the lip. The plants grow to 10-12 in. (26-31 cm.) and produce up to eight 3 in. (8 cm.) lavender flowers. The lips are a deep orchid-purple, with no yellow or white markings in the throat as in C. skinneri—a clear-cut distinction supported by autumn flowering. In addition, the flowers seem to be slightly smaller than the typical Skinner's Cattleya. The plants tend toward multiple lead production, so they can easily be grown as specimen plants.
48 The Cattleyas I The distribution of this species is concentrated in Panama, growing from sea level to about 3000 ft. (900 m.). It apparently spread from an Andean origin north into Panama and adjacent regions and east through the Andean extensions of Venezuela into what is now the island of Trinidad. This widespread distribution makes it the only Cattleya species found in both South and Central America, the others being more confined in their distribution patterns. In Panama it is typically found growing in a tree called Espave (Anacardium excelsum), according to Dunn in an article in the Orchid Journal for 1952. This tree grows primarily along banks of rivers, and its foliage is deciduous at the time this orchid is dormant, thus helping the bulbs to "ripen" for the coming year. The plants sometimes grow on rocks under scrubby brush, often with xerophytic vegetation. The active growth period extends from May to November and the flowering season from September through the latter part of October. It is seldom seen in collections and is usually mislabeled when found. One wonders whether it, like fall flowering C. labiata, might also be day length sensitive and would respond to light control for its flowering. No varieties of hybrids are known to the author. It is called Guaria Solo in Costa Rica, where cleistogamous forms may be found. Fig. 10. Cattleya deckeri 'NGONY'. Photo by Marsh
Description of Species 4 9 Fig. 11. Cattleya dolosa Dolose Cattleya Brazil Cattleya dolosa (Rchb. f.) Rchb. f. 1876. Gard. Chron. 5:430-432, figs. 78,79. Subgenus: Intermedia Synonyms Epidendrum dolosum Rchb. f. 1862. Xen Orch. 2:224 Cattleya eximia Barb. Rodr. 1877. Gen. et Sp. Orch. Nov. 1:70. Cattleya walkeriana var. dolosa Veitch. 1887. Man. Orch. Plants, Cattleya, p. 50. This species has been the source of much confusion and is not common nor really understood, and is I suppose debatably included in this book as a species. It has usually been considered a natural hybrid of or between G walkeriana and G loddigesii or C harrisoniana but attempts to duplicate it in cultivation have failed to date, according to various unsubstantiated reports. In this regard it is unlike C. brasiliensis, a natural hybrid that has been duplicated in cultivation. It is certainly deserving of further study for use in hybridizing, and should be cultivated more frequently
50 The Cattleyas I Fig. 12. Cattleya dolosa. Original illustration, Gardener's Chronicle, April, 1876. since it appears to be a rare species in nature. I know of no available plant at the moment that is available to study. If it is a hybrid of walkeriana and loddigesii, which occurs with walkeriana, it will likely require at least two hybrid generations, not one, to duplicate in cultivation. The first between the two species, and the second a backcross to the loddigesii. Introgression processes must be kept in mind. If it is a hybrid with harrisoniana, that combination is called C Heathii, and was registered by Heath in 1907. There are one or two flowers about 3-4 in. (8-10 cm.) across produced in the fall on dwarf plants. The stocky plants are about 6 in. (15 cm.) high with one or two thick oval leaves, the whole giving an impression of toughness. The plants always bloom from the tips of the pseudobulbs, not from separate growths as does C. walkeriana. The sepals and petals are a rosy lavender with a satiny sheen. The lip has creamy white, turned-back, lateral lobes, with yellow shadings over the central, corrugated veins. The midlobe is a dark red-purple along the front edge. A plant was first sold at Stevens' Rooms, in London, England, mistakenly as Laelia jongheana with which it had been imported in 1872 from Minas Gerais, Brazil. The name dolosa in Latin means crafty or deceitful and seems to fit its obscure nature well. More recently it is also described as native to certain regions near Sao Paulo, but it is still a rarity. It thus originated in central Brazil where it grows on limestone outcroppings. Though originally described as an Epidendrum, Reichenbach reclassified it as a Cattleya. Cattleya dolosa crossed with C. walkeriana produces a natural hybrid, G obrieniana, described first by Rolfe in 1895 in the Orchid Review. In recent years this hybrid, the plants of which may date back to original clones in cultivation, in its white (alba) form has been used in further hybridizing, but very little is known about it or its actual origins, or whether there has ever been more than one clone in cultivation. Obviously, the cross should be remade whenever it becomes possible, and the species should be relocated, raised from seed and studied.
Description of Species 51 Fig. 13. Cattleya dormaniana Dorman's Cattleya Brazil Cattleya dormaniana (Rchb. f.) Rchb. f. 1882. Gard. Chron. 17n.s.,p. 216. Subgenus: Laelioidea Synonyms Laelia dormaniana Rchb. f. 1880. Gard. Chron. 13 n.s., p. 168. Laeliocattleya dormaniana Rolfe. 1889. Gard. Chron. 3rd s. 6:79. The flowers of this species are famous for producing two or four extra rudimentary pollinia in addition to the four normally found in plants of this genus. This characteristic has resulted in the species being considered both a Laelia or a Laeliocattleya hybrid. Laelias normally form eight pollinia. But finally, whatever the number, most agree that the species is a Cattleya, and the underdeveloped pollinia have some evolutionary significance relating to the origin of the species, if we only knew what it was! The 3 in. (8 cm.) flowers have olive-brown sepals and petals veined with purple, and margins somewhat undulate. The lip has pale rose-purple side lobes with purple veins, and the lobes completely cover the column.
52 The Cattleyas I They are long in proportion to the length of the midlobe, which produces a distinctive lip with an unmistakable proportion. The midlobe is a dark purple with a white throat. The plants have a thin, almost reed-stemmed habit, growing about 12-15 in. (30-39 cm.) high with two or three leaves. One, two or sometimes four blossoms are produced in the fall. It was discovered in 1879 on the mountains in Rio de Janeiro, Brazil, by Henry Blunt who sent the plants back to England. It is named for Charles Dorman of Sydenham, England, in whose collection it first flowered in 1880. Reichenbach first thought it to be a natural hybrid of Cattleya bicolor and Laelia ipumila, but this idea has long since been discarded. It was formerly rare in collections but is now found fairly often. Coming from the humid cloud-topped Organ Mountains, it likes good air and some warmth while growing, but it needs a definite period of dormancy. However, the thin stems do not tolerate much dehydration, so keeping good roots on the plants is of prime importance in successful culture. Many feel it is best grown on slabs of cork or tree fern. Few varieties or hybrids are known. DoVs Cattleya Costa Rica Cattleya dowiana Batem. 1866. Gard Chron., p. 922. Subgenus: Cattleya Section: Xantheae Synonyms Cattleya labiata var. dowiana Veitch. 1887. Man. Orch. Plants, Cattleya, p. 16. Cattleya lawrenceana Warsc. fide Rchb. f. 1883. Gard. Chron. 19:243. Plants of this species, the Guaria de Turrialba or Guaria Reina, produce usually 2-3 flowers, though as many as seven may be formed, which are 5— 7 in. (13-18 cm.) across. The sepals, and the petals which are twice as broad, are of a nankeen-yellow. Today that term may not mean much, but in earlier days it possessed an immediate connotation deriving from a Chinese raw silk fabric of a particular yellow color. The petals are often flecked at the base and along the margins and suffused on the undersides with crimson. The large, broad lip is a deep velvety crimson-purple veined with gold. The plants bloom toward the end of summer or in early autumn. G dowiana needs more warmth than most of the cattleyas and likes a great deal of moisture in the spring and summer, with considerably less in winter. It also requires ample light and consequently will do well suspended near the glass. This species was first discovered by Warscewicz in Costa Rica about 1850. Plants sent Messrs, Low and Co. in England died, and dried specimens sent to Reichenbach in Germany never arrived. As a result, there was considerable doubt that these handsome flowers as described in the collector's letters, ever existed. Warscewicz requested at the time that the plant be named in honor of Mrs. Lawrence of Ealing, England, a liberal
Description of Species 5 3 Fig. 14. Cattleya dowiana. Closeup of lip. patroness of orchid culture and orchid collectors. Bateman was not aware of this when he described it as Cattleya dowiana in the Gardener's Chronicle years later. Nevertheless, it was also eventually named G lawrenceana, in 1885, but that in honor of Sir Trevor Lawrence, not this lady of Ealing. Mr. Lager refers to it as Cattleya occeus, though I cannot presently find the origin of that name and therefore its status. The species was rediscovered in 1865 by Arce, a native naturalist,
54 The Cattleyas I who was collecting in Costa Rica for George Ure-Skinner. Ure-Skinner requested that the plant be named after Capt. J. M. Dow of the American Packet Service, who had taken the plants to England. Veitch and Sons then acquired some of the plants and first flowered them in the autumn of 1865. The habitat is said to be restricted to an area on the western slopes of the central mountain range where the plants today have become scarce. Horich describes the area and its high rain forests in detail. Standley noted that it grew in upland forest that covered the great plains of Santa Clara and San Carlos—"all the branches of the trees so high overhead that one can form no idea of the foliage." A great number of color forms were described in early collections, and pictured in the old color plate books, but they no longer exist. There is hardly a better species for conservation-minded orchidists to increase in cultivation than this, and if undertaken perhaps some of the old color patternsvwould turn up again as valuable parts of this species' gene pool. Variety 'Rosita', for instance, had creamy white sepals tinged with purple and rose-purple petals tinged with yellow. Horich has refound a plant of this rare color pattern and it has been mericloned. Armacost and Royston (Stewart7s) have recently grown C. dowiana from "wild" seed collected by Horich in Costa Rica, a commendable step that could be repeated with other species. Early orchid growers must have found these yellow cattleyas irresistible. By the time the Sander's List of Orchid Hybrids was compiled in 1946 there were nearly 400 crosses already registered, almost twice as many as for any other species. However, Sander made no distinction Fig. 15. Cattleya dowiana. Plate 5618 from Curtis's Botanical Magazine, 1867.
Description of Species 5 5 between G dowiana and C aurea, so that we cannot be certain of the exact numbers, even though plants of C. dowiana were generally available in cultivation before plants of aurea. Nevertheless, it is safe to say that yellow will win over purple any day! Growing more seedlings in cultivation might also lead to clones of easier culture than the usual run of rare wild plants still in cultivation. In any case, collected plants today are unavailable, so that selfings or sibling crosses remain our best bet, and we should all learn to grow this demanding species that requires warmth, humidity and good light. Under C aurea some remarks on its breeding behavior compared to that species may be found. Cattleya of the Golden Land Brazil Cattleya eldorado Linden ex Van Hout. 1869. Van Route's Fl. des Serres 18, t. 1826. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya virginalis Linden and Andre. 1876. Illus. Hort 23:161, t. 257. Cattleya trichopiliochila Barb. Rodr. 1877. Gen. etSp. Orch. Nov. 1:70. Cattleya wallinsii Linden and Rchb. f. 1882. Gard Chron. n.s. 17:557. Cattleya macmorlandii Nichols. 1885. Dist. Gard 1:282. Cattleya crocata Rchb. f. 1886. Gard Chron. n.s. 26:360. Cattleya labiata var. eldorado Veitch. 1887. Man. Orch. Plants, Cattleya, p. 17. Cattleya guadricolor var. eldorado Morren and Devos. 1887. Index Bibl. Hort. p. 183. The 5-6 in. (13-15 cm.) flowers of this species are a delicate white tinted with pale rose. The lip is white at the base, where it closely encloses the column, and a rich orange-yellow or golden disc is distinctly noticeable in the throat. The rest of the lip is white-edged and sometimes has a spot of purple magenta in the front. There is a greater occurrence of white clones in this species than in any other Cattleya species. They are so distinctly numerous as to be common, likely accounting for one of its early names, C virginalis. The plants tend to be smaller than the other labiate forms of cattleyas with their single leaves. Flowers appear in July, August and September in the Hamilton survey of blooming times. The habitat of this species is the interior Amazon region where it is hotter and more humid, and the alternation of wet and dry seasons is more pronounced, than are the regions in which the other large flowered cattleyas grow. It grows along the Rio Negro, the Black River, which is colored by the tannins and other compounds derived from the swamp vegetation through and around which it flows. The confluence of the Rio Negro with the Amazon is both startling and famous, for the mixture of the two rivers can be followed by their differences in color. Plants were first imported from Brazil into Europe by Linden in about 1866, and one in flower was exhibited by him in Paris in 1867 under the
56 The Cattleyas I Fig. 16. Cattleya eldorado name C eldorado. Literally, this means "the golden" and was a name given by the Spaniards in the 16th Century to the interior of South America between the Orinoco and Amazon Rivers where riches in gold were presumably to be found. The name was probably given the species in allusion to the rich golden color on the lip. The plants remained scarce until a Belgian collector, Binot, sent back plants in 1876, and the species became gradually distributed in collections. Binot stayed on in Brazil, founding the now well known firm, Orquidario Binot, from which, after four generations in the same family, we may still reliably obtain the fascinating Brazilian species, many now being grown from seed to supply continuing demand. A variety 'Splendens' was darker colored, particularly the deep violet purple edge of the lip; 'Ornata' had a purple blotch at the tip of each petal; and 'Virginalis' was snow-white with the orange on the throat the only color. These are all within the usual range of the species. G brymeriana is a rare natural hybrid between this species and C. violacea, both species growing in the same area and enjoying the heat and humidity of the river lowlands. The hybrid came from Essequibo, Brazil. Braem in his book points out that this species should be properly called C. trichopiliochila, and that there was not a correct description of C. eldorado when the name was first published in Van Houte's Magazine. Therefore, the later Barbosa Rodrigues name should be the valid one. It is listed here under its older name, nevertheless, until the alternative situation is resolved. Braem does not discuss G virginalis as another alternative name, though it too was published before the G trichopiliochila of Barbosa Rodrigues.
Description of Species 5 7 Fig. 17. Cattleya eldorado 'Virginalis'. Orchid Album, plate 388, 1901. Cattleya with the Elongated Stalk Brazil Cattleya elongata Barb. Rodr. 1877. Gen et Sp. Orch. Nov. 1:72. Subgenus: Schomburgkoidea Synonym Cattleya alexandrae Linden and Rolfe. 1892. Gard. Chron. 3rd s. 11:522 The plants of this species produce 3 in. (8 cm.) flowers with wavy edged sepals and petals, similar in configuration to those of Schomburgkia flowers. The flowers are deep brown-red to greenish rose in color and are occasionally spotted. The lip is a brighter rose and has some white at the base with occasionally a yellow flush in the central areas. The large 2 ft. (62 cm.) plants further show their schomburgkia-like qualities by producing three leaves and an elongated flower stalk, noted by the name of the species. They are late summer blooming and produce 6-8 or more flowers on the upright stalk. The plants are light-loving and found on rocky outcroppings with their red tipped roots delving deep into the cracks and crevices where moisture is maintained. Unlike most cattleyas, they have the ability to produce offshoots along their stems (ramicauls). On most species these buds are undeveloped and never grow, but on G elongata pseudobulbs they have not lost that ability, whatever its adaptive significance may be. Though the species had already been described by Barbosa
58 The Cattleyas I Fig. 18. Cattleya elongata Rodrigues in 1877, plants did not reach France from Bahia until 1892. Plants imported to England were named C. alexandrae, and afterwards were found to be the same as those already present in France. Braem states that the species is found on the tributaries of the Rio Sao Francisco in western Bahia, northern Minas Gerais and Pernambuco, Brazil. A few color variations have been described in the horticultural literature including an "alba" with yellow-brown sepals and petals and a white lip. The recently described Cattleya tenuis is closely related and shares several of this species' characteristics—tall vigorous plants, the ability to be propagated from the canes and the overall color and configuration of the flowers. Their close relationship remains to be resolved as natural hybrids have been collected though, to my knowledge, not yet named.
Description of Species 59 Forbes' Cattleya Brazil Cattleya forbesii Lindley. 1823. Coll. Bot sub t. 33 Subgenus: Intermedia Synonyms Epidendrum pauper Vellozo. 1825 (1790). Fl Flum., 9, t. 13. Maclenia paradoxa DuMort. 1834. Hort Beige 2:198, pi. 44. Cattleya vestalis Hoffmans. 1843 Verzeichn. der Orch, p. 46. Cattleya fulva Beer. 1854. Pract Studium Fam. Orch, p. 210. Cattleya isopetala Beer. 1854. Pract Studium Fam. Orch., p. 211. Epidendrum forbesii Rchb. f. 1861. Walp. Ann. Bot. 6:316. Cattleya pauper (Vellozo) Stellfeld. 1949. Arq. do Mus. Par an. 7. The least beautiful of the genus, say some, but this species has a long history and many synonyms. It is still cultivated because of its strong- growing and free-flowering qualities. It is a good species for the beginner to try because of its tolerant habits and small size. The thin stems are 12-15 in. (30-39 cm.) high with two leaves. Peduncles are 2-5 flowered, and the flowers are 2V2-4 in. (6.1-10 cm.) across. The sepals and petals are a pale yellow-green to a muddy tan color so that it pays to select carefully the clones that one grows on. The green types have been used for producing some green hybrids, such as Blc. Green Tea or Shanghai Jade, and yellow forms of other hybrids. The lip midlobe is Fig. 19. Cattleya forbesii. Photo by Ellis
60 The Cattleyas I short though frilly on the edges, so it is wise to hybridize this species with other forms having larger lips. Otherwise, the dominance of the forbesii lip with its small size comes through. The white lateral lobes of the lip and the internal, strong carmine, veining patterns are also dominant qualities in its role as a parent. The basic color of the lip is white, but internally it is pale yellow with the veining and central streak a strong yellow. The column is yellow, spotted and stained with red. It grows on trees and rocks, or on bushes under trees, together with G harrisoniana, near the sea in the vicinity of Rio de Janeiro and south toward Sao Paulo, Brazil. It thus grows in a hot and humid environment mediated by sea breezes. The plants flower in spring and summer with a peak extending from April to July, according to Hamilton. The natural hybrids of G forbesii and C harrisoniana are C venosa. Where it contacts C leopoldii they are C isabella. It was introduced by the Horticultural Society of London, England, in 1823, through their collector Forbes, whose name it bears. Actually, Vellozo described it as Epidendrum pauper in 1790, but his work was not actually published until much later, 1825, after C forbesii was already established as the name. It is thus one of the first species of this complex to be described, together with G elegans and C. guttata. They were all called Epidendrum at the time, as the genus Cattleya had not yet been established. Gaskell's Cattleya Colombia, Venezuela Cattleya gaskelliana Rchb. f. 1883. Gard. Chron n.s. 19:243. Subgenus: Cattleya Section: Cattleya Synonym Cattleya labiata var. gaskelliana N. E. Brown. 1883. Gard. Chron. ri.s. 19:310. Flowers large, sometimes nearly equaling G warscewiczii, the largest flowered species in the entire alliance. The petals and sepals are purple- violet suffused with white. The generally pale color is sometimes deeper and more uniform, and the petals rarely have a central lighter rib. The distinctly trumpet-like lip is similar in color to the petals, though the lower part may be paler. The front edge has a pale rose-mauve crisped margin. The throat is an orange or tawny yellow bordered with a zone of yellow- white in front of which is a mottled patch of rich amethyst-purple. Plants of this species flower in summer from July through September, developing rapidly once the leads start to grow. It is famous for its vigorous growth, the flowers appearing sometimes in less than two months from the breaking of dormancy of the lead bud. It grows well in a cool position and requires less moisture than other cattleyas, being kept practically dry during the resting period.
Description of Species 61 The species was dedicated to Holbrook Gaskell of Woolton, near Liverpool, England, an orchid collector and grower. Originating in northeastern Venezuela it was introduced and named by Messrs. Sander of St. Albans, who first flowered and sold it at Stevens' Rooms in 1883. Varieties include alba with white sepals and petals and a lip creamy white with yellow markings remaining in the throat; semialba types with white sepals and petals and normally colored lips; coerulea forms with pale blue-mauve color, especially one called 'Blue Dragon'; and variety 'Hodgkinsonii', which is white with the front of the lip crimson rather than the usual purple. It must be kept in mind with these varietal designations that they are not botanical varieties in the proper current sense of the term, only horticultural color forms that have been given these epithets. As such, there may be more than one alba form, even half a dozen, all of which may be different clones. Technically, only the first named deserves the varietal name as a clonal designation. All subsequent white clones should be given their own distinctive names, even though they be the same color pattern combination as the original white form. This, of course, leads to four terms in the name, but the term alba could be left out if the clonal designation was sufficiently descriptive. Plants of this species are not often seen in collections today, and it deserves more attention. Late spring or summer flowering cattleyas, however, are of little interest to the commercial grower who wishes large crops for late fall, winter or spring holidays. Private growers will have to fill this gap, encouraging interest in such species by greater sensitivity to clonal forms and the growing of such species. Fig. 20. Cattleya gaskelliana coerulea T)rago' HCC/AOS
62 The Cattleyas I Fig. 21. Cattleya granulosa Granulose Cattleya Brazil Cattleya granulosa Lindley. 1842. Bot. Reg. 28, t.l. Subgenus: Falcata Section: Granulosae Synonym Epidendrum granulosum Rchb. f. 1861. Walp. Ann. Bot 6:319. This is a species which is free-growing with slender, terete, jointed stems up to 20 in. (50 cm.) high. The leaves are 6 in. (15 cm.) long. Flowers are 5-8 in number, 3-4 in. (8-10 cm.) across. The sepals and petals are olive-green to brown with a few scattered small red spots. The lip is orange- yellow toward the base, the color extending out on the isthmus which is heavily marked with crimson, the lip is white externally and surrounds the
Description of Species 6 3 column closely. The isthmus is elongated and distinct, usually one half or more of the total lip length, a distinguishing feature of the species. Its specific name refers to the granules or papulae which cover the front lobes of the lip and often the tips of the lateral lobes as well. It ordinarily flowers in summer from a green sheath as the growth matures. For many years it was reported as coming from Guatemala in 1840, whereas it actually had only been sent from Brazil by Hartweg, via Guatemala, to England. Hartweg sent the plants to the Horticultural Society of London, England without any accompanying information, and thus the controversy arose. Its native habitat is in hot humid places with well-marked seasons. Fowlie (Orchid Digest Sept.-Oct., 1986) describes the typical habitat as rolling hills near swampy areas by the ocean. Summer temperatures vary from 70°s to almost 90°F (23-31°C), and winter values run from 71- 82°F (22-28°C). Late summer, when plants are through flowering and become dormant is cooler but drier save for the humid sea air. In more interior locations at 1800-2000 ft. (600-900 m.) there is more rain and cooler temperatures but temperatures and rainfall do not vary much from season to season, as it is so close to the equator. Summer there is December, lanuary and February. Spring is in September, October and November, the reverse of our northern temperate seasons. Plants bloom in the spring—meaning there from September on. The many described varieties differ in the markings and spottings of the sepals and petals and the brilliance of the lip coloring. Both alba and semialba forms are found. C schofeldiana, once considered a variety, is now treated as a separate species. In the interior habitats flowers tend to be less green, more bronzy, more wingy and with a more intense red purple on the lip. There is also an occasional plant of a wild natural hybrid with C. labiata to be found in the mountains. It is called G he Czar, and the lavender flowers show a general granulosa shape, especially in the lip, with widened petals derived from the labiata influence. Guatemalan Cattleya Guatemala Cattleya guatemalensis Moore. 1861. Fl Mag. 1: t 61. Subgenus: Circumvolva Synonym Cattleya pachecoi Ames and Correll. 1943.Am. Orch Soc. Bull 11:401, pi. 11. A plant of this natural hybrid was sent by George Ure-Skinner to England. He noticed that it grew on the same tree with both G skinneri and C. aurantiaca, so the parentage was in little doubt. It is amusing to note today that Veitch, in his Manual of Orchidaceous Plants of 1887, noted that the plant 'lias long since disappeared from cultivation". Not only are natural examples still eagerly sought and grown today in Guatemala, the combina-
64 The Cattleyas I Fig. 22. Cattleya guatemalensis Fig. 23. Cattleya guatemalensis alba Fig. 24. Cattleya guatemalensis (C. pachecoi)
Description of Species 6 5 tion has also been artificially produced several times in cultivation. The flowers of this hybrid swarm may vary from white through yellow and orange, to salmon, pink, rose, purple and even red. The special colors are highly prized and rewarded with varietal designations. One of the best of all is 'Fuego', a deep bright red, but some of the white or yellow forms are equally striking, especially when grown into specimen plants. The name pachecoi was used for one of the pale lemon-yellow forms, which we realize now is simply one of the color variations in this hybrid swarm. The plants are similar to both their parents which vegetatively look much alike, but the pseudobulbs are not so narrow at their bases as they are in G aurantiaca. We have here a textbook example of introgressive hybridization with hybrids crossing back to either parent or with other hybrid members of the population. Since one parent was called an Epidendrum at the time the hybrid was found, the hybrid became the first Epicattleya hybrid to be noted. By the time Moore published his description, however, the name had been changed to Cattleya. When the flowers of the hybrid population are examined, a whole spectrum of colors is apparent and the characteristics of the two parents are easily noted in various combinations. Some tend to appear more like the skinneri side of the family, having softer, broader petals and a more rolled Fig. 25. Cattleya guatemalensis 'La Libertad'
66 The Cattleyas I lip, all having rosy-purple colors or often salmon colors as well. The more aurantiaca they appear, the narrower the flower segments become, the more pointed and scoop-like the lip appears, the petals tend to project forward and distinct veining occurs in the throat. In addition, the flowers tend toward yellow, white or orangy red colors that reflect the carotenoid components of the aurantiaca flowers rather than the lavender antho- cyanin mixtures of skinneri The origin of the white forms is still a puzzle, since most are more like the aurantiaca parent in other qualities, yet white clones of C aurantiaca per se, have never been described. There is apparently something about the hybridizing and selfing that induces a white flower (as it does in C. hardy ana). At the same time, it is difficult to find any known white clones of the skinneri parent that will consistently breed white and not produce colored progeny. People continue to make crosses to corroborate this phenomenon but such genetic behavior remains for future researchers to discover. More comments are to be found in the discussions of the parental species. Fig. 26. Cattleya guttata. Original illustration, plate 1406 of the Botanical Register, 1831.
Description of Species 6 7 Spotted Cattleya Brazil Cattleya guttata Lindley. 181. Bot. Reg. 17: t. 1406. Subgenus: Falcata Section: Guttatae Synonyms Epidendrum elegans Vellozo. 1825 (1790). Fl Flum. 9. Cattleya elatior Lindley. 1831. Gen. and Sp. Orch. Plants., p. 117. Cattleya tigrina A. Richard 1848. Portfuille des Hort. 2:166, plate. Cattleya sphenophora Morren. 1848. Ann. de Bot. le Gand. 4:17, t. 175. Epidendrum elatius Rchb.f. 1862. Xen. Orch. 2:33. This species produces medium-sized plants with slender stems, from 24-40 in. (60-100 cm.) high when well grown. There are 2 fleshy leaves. The racemes are 5-10 flowered, and the flowers are 2-3 in. (5-8 cm.) across. The sepals and petals are yellow-green, finely spotted deep purple or crimson. The basal part of the lip is white externally, purple veined internally, while the midlobe is amethyst-purple, traversed by several lines of small verrucosities. The isthmus of the lip is short, only about one fourth the length of the lip, thus distinguishing this species from C. granulosa. Further, the flowers are generally greener, smaller and less brightly colored. According to some books, the plants flower in the late fall from dried sheaths formed earlier the same summer as the growths matured. Hamilton's data indicate, however, a July flowering peak, but the spread of this data is no doubt confounded by the continued confusion of this species with others, especially C leopoldii. G guttata is a warm-growing species, requiring at least 55°F (16°C) in the winter during dormancy, and preferring warmer, wetter conditions in its development phase. The typical species, not very attractive to the beginner's eye, with green flowers small in relation to the larger size of the plants, was sent to the Horticultural Society of London, England, from Rio de Janeiro, Brazil, by the Right Hon. Robert Gordon about 1827. It was actually collected and named earlier by Vellozo in 1790, together with Epidendrum pauper (see Cattleya forbesii), making it one of the first two cattleyas to be described. His description, however, was not published until much later, and there is debate whether it was the same species. In comparison to other bifoliate species, real guttata is not often seen today, and yet selected clones are well worth growing. It was long confused with G leopoldii which was considered to be a variety of this species, but leopoldii is now better classed as a separate species. The Richard name and plate of C tigrina with its rosy sepal tips would seem to match closely the type of C guttata in the Botanical Register, thus making tigrina another synonym. Some researchers consider it, however, a distinct species, and I am so inclined, but feel we need to know a little more about it first before making the separation. The spotting, for which it is named extends even to the ovaries and pedicels of the flowers. The plants are smaller than those of the usual C. guttata with no more than 2-3 flowers per growth; and the flowers are also small, about 1V2-2 in. (4-5 cm.) across. Braem seems confused on this issue, mixing G tigrina with G leopoldii rather than C guttata. Tigrina is, incidentally, an appropriate name since the
68 The Cattleyas I Fig. 27. Cattleya guttata South American tigre, or jaguar, is a completely black-spotted, not striped, fierce feline. See the cover of the Sept. 1984 Die Orchidee for reproduction of the type picture of the species. Early descriptions in the Orchid Review say the plants of guttata "prefer the higher trees which would take hours to cut down. Their roots will descend the trunk 40 feet or more, and their pseudobulbs attain 5 feet and of corresponding thickness." One wonders if these were not really plants of C. leopoldii because of their great size? Variety 'Russelliana' had flowers larger than the type but less spotted, and the lip was short and tipped with deep violet-red. Unspotted green alba forms with a white lip also exist. In the fine article dealing with bifoliate cattleya habitat (AOSB, July, 1986) the Pessoas describe C guttata growing with C. intermedia in beach sand in full sun together with cactus in other sparse vegetation. At least three natural hybrids have been described. C guttata x C intermedia produces C picturata; with G loddigesii, G hybrida is formed; and the hybrid with C forbesii is C day ana..
Description of Species 6 9 The confusion that has existed over the years as to whether G leopoldii is a variety of C guttata stems from the general similarity of the flowers and the wide color and size variability within both these species, plus the fact that they interbreed in some localities. It is difficult to distinguish clear-cut not just relative characteristics to separate the species. Generally speaking C. guttata plants are smaller, with smaller and fewer flowers, than plants of C. leopoldii, and horticulturally they are less exciting or interesting. The guttata flowers are fleshier, greener and more compact. The flowers of leopoldii on the other hand, are softer, larger, more wingy, typically darker in color, and the petals often have wavy edges and turned back tips. The guttata plants are fall or winter flowering while those of G leopoldii bloom in the summer. The guttata flowers develop on a short stalk from a dried sheath, while those of leopoldii plants have a lengthier stalk and a green sheath. Guttata plants I have seen are up to 20-30 in. (50-75 cm.) high while well grown leopoldii plants can reach to 5 ft. (over 1 Vi m.). Braem points out that the tip of the column is exposed in leopoldii flowers but is completely concealed by the lateral lobes of the lip in guttata. None of these qualities is by itself a clear-cut key character to separate the two. This is compounded by the fact that the two separate species have overlapping distributions in some Brazilian locations leading to the intergrading of forms. It does not, however, invalidate the integrity of the two separate species, confused as they may be in collections and in nature, nor does it resolve the delimitation of G tigrina as possibly a separate taxon of still smaller plants adding to the complex. But what do you write on the labels of such plants? That remains the ultimate question here and in the greenhouse and is what the practical reader will want to know after all this verbiage is digested. As the reader can appreciate, the answer is not simple unless the plant at hand is typical of its species. Otherwise, one must conclude that it is a natural hybrid in some degree or another (l%-99%), and then put the hybrid name on the label—but there is no such name as yet for C. guttata x C leopoldii as is discussed at the tetter's description. Nor is there a name for C loddigesii- harrisoniana intergrades, etc., etc. Plants of these kinds actually form syngameons (see Withner and Stevenson, 1968) that are natural populations of hybrid origin, each derived from two or more species. Where natural populations of species overlap such taxa can develop, and it is, of course, inaccurate to put species names on the labels of such examples. What will the judges and the RHS do now? How can the nurseryman or the hobby grower have a proper label? Fig. 28. Cattleya tigrina (C. guttata?)
70 The Cattleyas I Hardy's Cattleya Colombia Cattleya hardyana Williams. 1886. Orchid Album. 5: t. 231. Subgenus: Cattleya The early orchid fanciers considered this cattleya to be one of the finest and grandest. It is a natural hybrid between C aurea and G warscewiczii and is included here because of its early importance. There are many other natural hybrids within this Alliance, but none of the plants achieved the status of this one, nor were as many plants repeatedly found. The plants of this population closely resemble the warscewiczii parent in growth, producing 3-5 flowers as much as 8 in. (20 cm.) in diameter. The sepals and petals are bright rose-purple and are paler at the base. The frilled lip is 3 in. (8 cm.) across, of a pure magenta-crimson, with the throat and upper portions veined a rich yellow. The two richer yellow "eyes" of the lip are indicative of its parental background, particularly of its "gigas" side. One must assume from all the older plates and descriptions of varieties that the members of the hardyana population not only did interbreed among themselves in nature, they also backcrossed to parental types as well. Such prolific interbreeding provided a hybrid swarm with all sorts of colors and shape combinations. I can recall a block of C. hardyana, produced by pollinating selected parents, at A. N. Pierson Co. in Connecticut, USA, that produced magnificent flowers in various color combinations from white with red lips to creamy or all lavender forms, all with prominent eye markings and full-veined lips. They were a sight to behold, and it was a sad day when they were discarded in favor of modern plants with more secure flowering dates for the major spring holidays. The plants ordinarily flower in summer and require the same treatment as C warscewiczii. The flowers are strongly scented, a quality derived from their aurea background. This hybrid was first imported into England with a shipment of C. warscewiczii and appeared in the collection of G. Hardy at Pickering Lodge, Timperly. It appeared later in other collections and was subsequently produced artificially in cultivation, scarcely two plants completely alike in flower or configuration. There were at the time many named color variants, but these, like so many other older cultivars, are no longer around so listing them seems academic. In an address to the New Jersey Florists Club in April, 1920, quoted in White, P. J. Mossman said, "To get an ideal flower, it would be useless to take a fine form of Cattleya gigas and hybridize it with the pollen of Cattleya intermedia. If, however, Cattleya gigas be crossed with the pollen of Cattleya Dowiana or Cattleya aurea, all the described results are obtained, a compact flower with a rich gold veining in the lip or else large golden yellow discs on the side lobes of the lip: the lip of Cattleya gigas much enlarged and with the finely frilled lip of the parent. In a cross such as this, the one thing to observe is to select a type of Cattleya Dowiana which does not have the habit of twisting its lower sepals". Twenty five years ago plants of hardyana could still be found in collections. It is rare today and should be remade with an eye toward hybridizing superior parents and possible tetraploid forms.
Description of Species 71 Fig. 29. Cattleya hardyana 'Fanyauiana'. Plate 593, Lindenia, 1897. Fig. 30. Cattleya hardyana alba. Dictionnaire Iconographique des Orchidees, Plate 2 as G dowiana aurea alba, 1896.
72 The Cattleyas I Harrison's Cattleya Brazil Cattleya harrisoniana Bateman ex Lindley. 1836. Bot Reg. 22: sub t. 1919. Subgenus: Intermedia Synonyms Cattleya harrisoniae Bateman. 1838. Paxt. Mag. of Bot. 4:247. Cattleya harrisonii P. N. Don. 1840. Florists' Jour., p. 183. Cattleya intermedia variegata Hooker. 1844. Bot. Mag. t 4085. Cattleya papeiansiana Morren. 1845. Ann. de Bot de Gand. 1:57, t. 5. Epidendrum harrisonianum Rchb.f. 1861. Walp. Ann. Bot 6:317. Cattleya loddigesii var. harrisoniae Veitch. 1887.Man. Orch. Plants., Cattleya, p. 42. This Cattleya has been considered a variety of G loddigesii with which it apparently overlaps in natural distribution and interbreeds. These facts have been the source of much confusion. In addition the two have been confused by taxonomists, particularly Bateman who called it harrisoniae instead of harrisoniana, its proper epithet. In hybrid registration the two species are still considered synonymous by the Royal Horticultural Society. There is no way, therefore, to know which species or a natural hybrid, in fact, was used in producing any given hybrid, unless the clonal names of the parents are known and they can be traced back and identified. In most cases this will, of course, make no difference at all. The plants of this species grow to 20 in. (50 cm.) and bear 2-3 in. (5-10 cm.) flowers. They are a lilac-rose color with yellow on the tip. The sepals and petals usually have a heavy substance and a flat configuration considered attractive by the judging standards of today. The lip is also marked with violet-purple at the base. The flowers usually lack the purple spotting at the base of the sepals and petals that is typical of G loddigesii. The plants are floriferous and bloom readily in later summer, or at various other times. They can be well grown in baskets. It is an easy species to grow in cultivation. When compared to the flowers of C. loddigesii, these flowers are less spotted, larger in size, have some or certainly more yellow on the lip, more pronounced reflexing of the margins of the lateral lobes of the lip, and the plants are slender and taller with narrower leaves and flower from green sheaths. The sepals are usually wider than the petals in the subgenus Intermedia that includes this species, but some finer forms may have wider petals. A number of varieties or color forms have been described in the literature, including white with yellow only on the lip, spotted clones, extra dark or extra rosy colored forms and even so-called blue types. The species was introduced as a variety of C. loddigesii by Mr. Harrison of Liverpool, England in 1836. It grows on bushes in swampy areas near Rio de Janeiro, and in Minas Gerais, Brazil, under warm, humid conditions. o The natural hybrid G sororia is presumed to be G harrisoniana x C bicolor, which is a synonym of G wilsoniana, a prior name for the same combination. G brownii is possibly another bicolor-harrisoniana combination from introgressive hybridizations, and yet another name would be C
Description of Species 73 braziliensis (see under G amethystoglossa and also C. bicolor); G wilsoniana, again, would have the priority. C. duveenii combines harrisoniana with C leopoldii var. leopardina; in C pittiae it mixes with C schilleriana; and in G venosa with C forbesii. Fig. 31. Cattleya harrisoniana Intermediate Cattleya Brazil Cattleya intermedia Graham ex Hooker. 1828. Bot Mag. 2nd s. 2, t. 2851. Subgenus: Intermedia Synonyms Cattleya ovata Lindley. 1836. Bot. Reg. 22: sub t. 1919. Cattleya maritima Lindley. 1836. Bot Reg. 22: sub t. 1919. Cattleya amethystina Morren. 1848. Ann. de. Bot de Gand 4:217, t 201. Cattleya loddigesii var. amethystina Lemaire. 1853. Jardin Fleur. 4: sub t. 379. Epidendrum intermedium Rchb. f. 1861. Walp. Ann. Bot 6:318. Cattleya amabilis Lindley ex DuBuss. 1878. UOrchidophile, p. 232. Cattleya aquinii Barb. Rodr. 1891. PI. Nov. Cult. Gard. Bot Rio. 1:23, t.4. Stems of the plants of this species are 15 in. (40 cm.) high with two 6 in. (15 cm.) leaves. The peduncles are 2-5 or more flowered. The fragrant flowers are rosy pink with shadings purple to milk-white, variable from form to form, about 4 in. (10 cm.) across. The outer halves of the sepals and petals are sometimes dotted amethyst-purple. The tip of the lip is amethyst-purple and strongly crisped. The plants flower during April and May. They require the same cultural treatment as G guttata. The species was introduced in 1824 when it was brought by Capt. Graham of the Royal Packet Service from M. Harrison in Rio de Janeiro, Brazil, to the Botanic Garden in Glasgow, Scotland. We know that the species covers an extensive range in southern Brazil. The name intermedia
74 The Cattleyas I was given because its flower was intermediate in size between already known cattleyas, in particular forbesii that was smaller and labiata that was larger. Some had known it previously as G amabilis, a horticultural name for a vigorous variety of intermedia which made two growths per year. There are more than 100 recognized clones of this species in Brazil, pointing up its great variability in color and form. There are, to my eye, both short and tall populations, about 10 in. (26 cm.) in the shorter and up to 20 in. (52 cm.) in the taller types, neither of which can be attributed to the quality of culture. There are several white forms in cultivation of which the first was Tarthenia'. The white forms have been used in producing our modern pure white, cluster-flowered hybrids which have no trace of yellow in the throat; true albas in the proper sense of the word, or alba plenas, meaning fully white. One of these must have been used in producing G Belairensis 'Alba', the only combination I know of in the literature that has made a white hybrid with C skinneri. Both species belong in Hursf s Albino List in Group I, which contains those species with a ccRR gene constitution which produce white progeny. The splashed petal configuration in this species, found three times in nature at least, is the forerunner of our modern splashed petal hybrids. The first of this pattern was called Cattleya aquinii when it was found by Francisco de Aquino in Rio Grande do Sul and named by Barbosa Rodrigues who was Director of the Botanical Garden in Rio de Janeiro, in 1891. Rolfe and others soon placed it as a variety of G intermedia where it properly should be considered. The best of these three was further distinguished by the clonal form name 'Vinicolor'. This plant was self-pollinated and the resulting seedlings were also crossed, and selected forms selfed, so that today the aquinii name is no longer a clonal designation as such. It merely indicates a splashed petal form, since technically, only the original plant or Fig. 32. Cattleya intermedia Tarthenia'
Description of Species 75 Fig. 33. Cattleya intermedia its divisions deserves the original epithet aquinii /Vinicolor\ By now the terminology of plants in this group is so confused that their origins are probably impossible to trace. The original may not even exist at present, but perhaps someone in Brazil still has a division. All other clones should have other and different clonal names after the aquinii. An article by Keevil in the 1900 Orchid Review, describing a Brazilian island near Santos said, "Cattleya intermedia of several varieties, including alba, exists in a variety of positions. I have found them occasionally on the beds of sphagnum moss in marshy depressions of raised sandy beaches under the low shrubs. ... They will colonize a few square yards on the top of a bare granite boulder surrounded by the tide, dashed by the spray and subjected to scorching sun and every wind. They also exist high on the branches of trees 1000 ft. above sea level. Their special metropolis, however, is a low narrow, windswept, marshy valley with the ocean at both ends, and a steep granite headland and hill at the sides. In the space of an
76 The Cattleyas I acre there are many thousands. One has to wade to the knees in mud and swampy water. The gnarled crowded trees are stunted by the wind to a seven foot growth. Every trunk and limb teems with sturdy intermedias, their roots stretching to the perennial moisture below. In April and May the flowers are resplendent.... The island is about 200 miles southwest of Rio de Janeiro and 300 miles northeast of the island of Santa Catarina." The Pessoas, in their informative article in the July, 1986, Am. Orchid Soc. Bull, describe and picture a similar habitat with intermedias growing in full sun on the beach sand between cactus and other sparse vegetation. Despite sea breezes, the temperature may reach 95°F (34°C) but the relative humidity is maintained thanks to the proximity to the sea. In such areas of southern Brazil the natural hybrid, C. intricata, with C leopoldii may be found in its various manifestations (see chapter on Introgression). C intermedia has also hybridized with C. forbesii to form G krameriana; with C guttata to form C picturata; with C loddegesii (harrisoniana?) to form C claesiana; and with C porphyroglossa to form C flaviola or alternately, C scita. Fowlie's book, or original literature, should be consulted for details on the hybrid forms and their history. Recall that natural hybrids are written, according to the Code, in the same way as species names, in italics, and that the same hybrids produced later in cultivation are written as usual with grex names the same, but capitalized and in Roman. Fig. 34. Cattleya intermedia aquinii. Iconographia de Orchidaceas do Brasil, plate 127, 1949, as C aquinii.
Description of Species 7 7 Fig. 35. Cattleya iricolor Rainbow-colored Cattleya Ecuador Cattleya iricolor Rchb. f. 1874. Gard. Chron. n.s. 2:162. Subgenus: Stellata Bearing a somewhat fanciful name, this species was a "lost" cattleya until rediscovered in the 1960s. It was originally described by Reichen- bach f. in 1874, rediscovered by Padre Andretta of Cuenca, Ecuador, and then sent to a few growers by the late Jose Strobel in 1962. But no one knew exactly what it was. It was finally recognized again in the 1976 article by Bin Weinhold in the Am. Orchid Soc. Bulletin. The plants come from the vicinity of Puyo on the eastern side of the Andes in Ecuador and grow at 3100 ft. (1000 m.) where rainfall is high. They flower in April and May. The species is unifoliate and produces 2-3 creamy white or straw- colored flowers 3 in. (8 cm.) in diameter. The sepals and petals are all long and narrow, and the lip is noticeably pointed and scarcely lobed. There is a red veining in the throat, a band of shading ranging from yellow to white across the base of the midlobe, and then another band of radiating red-
78 The Cattleyas I purple lines extending toward the apex. There are, incidentally, only two Catttleya species with definitely pointed lips, iricolor and aurantiaca. All the others have rounded or retuse midlobes, though maxima, mooreana and araguaiensis approach pointedness. The plants are distinctive in that the leaves are long in proportion to the slender pseudobulbs, and are narrow and upright to 15-20 inches (35- 45 cm.) and about 1 inch (2-3 cm.) wide. It is reported that selfed seedlings of the species are being raised in cultivation, and a few plants have been brought into cultivation from the wild. In 1893 one hybrid with C. mossiae was produced—Cattleya Philo with a variety 'Albiflora'—but no trace of them exists today. Yellow and pink forms were once described, but until several seedling plants are flowered and described and more observations made in nature, we shall know little more of this species. Let us hope the native environment will not be burned down before the field work is accomplished. This species is one of about ten that cannot be exported from Ecuador at present. Fig. 36. Cattleya jenmanii
Description of Species 79 Jenman's Cattleya Venezuela Cattleya jenmanii Rolfe. 1906. Kew Bull 20:85. Subgenus: Cattleya Section: Cattleya Described initially in 1906, this cattleya was always obscure, was then "lost" to cultivation, and was finally rediscovered in 1969 by G. C. K. Dunsterville when he found and described Cattleya "Guayana". Questionable plants had appeared sporadically from the Venezuelan Guyana, a location difficult to reach, but after Dunsterville 's field collections they were confirmed as G jenmanii by Prof. Garay at the Orchid Herbarium of Oakes Ames at Harvard University. One of the problems was that the flowers were not particularly distinctive and'could easily be mistaken for one of the older types of labiate hybrids rather than a wild species. This is a unifoliate species, single sheathed and with sweetly scented, rose-purple flowers. The lips have a darker central patch toward the apex, white "eye" spots to the sides and orange and yellow veinings in the throat. The lip has a definite trumpet-shape, the midlobe producing the flare at the end. Most plants of this species flower in December bearing one to three flowers. The species is native to deep forests along rivers at about 1000-2000 ft. (300-600 m.) altitude. The forests merge into savannahs, so the plants are exposed to good light and air. Some growers are now raising them from selfed seed, and although the species has no immediately noticeable outstanding qualities for hybridization, we should have a population for further study and appreciation in cultivation. Ken's Cattleya Brazil Cattleya kerrii Breiger and Bacalho. 1976. Bradea 2:61-62. Subgenus: Intermedia Pictured and well described by Fowlie and Duveen in the March- April, 1986, Orchid Digest this cattleya comes from southern Bahia, Brazil. Although the flowers and the long, thin pseudobulbs are reminiscent of G harrisoniana, this is a distinct species. The plants are commonly monofoliate, but are also bifoliate, and are found growing in a warm, wet coastal zone on trees along swamp margins. The area of distribution is not large but provides comparative shade, high humidity and high rainfall. The flowers develop from within a well-formed sheath. Typical of the subgenus, Intermedia, proposed here, the flowers' lateral sepals are sickle-shaped and the petals generally narrower than the sepals, all of a uniform rose-purple color. The petals are long, attenuated, taper to a
80 The Cattleyas I Fig. 37. Cattleya kerrii. Photo by Fowlie distinct point, are reminiscent of certain laelias, in fact, and have wavy margins, whereas the sepals are flat. The lip is distinctly three-lobed with large lateral lobes covering the column and is the same rose-purple color as the rest of the flower. The central area of the midlobe is white with a yellow flush, shading to the purple crisped margin. There are 3-5 violet central veins running across the yellow area, with several reddish lateral veins radiating toward the edge of the midlobe. The petal shape and lip markings, as well as the single leaf (most of the plants) and slender pseudobulbs, make a unique combination in this genus. The species is listed and keyed in Table V and Table VI. It is included with the usually multifoliate Intermedia subgenus as the flowers show a striking affinity with other members of that group, even though the leaf Fig. 38. Cattleya kerrii. Type description and drawing, Bradea, 1976.
Description of Species 81 number does not typically conform. It is almost as though it is a bifoliate cattleya flower on a monofoliate plant. If we were to subdivide the Intermedia, this species would have to be placed in a separate section. Nothing is yet known about the plants in cultivation, though many seedlings are being grown. Crimson or Ruby-lipped Cattleya Brazil Cattleya labiata Lindley. 1821. Collect Bot. t 33. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya lemoniana Lindley. 1846. Bot Reg. 32 t 35. Epidendrum labiatum Rchb. f. 1861. Walp. Ann. Bot 6:313. Cattleya labiata vera Veitch. 1887. Man. Orch. Plants, Cattleya, p. 14. Cattleya labiata var. autumnalis Linden. 1887. Lindenia 3:35, t. 112. Cattleya warocqueana Linden, ex Kerchove 1890. Jour, des Orch. 1:219. Cattleya labiata var. warocqueana Rolfe. 1890. Gard. Chron. 3rd s. 7:735. Cattleya labiata var. genuina Stein. 1892. Orchideenbuch, p. 124. After several labiate cattleya species were discovered an extended debate raged over whether they should be named separately or all considered varieties of this species, the first labiate to be described, and the type for the genus, G labiata was then further distinguished with the epithet vera, the true labiate cattleya. Others called it variety autumnalis, the fall- flowering labiate cattleya, to separate it from others. The species was introduced by William Swainson into England in 1818 from the Organ Mountains about 60 mi. (100 km.) north of Rio de Janeiro, Brazil. It was such a free-growing and popular species that collectors eventually nearly exterminated the plant in that locality. Now it is found in less accessible locations. By 1898 Cogniaux listed more than 70 named varieties. In this species the bud sheath is typically double, a characteristic which also frequently appears in C. warneri, sometimes in G mendelii, and two or three others, such as G bowringiana, as well as in hybrids of these species. Two to five flowers which are 5-6 in. (13-15 cm.) across are produced on the spike. The wavy petals and the sepals are rose-color faintly toned with mauve, while the crisped lip is rich crimson-purple bordered with rose-lilac, which varies in intensity. The throat is yellow with a white "eye" on either side of the central area. An immediate favorite in cultivation because of its flower size, vigor and richly colored lip, C labiata was also one of the first major orchids to be line-bred depending upon self pollination of highly selected clones. The improved third and fourth generation clones were more homozygous for these qualities than wild forms and thus contributed greatly to a number of modern polyploid hybrids. Occasionally, line bred plants produced by Joseph Urmston, who carried out this work in California, USA, are still to
82 The Cattleyas I Fig. 39. Cattleya labiata. Photo by Hugh Henry. Also see Fig. 1 (frontispiece). be found. His work clearly demonstrated the value of improving the "breed" before turning to hybridizing. This sound procedure is practiced by some orchid breeders today with everything from Phalaenopsis to Oncidium, Broughtonia and Vanda. Sometimes several generations of selfing are required to improve markedly the flower forms and coloration. Many varieties were recognized in the past due to the popularity of the species, and many are still grown in Brazil. Variety alba is white except for the yellow throat; 'Amesiana' was a semialba form; 'Superba' had deep rose sepals and petals with a darker, more crimson lip; the clone 'Cooksonii' was semialba with a white edge around the lip; coeruleas were blue, etc. A rare natural hybrid of this species and C. leopoldii is named G victoria reginae. The plants prefer ample light and water during the summer, with drier conditions in winter after growth and flower production is completed. Plants of Cattleya labiata and its hybrids are autumn "short day bloomers", responding to the length of day and night in their flowering. Other cattleyas do not share this characteristic. This species and its hybrids are thus controllable in their flowering, as was discussed in the earlier chapter on "Culture", for the timing of cut flower crops. The Orchid Digest for July, 1987, has a complete account by Lou C. Menezes of G labiata and all of its described varieties with many illustrated in color.
Description of Species 8 3 Fig. 40. Cattleya lawrenceana Sir Trevor Lawrence's Cattleya Guyana, Venezuela Cattleya lawrenceana Rchb. f. 1885. Gard Chron. n.s. 23:338. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya mossiae Schomburgk 1848. Reisen in Brit-Guiana, p. 1068. Cattleya pumila Schomburgk 1848. Ibid. Dunsterville says this species is the "Queen of the Guianas" if Cattleya violacea is the "King". Plants of G lawrenceana are easily grown, bearing stems up to 15 in. (39 cm.) tall with one narrow leaf. The spikes are five to seven flowered from a brownish purple sheath. The flowers are 4-5 in. (10-13 cm.) across and are pale rose-purple to almost white. The petals are darker than the sepals, their edges often wavy and curled. The tube-like lip is colored like the petals at the base, but the expanded portion is rose- purple with a maroon blotch. The throat is white with central purple veins. The plants bloom in April and May. This species was first found by Sir Robert Schomburgk during his 1840-44 explorations in the sandstone regions of the Roraima Mountains of Venezuela. It was mistaken by him for C. mossiae. It was rediscovered in 1884 by Seids while collecting for Messrs. Sander and Co. and was dedicated to Sir Trevor Lawrence who was president of the Royal Horticultural
84 The Cattleyas I Society, London, England. C lawrenceana is a variable species, a member of the labiata group, and good forms, by modern standards, are difficult to find in collections today. In nature it grows on trees in the jungle at elevations of 6000-8000 ft. (250-3000 m.) and requires moisture and warmth, especially in the summer. The variety 'Rosea Superba' was more robust with larger flowers of rose-purple striated with white. Also, there is a rare 'Concolor7 that is nearly all white showing just a touch of pale pink when grown in full light. I must wonder, as I read some of the old varietal descriptions, especially those called 'Marmorata' whether the plants may have been infected with tobacco mosaic color break virus. There is no way to know now, but the descriptions sound very suspicious. It has not been a popular or common species in cultivation. Fig. 41. Cattleya lawrenceana 'Concolor'. Photo by Ellis
Description of Species 8 5 Fig. 42. Cattleya leopoldii King Leopold's Cattleya Brazil Cattleya leopoldii Verschaffelt ex Lemaire. 1854.7//ms. Hort. 1: misc., p. 68. Subgenus: Falcata Section: Guttatae Synonyms Cattleya guttata var. leopoldi Lemaire. 1885. Illus. Hort 2: sub t. 69. Epidendrum elatius var. leopoldi Rchb. f. 1862. Xett Orch. 2:33. There was so much early confusion about the identity and naming of this species that it was usually considered a variety of Cattleya guttata. It is now recognized as a separate species. The plants are large, growing up to 4 ft. (1.2 m.) high, and beyond, and may produce up to 20, or even 30 (Williams), flowers at a time. There are usually three leaves on such plants, two on less sizable growths, and the flowers emerge from a green sheath, not from dried sheaths as does G guttata. The leaves are often sharply edged and serrated toward their bases. The flowers are 3-4 in. (7.6-10 cm.) across, have a sweet fragrance and are bronze-green or deep brown with faint to prominent spotting. The petals are somewhat elongated and vavy edged. The lip has a whiter base and the midlobe is a deeper amethyst color. G leopoldii is native to southern Brazil. Verschaffelt in Ghent, Belgium, named it, dedicating the species to Leopold I of Belgium. The name was published by Lemaire. In the original versions it was spelled with one i, but now we more properly use ii It grows with Laelia purpurata and G intermedia, in Santa Catarina, Brazil, and in other areas with G guttata or C. loddigesii. Breiger, Maatsch and Senghas distinguished the tall-type plants of southern Brazil from the short variety pernambucensis in more northern Brazil where guttata also grows. Natural hybrids between these species have all been described and named. The cross with L. purpurata produces Lc. elegans; the cross with G intermedia is C. intricata; but the hybrid of C. leopoldii x C. guttata has no proper grex name unless the pernambucensis
86 The Cattleyas I changed to hybrid status might do. The plants grow in coastal forests at altitudes up to 300 ft. (100 m.). There are decided daily temperature fluctuations between day and night, and high humidity and rainfall are followed by seasonal dryness. It usually flowers in mid to late summer. A number of varieties are recorded in the literature, as well as in the greenhouses of contemporary collections. The one we perhaps have seen most was originally identified as C. guttata var. alba. It is correctly C. leopoldii 'Alba'. But by now plants resulting from two or three generations of self pollinations of the original form have relegated the original clonal name to varietal status covering a whole population of such forms. Individual new clones now demand a fourth epithet to distinguish them from others if alba is retained in the name. Other named varieties have included the following: Tmmaculata' was mauve-brown without spots and with a white lip; Teopardina' was an orange-tan color with crimson spotting; and 'Williamsianum' was dull cream-purple spotted with deep purple. Variety Tabstia' is a peloric form with petals veined and marked like the lip in red- purple. The Royal Horticultural Society still does not recognize C. leopoldii as a separate species so the seeker of parentages for cultivated hybrids must take this into account when dealing with the natural hybrids and inter- grades among leopoldii and guttata. The natural hybrid of C. forbesii and leopoldii is C. Isabella; C. scita is possibly leopoldii x C intermedia (in which case it would be synonymous with C. intricata) or, more likely, is C. intermedia x C. porphyroglossa. C. duveenii is, according to Fowlie, the hybrid, between C. harrisoniana and C. leopoldii var. leopardina. Loddiges' Cattleya Brazil and Argentina Cattleya loddigesii Lindley. 1823. Colled. Bot. sub t. 33, t. 37. Subgenus: Intermedia Synonyms Epidendrum violaceum Loddiges. 1819. Bot. Cab. t. 337. Epidendrum canaliculatum Vellozo. 1825 (1790). F/. Flum. Icones, 9,t. 10. Cattleya ovata Lindley. 1838. Bot. Reg. sub t. 1919. Cattleya arembergii Scheidweiler. 1843. AUg. Gartenz. 11:109. Epidendrum loddigesii Rchb. f. 1861. Walp. Ann. Bot. 6:316. Plants are 12-15 in. (30-39 cm.) tall with robust round stems. Two elliptic-oval leaves form at the top. The flowers are 2-9 in number and about 4 in. (10 cm.) across. The sepals and petals are pale rose tinged with lilac and usually speckled with darker purple. The lip is pale amethyst- purple to white with a crisped margin. The pale disc is marked with faint yellow and noticeably raised central veins but none are on the lateral lobes as in C. harrisoniana. This species prefers warmth, light, a good rest period and ample watering during growth. It generally blooms in the fall to early
Description of Species 8 7 Fig. 43. Cattleya loddigesii winter from a dried sheath, according to the books, but Hamilton's data indicates a late winter-early spring flowering as well. Additional information on the differences between this species and C. harrisoniana, with which it has often been confused, and with which it hybridizes in nature, is found in the description of that species. This was the first Cattleya introduced into European greenhouses and came from Rio de Janeiro, Brazil, by way of Messrs. Loddiges of Hackney, England, under the name Epidendrum violaceum. When Dr. Lindley founded the genus Cattleya, he redescribed it, naming it after the nursery since the name Cattleya violacea had already been given to another species. In nature it grows in various situations on rocks and trees near rivers and swamps, in shade and sun, in coastal situations from Minas Gerais, Rio de Janeiro, Sao Paulo and south to Argentina. There are white varieties, such as 'Stanley7, as well as colored forms such as coerulea or violacea and various other named clones. C. obrieniana is a natural hybrid with C. dolosa and has white as well as lavender forms. This hybrid should be remade in cultivation to study variation and the relationship with the parental forms. The Royal Horticultural Society considers the loddigesii-harrisoniana syngameon as one species for purposes of hybrid registration, so that it is not possible to tell which species was used as a parent, or whether or not the parent was, commonly perhaps, one of the natural hybrids labeled with a species name. There is no grex name for the loddigesii-harrisoniana inter- grades. G patrocinii is the natural hybrid with C. leopoldii; C. hybrida with C. guttata; C. claesiana with C. intermedia; and C. crashleyi with G granulosa. For Mozart fans, the hybrid between C. loddigesii and L purpurata is he. sallieri. See G harrisoniana for other possibilities.
88 The Cattleyas I Lueddemann's Cattleya Venezuela Cattleya lueddemanniana Rchb. f. 1854. Xen. Orch. 1:29. Subgenus: Cattleya Section: Cattleya Synonyms Epidendrum labiatum var. lueddemannianum (Rchb. f.) Rchb. f. 1861. Walp. Ann. Bot 6:315. Cattleya dawsonii Warner. 1862. Select. Orch. PI. 1: t. 16. Cattleya speciosissima Hort. 1868. Gard. Chron. p. 404. Cattleya speciosissima var. lowii Anderson. 1868. Gard. Chron. p. 404. Cattleya labiata var. dawsonii (Warner) DuBuysson. 1878. Orchidophile, p. 240. Cattleya speciosissima wax. buchananianaHort. 1882-97. Wms. Orch. Album 6: t. 261. Cattleya roezlii Rchb. f. 1882. Gard. Chron. n.s. 18:457. Cattleya labiata var. roezlii Rchb. f. 1882. Gard. Chron. n.s. 18:457. Cattleya labiata var. lueddemanniana (Rchb. f.) Rchb. f. 1883. Gard. Chron. n.s. 19:243. Cattleya malouana Linden. 1885. Lindenia 1:90, 99, t. 47. Cattleya labiata var. wilsoniana Rchb. f. 1887. Gard. Chron. 3rd. s. 2:460. Cattleya bassetii Hort. 1887. Ato. Orch. Plants. Cattleya, p. 19. Cattleya mossiae var. autumnalis Hort. 1887. Man. Orch. Plants., Cattleya, 'p. 19. The complicated synonymy of this species cannot be readily explained. Since it is an outstanding species, with larger flowers than average, perhaps many wanted the honor of having it named after them. At one point, according to older writings, it was even considered identical to C. gaskelliana, so there was also considerable confusion as to its characteristics. The earliest notice of this cattleya was by Reichenbach in Xenia Orchidacea and described a plant in the collection of Pescatore at St. Cloud in Paris, France. It received the name lueddemanniana in recognition of his gardener, who was then one of the most skilled orchid growers in France. The species was later recognized as being the same as the British speciosissima. In the meantime, it had been cultivated before 1863 at Meadow Bank near Glasgow, Scotland, by Dawson and named dawsonii by Warner. And so the list of names grew until communication about the plants improved. The plants characteristically produce 3-4 flowers of good substance and better than average form. The flowers can measure 8 in. (20 cm.) across. The petals are nearly three times wider than the sepals. The sepals and petals are a delicate rose-purple suffused with white, some forms having a darker tone. The lip is the same color except for the front which is amethyst-purple with yellow in the throat and then has characteristic tesselated magenta markings on the midlobe. The plants typically flower in the spring, but some say it is not as free- flowering as other types of cattleyas. Occasionally, seasons may pass with few or no flowers produced. It must definitely be grown in a warmer part of the greenhouse and needs plenty of light and fresh air, reflecting its sea level habits, not the mountain altitudes of its cousins. Dunsterville says it grows in "lower warm-to-hot parts of the north facing slopes of the Coastal
Description of Species 8 9 Range. ... and in fairly low scrubby hills". Poor culture from growing it "cool" instead of "warm" or "intermediate" could account for its apparent scarcity in modern temperate collections. Many forms have a naturally good shape from the point of view of judging, and it is a popular species today in Venezuelan shows. Various color forms are known: the white, blue, and particularly the darker colored types are sought after. Among the older varietal names we find albas with white flowers and only a stain of yellow on the disc; 'Baron Schroeder' was white with an orange-yellow lip from which purple streaks branch out; Town' had white markings on the lip with yellow lines; and 'Regina' has darker color and a deep purple lip and longer than usual pseudobulbs with prominent nodes (a natural hybrid?). The white 'Stanleyi' is still grown, perhaps the only remaining older named clone still in cultivation. What significance these older names may have for us today is debatable. And for this writer there is the constant problem of whether to write them in italics, as a properly described variety should be, or leave them capitalized and placed in single quotation marks as a clone should be. In many cases, particularly with alba clones, there's no real way to know. In any case, most of the early clones of this and many other species, no longer survive, but a study of the old descriptions and plates when available does Fig. 44. Cattleya lueddemanniana
90 The Cattleyas I Fig. 45. Cattleya lueddemanniana alba show today's grower the variations possible within the species and the potentials in selfings or hybridizing, at least when the gene pool of these species was more nearly intact than at present. There is definitely something to be said for the conservation of outstanding clones! Dunsterville has noted a peculiarity in column structure unique to this species. The column has a relatively large, terminal, broad-winged appendage at the tip over the anther cap. It is quite distinctive when compared to the narrow hook-like process of the other labiate species.
Description of Species 91 Pale Yellow Cattleya Ecuador, Peru, Brazil and Bolivia Cattleya luteola Lindley. 1853. Gard. Chron., p. 774. Subgenus: Stellata Synonyms Cattleya flavida Klotzsch. l%56. Allg. Gartenz. 24:73. Cattleya meyeri Regel. 1856. Gartenfl. 5:116. Cattleya modesta Meyer ex Regal. 1856. Gardenfl. 5:116. Cattleya epidendroides Hort. ex. Rchb. f. 1856. Xen. Orch. 1:209. Cattleya holfordii Hort. ex. Rchb. f. 1856. Xen. Orch. 1:209. Epidendrum luteolum (Lindley) Rchb. f. 1861. Walp. Ann. Bot. 6:313. Cattleya sulphurea Hort ex Gard. Chron. 1885. Gard Chron. n.s. 24:10. A dwarf species with creeping rhizomes making multiple splayed growths, with pseudobulbs only 1-3 in. (2.5-7.6 cm.) high. The leaves add about 4 in. (10 cm.), and may have a red flush noticeable on the reverse. Fig. 46. Cattleya luteola
92 The Cattleyas I Flowers are 2 in. (5 cm.) across in sprays of 2-5. They are a pale lemon- yellow concolor, in the type, except for the anterior margin of the lip which is white. The side lobes of the lip may be streaked with purple, and there may be a rose flush or pale purple spot on the front of the lip, but these colors are not mentioned in the type. It flowers in late fall or early winter. The earliest mention of this species was in the Gardener's Chronicle of 1853, but it had been cultivated previously in several collections. In Brazil, where it was cultivated on orange and other trees, it was reported to grow throughout the year and be almost continuously in flower. Most plants today come from Peru or Ecuador, and do best mounted on cork, tree fern or driftwood with ample exposure to light, air and room for rambling roots. It has a distinct winter dormancy when water should essentially be withheld. Its sprawling growth habits should be allowed for in its mounting. C luteola has been in much favor recently for its role in producing miniature hybrids. The yellow flowers contribute to colorful combinations, such as in Sc. Beaufort, where it is crossed with Sophronitis coccinea. Though the species has had a catenation of names in the older literature, there are no particular descriptions of distinct clones as it apparently does not vary greatly. G blossfeldiana is the natural hybrid of G luteola with C. rex. Greatest Cattleya Venezuela, Colombia, Ecuador and Peru Cattleya maxima Lindley. 1831. Gen. and Sp. Orch., p. 116. Subgenus: Cattleya Section: Maximae Synonyms Epidendrum maximum Rchb. f. 1861. Walp. Ann. Bot. 6:316. Cattleya malouana Lind. and Rod. 1886. ///. Hort. 33:102. Stems varying from 4-15 in. (10-39 cm.) or longer are indicative of the two distinct races, ecotypes, of this species, one vegetatively larger than the other. It is named, not for its large flowers as Veitch questions, but because the lowland race of plants is vegetatively tall, greater than any of the other monophyllous cattleyas in size. The pseudobulbs on well-grown specimens are enormous, and with leaf added may reach 2 ft. (61 cm.) in height. The upland types are of usual cattleya size, not out of the ordinary, but the original specimens were the lowland sorts, thus the name was appropriate. The upland types bear 3-5 flowers while as many as 12-15 can appear on the lowland sorts, all about 5 in. (12.7 cm) across. The perianth is pale rose on large plants, and much darker and more intense on smaller upland plants. The petals are waxy-margined, often turned back along the midrib, and the lip is colored like the petals, having a deep crimson network of veins and a distinctive yellow band extending from the throat to the apex of the lip. There may be a paler ruffle about the border. The leaves and pseudobulbs of the upland types tend to be mottled
Description of Species 9 3 with red, while those of the lowlands are plain green. The plants bloom in winter to early spring, but mostly October and November according to Hamilton. They make two growths a year under good growing conditions. Around Guayaquil, Ecuador the maximas grow high on horizontal branches of old ceiba trees in dry coastal hills; the upland types are found on limestone outcroppings; on small trees, along rivers; as well as in comparatively dry areas with cactus and scrubby thorny vegetation. I have seen them growing to perfection out of doors in Florida at Fred Fuchs' range in Naranja, on fragments of driftwood, flowering at a peak in late February for Miami Show time. There is no question of their large size; the plants are gigantic compared to other cattleyas. This species was discovered by Ruiz and Pavon, two Spanish botanists sent to Peru in 1777 to investigate the Cinchona (quinine) forests of that region. Lindley described it from their herbarium specimen in 1831. It was refound by Hartweg in 1842, who sent living plants to the Royal Horticultural Society of London, England, after which it became more common. The species was reintroduced a few years back from the field work of Jose Strobel in Ecuador. He sent both the lowland and the upland types to various collections in the United States in the early 1960s. The local name for these flowers was Flor de Navidad, Christmas Flower. Few varieties have been described, but the varietal epithet backhouse was used for the darker upland flowers. A violacea was described, and once or twice albas have been discovered. The whites are very rare, in fact only one or two clones are currently known in Ecuador and are considered quite valuable. The species is distinct in its growth, flower configuration and lip coloration as compared to the usual labiate cattleya. The column structure is also somewhat different, showing more developed lateral processes at the tip instead of the usual teeth. They cross over each other in front of the anther cap. More attention should be paid to it in hybridizing, especially the color and size of the upland types. With the current fad for miniature hybrids, the potential of the giant lowland plants hardly has a chance. Fig. 47. Cattleya maxima
94 The Cattleyas I Fig. 48. Cattleya mendelii Mendel's Cattleya Colombia Cattleya mendelii Backhouse. 1870. Wms. Orch. Gro. Man, 6th ed, p. 190. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya labiata var. mendelii Sanders. 1886. Reichenbachia 1, t 15. Cattleya labiata var. bella Rchb. f. 1882. Gard. Chron n.s. 17:700. Cattleya cupidon Hort 1894. Lindenia 10:19, t. 440. The broad sepals and petals of this species are pale, almost white, but tinted rose-mauve, the color usually being stronger in the petals. The tube of the lip is white or the same color as the petals. The expanded portion is broad, much crisped, a rich crimson-purple and sharply separated from the yellow disc and throat crossed by reddish veins. The abrupt contrast of the purple and yellow is a distinguishing characteristic. The plants bloom in April or May, producing 2-3 flowers 7-8 in. (17.7-20 cm.) across. Its culture is similar to that of C. warscewiczil
Description of Species 95 The species was first introduced in 1870 by Messrs. Low and Co. and shortly after by Messrs. Backhouse who named it to compliment Sam Mendel of Manley Hall, near Manchester, England. It flowered for the first time in cultivation in June, 1871 in the collection of John Day. Its native home is on the slopes of the Eastern Cordillera between Pamplona and Bucaramanga, Colombia, the Dept. of Santande where it often grows on exposed precipices and bare rocks. Variety 'Alba' had pure white flowers; 'Bluntii' was white with yellow on the lip; 'Bertii' was rose tinted; Tachneri' had a broad, dark purple, marginal band on the front of the lip and an inner band of light purple; and there were yet others. Though the variable flowers are of large size with broad segments, their softer texture has made them somewhat less desirable than other labiate species for hybridizing. The plants are making a comeback today as interest in species increases, and they are once again available, especially through some of the Japanese commercial growers with nursery connections in Colombia. Moore's Cattleya Peru Cattleya mooreana Withner, Allison and Guenard. Sp. nov. Subgenus: Stellata Pseugobulbis robustis, erectis, satis compressis, clavatis, 18-20 cm. longis, 2.5 cm. latis; folio monophyllo, crasse coriaceo, erecto, 17.5 cm. longo, 7 cm. lato; spatha singula; pedunculo crasso, 1 cm. diametro; floribus mediocribus, 4-5; sepalis et petalis lateralis obtusis, olivaceis pallidis, sepalis longioris, petalis procurris anticis; labello flavo-albescens extus, leviter recurva, intus albidi, luteia et purpureia, optusis, sine sinibus loborum lateralorum; ovariis crassiusculis. D. Allison and A. Guenard, s. n., Peru, 1986, flowered in cultivation August, 1987. Deposited in Orchid Herbarium of Oakes Ames, Harvard University. I first saw this cattleya in flower in 1958 at the Brooklyn Botanic Garden. It came from Lee Moore, a Floridian living and collecting in Peru where he ran tourist trips under the name of The Osprey Adventurer. He had sent a plant to me saying it was a new species, and to name it after him, if I would. The plant was in poor condition, produced two flowers on an unestablished new growth and then promptly died. Somehow, not thinking the plant would perish, I had not preserved the remains to press as a type specimen, so it was impossible to name the species until another specimen became available. I did, however, have a photograph as a reminder. Finally, on September 2,1987, it was possible to obtain another specimen, write this description, recover this manuscript from the publisher and insert Cattleya mooreana as a last minute revision before the book went into production. Although I had been to Peru in 1962 inquiring and searching for this plant with my picture as a guide, no trace was to be found, and people commented it was just some sort of G luteola. It is not, as the plant habit imme-
96 The Cattleyas I diately shows. Finally, David Allison and his wife, Canadian friends from Vancouver, who were living in Lima and intensely interested in collecting and growing orchids, were advised to be on the lookout for this cattleya that I had not seen again for more than 20 years. They did find some likely specimens, brought one back to grow in their greenhouse, and we impatiently awaited flowers. Two lead growths were finally produced, each with two flowers, and we have reluctantly but dutifully clipped off the one growth to be pressed and sent to the Ames as the type specimen. The plants are large and robust with upright clavate (club-shaped) pseudobulbs and thick tough leaves. They look almost as though they could be schomburgkias, not cattleyas. They are monofoliate and have a single flower sheath. The flower stalk is heavy, 1 cm. in diameter on the old pseudobulbs, and 5 flowers may be produced but 2-3 are more usual. The flowers are medium-sized, unspotted, and a clear yellow-green with the petals somewhat more yellow in tone. They project forward in the fashion of G aurantiaca or C quadricolor. Both the sepals and petals are bluntly pointed, and the sepals are longer than the petals. The lip is a tube surrounding the column, mostly white on the outside, more yellow within, especially in the throat. As the lip expands for the midlobe, the edges are wavy and it ends in a recurved point. There is a red-purple patch on the disc, and it is traversed by whitish veins. The apex of the lip is white. The ovary is more robust than is usually found in cattleyas, as though it had already been pollinated and started to swell. Fig. 49. Cattleya mooreana
Description of Species 9 7 These plants grow on large riverside trees where the situation is bright and warm. The altitude is from 4000-6000 ft. (up to 2000 m.). The plant size and habit distinguish it from C. luteola immediately, and from other possible cattleyas in Peru found many miles away with no connections. The flowers are also distinctive as a quick comparison with other species will show. The species fits well into the subgenus Stellata along with luteola, iricolor and araguaiensis. The specimens are not common in their habitat, occurring as isolated individuals, so we most await selfed seedlings to have enough plants available for further study in cultivation. Fig. 50. Cattleya mooreana, showing growth habit. Mrs. Moss' Cattleya Venezuela Cattleya mossiae Hooker, 1838. Bot Mag. 65:3669. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya labiata var. mossiae (Hooker) Lindley, 1840. Bot Reg. 26: t. 58. Cattleya labiata var. atropurpurea Paxton. 1844. Paxt Mag. Bot. 7:73. Cattleya labiata var. picta Lindley and Paxton. 1850. Paxt Fl Gard. 1:118. Cattleya labiata var. Candida Lindley and Paxton. 1850. Paxt. Fl Gard. 1:118. Cattleya wageneri Rchb. £ 1854. Bonplandia 2:21. Epidendrum labiatum var. mossiae (Hooker) Rchb. f. 1861. Walp. Ann. Bot 6:314. Cattleya edithiana Warner ex Williams. 1868. Orch. Gr. Man., 3rd. ed, p. 88. Cattleya labiata var. picta (Ldl. and Paxt.) Rchb. f. 1874. Xen Orch. 1:30. Cattleya carrieri Houllet 1876. Rev. Hort, p. 350. Cattleya reineckiana Hort 1883. Gard. Chron n.s. 20:172, f. 33. Cattleya aliciae L. Linden. 1895. Lindenia 11:31, t 494. This has been a most popular species from the time of introduction and has accordingly acquired many named varieties, two of major impor-
98 The Cattleyas I Fig. 51. Cattleya mossiae tance. It is still found in collections today. There were already 165 named varieties when Cogniaux wrote his account of the Orchidaceae for Martius' Flora Brasiliensis in 1898-1902. The 3-4 or more flowers are 6-7 in. (15-17.7 cm.) across. The sepals and petals are a pink or rose-lilac, paler or deeper, or sometimes white. The broad, open lip has a very crisped margin and is extremely variable in color pattern but nearly always with central yellow markings extending from the yellow throat. The lip is generally the color of the petals, the center is variegated with violet veining, and the lip margin is lilac though no two clones are exactly alike. Plants of this species bloom in the spring and are so important for the Easter holidays that it has been called the Easter Cattleya or azucenas (Easter lily). They need a well-defined resting period in the winter and a cool, light and airy environment matching their original mountain habitat. This cattleya was introduced by George Green of Liverpool, England who received it from La Guaira, Venezuela, in September, 1836. It flowered first in the collection of Mrs. Moss of Otterpool, near Liverpool, and the species was dedicated to her by Sir William Hooker. Its native home is a mountain range along the north of Venezuela, near the coast. The plants form a sheath as they complete their growth the previous summer, rest during their winter dormancy then form flower buds and flowers the following spring. The new growths with sheath formation in turn follow flowering. There are often multiple growths so that specimen plants can be developed readily. Among the varieties, alba is a pure white; 'Alexandrae' is white with a
Description of Species 9 9 tinge of rose on the lip; and coerulea is mauve-blue, both in the perianth and veining. Forty six fine, named clones were described as early as 1885 in the 6th edition of Williams' Orchid Grower's Manual. The 'Wageneri' cultivar, affectionately known as "mossy wag", is white save for the yellow on the lip and is the most famous in the lineage of modern white hybrids. Several subvarieties of 'Wageneri' were also recognized. The other famous clone was 'Reineckiana', white with a purple lip, a major progenitor of many semialba hybrids, and also one with more than one subvariety. Modern research has revealed that the flowers of G mossiae have only a single anthocyanin pigment in the sepals and petals, in contrast to the two or three pigments in other species, which accounts for its generally pinker color. It is still a popular species and seedlings bred by selfing some of the old named clones are currently on the market. Nevertheless, as many of the old clones as are available should also be saved as important, irreplaceable assets in the gene pool of the species. John Lager, of Lager and Hurrell in Summit, New Jersey, USA, once had a magnificent block of this species, about 50 clones that had been individually selected over the years by his father from plants he had collected in the wild. They were a magnificent sight every spring, pink and floriferous, each plant a specimen with 10-12 or more blossoms! I often wonder if they are alive today in various collections, but they have probably all been discarded in favor of modern hybrids. Fig. 52. Cattleya mossiae reineckiana 'Exquisita'. Lindenia, plate 481, 1895.
100 The Cattleyas I Fig. 53. Cattleya nobilior Noble Cattleya Brazil Cattleya nobilior Rchb. f. 1883. ///. Hort 30:73, t 485. Subgenus: Rhizantha Synonyms Cattleya walkeriana var. nobilior Veitch. 1887. Man. Orch. Plants. Cattleya, p. 50. This species which generally resembles Cattleya walkeriana, can also flower on leafless growths, but usually has two leaves rather the one of walkeriana. The rose-lavender flowers are hallmarked by the large, diamond-shaped, yellow mark on the isthmus and midlobe of the lip. One to three 4 in. (10 cm.) flowers are produced on the short plants during the spring. The lateral lobes of the lip fold over the column to enclose it almost completely. The plants were first grown and flowered in Ghent, Belgium, in 1883, and were accompanied by much discussion as to whether it was a separate species or a variety of C walkeriana. The plants grow on rough-barked trees at the edges of high cliffs along rivers in coastal Brazil where they receive full light and air. There are distinct rainy and dry seasons and considerable heat in this region. Collectors note that this orchid is without moisture for a full five months from May to September, with a relative humidity of 20% and an average temperature range from 60-70°F (18-21°C) or higher. A blue variety is known; and the lip of a variety 'Hugueneya' had half- open side lobes so the tip of the column is exposed. Variety 'Amalie' was more recently described by Pabst because of its "bluish pink" flowers. Some think that G walkeriana 'Pendentive', an alba type, may actually be a variety of C. nobilior, rather than its presumed species, but that remains to be seen.
Description of Species 101 Fig. 54. Cattleya percivaliana 'Summitensis' ('Summit') Percival's Cattleya Venezuela Cattleya percivaliana O'Brien. 1883. Gard. Chron n.s. 20:404. Subgenus: Cattleya Section: Cattleya Synonym Cattleya labiata var. percivaliana Rchb. f. 1882. Gard Chron. n.s. 17:796. The smaller plants of this species have somewhat smaller flowers than are typical of a labiate cattleya type. They are 4-5 in. (10-12.7 cm) wide, and are produced 2-4 on a peduncle. The sepals and petals are rose- lilac suffused with amethyst-purple, the petals being more deeply colored. The front of the lip is crimson-purple shaded with maroon and a deep, intense yellow, while the frilled border is a pale lilac. The throat is yellow while the tube is colored like the petals. Plants bloom at Christmas, which adds to its attraction, though some people object to the somewhat musty odor the flowers produce. What attraction this fragrance has for pollinators is not clear. The plants require a great deal of light and grow with less water than other labiate cattleyas. The Christmas Cattleya was introduced in 1882 by Messrs. Sander, England, received from their collector, Arnold, who found it "at an altitude sometimes exceeding 4000 feet; it invariably grows on rocks, not trees, and in full exposure to the sun, generally in the vicinity of river courses, which in the rainy season, afford abundant moisture to the plant." Lager cites it as growing near Lake Maracaibo. It was named for M. R. Percival, an English amateur orchid grower at Birkdale, Southport. I recall a rock wall beside our motel on a field trip in the mountains of Venezuela near Merida where this species was growing beautifully for a
102 The Cattleyas I distance of about 50 ft. (15m.). The flowers along the top of the wall were an unforgettable sight. They were backed by a poinsettia hedge in full color. Roadside vendors were selling small wooden baskets containing 4-5 lead growths with flowers, yanked off mature plants in the wild. We could not resist purchasing a few and happily most of them sprouted and grew even without the rest of the plant for backing. This manner of collecting and propagation cannot, however, be recommended as a wise way to acquire cattleyas, though it seemed to work for this one! Variety 'Grandiflora' had richer, rose-colored petals, larger flowers and a darker color on the lip with a rose border. Variety 'Summitensis' is a delicate pink, and 'Summif, as we know it today, is still the best percivaliana in cultivation with an AM, then FCC, from the American Orchid Society. There are also white forms, semialbas and at least one blue form. The species has been largely overlooked for hybridizing because of its smaller size, and the various color forms have been difficult to obtain. More amateur growers with limited space should grow this tolerant species as it readily produces multiple growths leading to full orchid pots in a short time, and blooms readily in the middle of winter. Fig. 55. Cattleya percivaliana. A semialba form.
Description of Species 103 Fig. 56. Cattleya porphyroglossa. Photo by Fowlie Purple-lipped Cattleya Brazil Cattleya porphyroglossa Linden and Rchb. f. 1856. Allg. Gartenz. 24:98. Subgenus: Falcata Section: Granulosae Synonyms Epidendrum porphyroglossum Rchb. f. 1862. Xen. Orch. 2:172,1.171,1.172. Cattleya batalinii Sander and Kranzlin. (not the hybrid of the same name). Gard. Chron, 2nd s.:332-333. Cattleya dijanceana Hort. ex Rolfe. 1902. Orch. Rev. 10:331. This has always been a rare species, only a few plants ever having reached cultivation. It is a perfect candidate for propagation in culture even though it is not particularly distinguished in color, form or size. The flowers are small, 2-3 in. (6-7.6 cm.), about half as large asgranulosa, more like a guttata. The flowers number 3-8 on a stem. Sepals and petals are yellow to olive-brown, the lip has white lateral lobes and the midlobe is covered with purple granulations, as in granulosa, its near cousin. The column is red-purple. The spring blooming flowers are sweetly fragrant, but do not open widely. The species was named from a plant which Linden sent from Brussels to Reichenbach who called it Epidendrum porphyroglossa. The species was later transferred to the genus Cattleya. It was imported in 1864, by Low and
104 The Cattleyas I Co. to England and was painted by Day. The plants had been found a few at a time in small pockets in swampy forests near the coast, and the plant Low obtained was mixed up in a shipment of G harrisoniana to which it bears a considerable vegetative resemblance, and with which it apparently grows. Sander, the English firm, obtained their stock from Minas Gerais, Brazil in 1891. In later years it had been thought extinct until it was rediscovered by Dr. Laramja and Jorge Verboonen in a small area on islands of the Rio Paraiba in the interior of the State of Rio de Janeiro. It was epiphytic on low trees near the water. The variety 'Sulphurea' from Low and Co. was yellower than others, indeed lemon-colored, and the lip was white instead of purple. No hybrids are recorded up to 1985 by Sander. C. batalinii, named after Batalin, Director of the Imperial Gardens at St. Petersburg at the time, had been a puzzle until Pabst, as reported by Fowlie, checking the type specimen at Kew noted it to be of this species. C. batalinii, the natural hybrid, is a combination of C. bicolor x C intermedia and would have nothing to do with porphyroglossa. Four-colored Cattleya Colombia Cattleya quadricolor Batem. 1864. Gard. Chron. p. 269. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya chocoensis Linden and Andre. 1873. Illus. Hort. 20:43, t. 120. Cattleya labiata var. trianae subvar. chocoensis Veitch. 1887. Man. Orch. Plants., Cattleya, p. 25. Cattleya Candida Lehm. 1895. Gard. Chron. 3rd. s. 18:466. Cattleya caucaensis Roezl ex Ballif. 1896. Monti. d'Hort., p. 229. This species was considered by Veitch to be a subvariety of Cattleya trianaei, because it flowers in the same season. But, it was first called C quadricolor in reference to the white, lavender, purple and yellow on the lip. Roezl in 1883 remarked that he did not know why the plant had been called C. chocoensis since it came from the Cauca in Colombia, not the Choco, so he attempted to correct this in 1896 with the name C. caucensis. However its native locale and its proper name may have been confused, the name chocoensis is still recognized by the RHS as a parent of hybrids, though quadricolor has the priority. The flowers of this species do not open as widely as in most labiate cattleyas, a key characteristic it shares with Cattleya aurantiaca, C mooreanea and G porphyroglossa. They remain characteristically cupped or half-open, the petals projecting forward, a feature that has no doubt contributed to its lack of popularity or use in hybridizing. And yet, the sepals and petals are of good size, large and broad, and are often white or sometimes flushed with pale lilac and have wavy margins. The lip is yellow and stained in front with deep purple. The amount of yellow varies with the clone, the balance of the lip being white or pale lavender. The flowers are noted for their
Description of Species 105 Fig. 57. Cattleya quadricobr. Illustration from Curtis's Botanical Magazine, plate 5504, 1865. sweet fragrance, as well as their variability. Some today consider it a sub- form of G trianaei or related to G schroderae and not a separate species. Although a few color varieties were noted as plants came into cultivation, none of them are known today. Plants flower on the new growth, and are easy to bloom. They are cool growers, a quality passed on to their hybrids, which reflects their native habitat high in the Cordilleras of Colombia where the climate is very damp. The plants like a cool, well-lit position and ample water, and should never be allowed to completely dry even in their resting period. They were (are) called azucenas (Easter lilies) by the Colombians. As an aside, it might be explained that in Colombia, so rich in cattleya species, the Andes Mountains extend from theN south branch into three distinct ranges: Central, Eastern and Western Cordilleras. Between the Western and Central range is the River Cauca, and between the Central and Eastern range is the Magdalena River. Most of the cattleyas originate on the eastern foothills of the Central Cordilleras, the main continuation of the southern Andes from Peru and Ecuador. The plants are found from 2000 to nearly 5000 ft. (600-1500 m.), mostly on the branches or trunks of living trees.
106 The Cattleyas I Fig. 58. Cattleya quadricolor varieties. Plate 120 from Illustration Horticole, 1873, as Cattleya chocoensis. John Lager Sr., a collector for the Sanders, is quoted by White (1932) as saying cattleyas in Colombia established themselves where they received free air circulation and sunlight. Along forest streams with little light the plants did not flower and their pseudobulbs were long and thin. The more exposed the plants, the more profusely they flowered. Lager expressed the opinion that in the culture of cattleyas, the more sunlight given the plants, the greater the production of flowers. At lower elevations the cattleyas invariably grow along stream courses, while at higher elevations they are found growing in deep hollows or gullies where moisture is pocketed. Cattleyas obviously prefer moist atmospheric conditions. Lager also noted there was no well-defined rest period in the wild. Two rainy and two dry seasons each year occur in this cattleya habitat, but even in the dry season there is some rain. In other writings Lager states "the habitat of this handsome Cattleya is confined principally to a narrow strip of territory extending along the Rio Cauca ... and at an elevation of 3000 feet... these Cattleyas grow in forests, on level land to a great extent marshy and at times inundated, consequently the moisture the plants receive throughout the year is considerable. The trees are of a short and stunty growth and they are mostly covered with decayed matters and vegetation of every description. This orchid luxuriates. .. often times the trunks and the numerous branches are literally covered with the plants in all imaginable positions . .. the spectacle presented during the flowering season is indescribable ... in August and September." The species was first introduced by Mr. Rucker of Wandsworth, England, who had received a plant from a friend in Colombia. Lindley called the species C. quadricolor, but the name was not formally published until 1864 by Bateman.
Description of Species 107 King of Cattleyas Peru Cattleya rex O'Brien. 1890. Gard. Chron. 3rd s. 8:684. Subgenus: Cattleya Section: Xantheae This species remains comparatively poorly known, and in Schwein- furth's Orchids of Peru only a single herbarium specimen is cited and that without a specific locality. It was described first by O'Brien in the Gardener's Chronicle having been imported and flowered in the greenhouses of Horticulture International of Brussels in 1890. Later it was imported by Sander into England where it flowered in 1892. There always seems to have been a race between the English and French to see which nation could obtain and flower new species first. The competition in those days was tremendous, each nursery having its special collectors out, hoping to send back a first. Sometimes false locales were given in trying to gain time in such races, so today we are only just sorting out some of these erroneous claims. Since we see so little of this species today, it must be more widely grown to gain familiarity with its potentials and it variations. The flowers are often crisped and reflexed and have what is considered poor shape and substance by modern standards, as well as a poor washed-out color. Growing it from seed with a selection of forms would give us a better understanding of the qualities of this species. There are 3-6 flowers about 6 in. (15 cm.) across with sepals and petals a creamy white to an ivory or pale yellow. The rose-red lip is veined with yellow and is surrounded by a white crisped margin on the front edges. The tube of the lip is yellow-streaked with red inside and a creamy white at the edges. The species has the reputation of being "difficult", "delicate", or "hard to establish". A distinctly cool, dry and sunny dormant period is necessary, while warmth and humidity are required in its growing phase. Especially sharp drainage seems to be a critical factor. According to Hamilton's data it usually flowers in July. C blossfeldiana is the natural hybrid of this species with C. luteola. Fig. 59. Cattleya rex
108 The Cattleyas I Fig. 60. Cattleya schilleriana Consul Schiller's Cattleya Brazil Cattleya schilleriana Rchb. f. 1857. Allg. Gartenz., p. 325. Subgenus: Falcata Section: Guttatae Synonyms Epidendrum schillerianum Rchb. f. 1861. Walp. Ann. Bot 6:318. Cattleya regnelli Warner. 1865. Warner's Set Orch. PL 2: t 22. Cattleya aclandiae var. schilleriana Jennings. 1875. Orch., t. 25. A species of semi-dwarf habit, with tough, red-spotted leaves and flowers of heavy substance. The flowers are 3-4 in. (7.6-10 cm.) across. The species was originally thought to be a natural hybrid of G aclandiae and C. guttata. It is not that closely related to aclandiae, however, in spite of the similar vegetative habit and spotted flowers and leaves. A study of the flowers indicated they are more like those species in the Schomburgkoidea: elongata, violacea, bicolor and tenuis. There are rarely more than 2 flowers, the petals having waxy margins and being of variable colors, sometimes olive-green tinted with brown and heavily spotted with red-brown, often turning a deep rose-mahogany color when the spots are nearly confluent. The pale yellow lip base has purple stripes and shadings, and the middle lobe is purple-red edged with pink or white. A plant first appeared in the collection of Consul Schiller at Hamburg, Germany, in the fall of 1857, having been imported from Bahia, Brazil. As
Description of Species 109 was so often the case with orchids, the first plant of a given Cattleya species was sent mixed in with other plants and not purposely included. Today one can only imagine what excitement a new flowering generated from such serendipitous events! Plants of this species have never been common in collections and are now being raised from seed, even in Brazil. Two years after the original flowering a plant in the English collection of Backhouse bloomed and was sent to Kew where Hooker described it as variety 'Concolor' since it lacked the usual spotting. The flowers of this species usually appear in the late spring or early summer (the Hamilton Peak is in May). The plants like growing on plaques or in baskets with much light and air and excellent drainage for the thick roots. There is some evidence that there may be vegetative races of this species, some short, 4-5 in. (10-12.7 cm.) tall, and others taller, 8-10 in. (20-25 cm) high. Until more are grown side by side under the same conditions, it will not be possible to determine whether these differences are real or due to cultural conditions. Fowlie describes it growing in hardwood thickets on cliff faces where summer seepage and a river below help maintain high humidity despite summer heat. There is no rain in the area for three months, January through March, their summer in Brazil. Flowering takes place after heavy, spring rains. The species grows with G schofeldiana and G velutina and in some locations with G harrisoniana. Natural hybrids have been described derived from these other species of which G whitei is a natural hybrid with G warneri. It has dark crimson-red flowers. The other combinations are G resplendens, the hybrid with schofeldiana: C. lucieniana with harrisoniana; and G frankeana with velutina. There is a blue lipped form, Town', originally described as G regnelli as well as several others of no particular distinction. The form 'Memoria Roberto Kautsky, Sr/ has been illustrated several times and was distinctive because of its definite peloric form with the petals formed and colored duplicating the lip. The plant, however, was lost to cultivation since it was sent by mail to Germany from Brazil for mericloning but did not arrive and was never seen again! Fig. 61. Cattleya schilleriana, both normal, and the peloric form 'Memoria Roberto Kautsky, Sr.'. Illustration from Die Orchidee. (D. O. G.), 1973.
110 The Cattleyas I Fig. 62. Cattleya schofeldiana. Photo by Fowlie Schofeld's Cattleya Brazil Cattleya schofeldiana Rchb. f. 1882. Gard. Chron. n.s. 18:808. Subgenus: Falcata Section: Granulosae Synonym Cattleya granulosa var. schofeldiana (Rchb. f.) Veitch. 1887. Man. Orch. Plants, Cattleya, p. 36. Though described as a variety of Cattleya granulosa, this population is now generally accepted as a separate species, but not without debate, as the plants can be difficult to distinguish. Fine clones should be selfed so that we may determine its potential in our collections more often! The plants flower in the fall, and granulosa in spring, according to various books. But Hamilton's data shows an August peak for this species, and one in July for granulosa. The plants may reach 40 in. (1 m.) in height (granulosa is shorter) producing 2-5 flowers. The blooms are larger and more spotted than those of granulosa, about 4 in. (10 cm) across. They are tawny yellow, densely spotted with maroon or purple, and the lip has a dense, almost hair-like papillate covering. The side lobes of the lip are white externally and yellow internally, while the papillae are purple on the midlobe which has a white front margin. As with flowers of C granulosa, the isthmus is long and narrow, half or more of the length of the lip in extent. The petals are distinguished by their
Description of Species 111 larger size, their dilated and rounded tips and their characteristically downwardly curved shape. The lateral sepals are definitely flat and very "bowlegged". Waras, in Fowlie, aptly describes the flowers as appearing "awkward". This cattleya is named after G. Law Schofeld, who first flowered it in England in 1882, after a purchase in 1879 in Stevens' Rooms, the auction firm that handled so many orchids in those days. A sketch was sent to Reichenbach who noted its differences, especially the shape of the petals, and described it as a new species. As yet, no particular varieties have been described that are unusual. The species is poorly known. The plants prefer light and air as they are epiphytic on trees growing on rocky slopes or cliff faces. According to Fowlie, it prefers moss or lichen covered sloping trunks where the roots may extend for 2 ft. (75 cm.) or more. Its rest period is neither marked nor protracted. At least one hybrid is listed under this name in the recent RHS records, so apparently it is no longer considered only a variety of G granulosa by them. Baroness Schroder's Cattleya Colombia Cattleya schroderae Sander 1888. GarcL Chron 3rd s. 4:94 Subgenus: Cattleya Section: Cattleya Synonyms Cattleya trianaei var. schroederae Rchb. f. 1887. Card, Chron 3rd s. 1:512. Cattleya labiata var. schroderae Sander. 1888. Reichenbachia 1 (2):37. Veitch spells it Schroeder, but Duval says Schroder, Reichenbach says Schroder, and the RHS says Schroder, so we will use Schroder. Although I've also seen the name Schroederiana, it is a mistake and only leads to confusion with Cattleya schroederiana, also given by Reichenbach, which is a synonym for C. walkeriana. Plants of this species flower in April. It was named after the Baroness Schroder, wife of a distinguished English orchidiphile at that time. The confusion over the spelling probably came from an umlaut in the original German family name. This is usually translated as an "oe" diphthong into Latin or English, or the umlaut is sometimes completely ignored. The flowers are light rose to white, deeper on the lip, and are much crisped and of soft substance. They are very fragrant. The pale petals are wide and well-shaped. The throat has a distinctive orange-yellow spot. The particular fragrance, the crispness of the lip and petals and the prominent orangy spot distinguish it from Cattleya trianaei of which it was first considered a variety, and then a natural hybrid. Also, it does not have the club- like pseudobulbs characteristic of trianaei. Not much has been recorded of its origins save that it came from Colombia, New Granada as it was then called, about 1885 or 1886. It was called the Easter Cattleya due to its spring-flowering period, but it ought not be confused with G mossiae, also called the Easter Cattleya, but from
112 The Cattleyas I Venezuela. The Colombianos, according to Lager's account called these flowers lirios (lilies, now), and they came from the eastern mountains, from the San Martin plains to Cazanare. He commented on its great form but pale color and that the lack of roads made the plant difficult to get. Several varieties are described. There were at least three alba clones, pure white; also albescens, almost white; coerulea was bluish; while 'Citrina' had white petals tinted rose and the lip and throat was bright yellow with a margin of rose. The species has been a good parent thanks to the large size of the flowers and their light color that tends to be recessive. Pleasing pastel colors have been produced in hybrids, as in Lc. Orange Sherbet, the combination when G schroderae was crossed with Lc. Orange Beauty, but plants of the species itself are seldom seen today. One succumbs to the temptation, considering the name of this species and others, and as indicative of those times, to quote from Reichenbach (related in the Orchid Album regarding the naming oiPhalaenopsis mariae), "I have indeed, accepted the name, but of course left the publication to the author (Burbridge).... It is painful to me to write thus. ... I have always declined to name plants in honor of ladies whom I have never seen, and who do not, as far as I know, stand in any special relation to plants." We can assume that Sander had less high minded ideas. Fig. 63. Cattleya schroderae alba. Plate 46 from Reichenbachia, as Cattleya labiata trianaei 'Schroederiana Alba', 1888.
Description of Species 113 Skinner's Cattleya Guatemala to Panama Cattleya skinneri Bateman. 1838. Orch. Mex. and Guat t. 13. Misc., p. 83. Subgenus: Circumvolva Section: Moradae Synonym Epidendrum huegelianum Rchb. f. 1862. Walk. Ann. Bot 6:312. The stems of this species are 9-12 in. (22-30 cm.) tall, swelling from a narrow base, with two leaves up to 6 in. (15 cm.) long. There are 5-9 or more flowers 3 in. (7.6 cm.) across. On well-grown show plants I've counted as many as 14 flowers in one head. Except for the white area in the throat of the lip, the coloring is uniformly rose-purple with a definite crystalline texture in good light. The flowers bloom from March through June. The plants like a definite, cool, dry dormancy over the winter in order to flower well. The blooms develop from sheaths, sometimes already brown, produced the previous summer. One of the most common orchids in Costa Rica, it has been designated their National Flower, called the Guaria Morada, the Purple Guaria, and has been featured on both coins and stamps. Another familiar Fig. 64. Cattleya skinneri
114 The Cattleyas I Fig. 65. Cattleya skinneri oculata alba name is Flor de San Sebastian. In Guatemala it is known as the Candelaria. It is found growing on trees in open forests on which the growths may completely cover large branches with hundreds of plants. Stormy winds dislodge chunks of plant growth so that collecting various clones has been a simple matter of beating the cows to the fodder—at least in my experience in Guatemala! Plants were first found by George Ure-Skinner in 1836 in the warm, low parts of Guatemala near the Pacific, subsequently by Oersted in Nicaragua, and Warscewicz in Costa Rica. The all white, truly alba form was brought first from Costa Rica by Endres, and was considered a superb plant. True whites are still rare and only a few clones have ever been discovered, two or three in Guatemala, and more for some reason, in Costa Rica where they have been comparatively more common, but none, according to Dunn, in Panama. Many of the so-called albas, however, are simply pale forms or actually have a spot of purple at the base of the lip. These latter plants have been referred to as variety oculata, a good way to distinguish them from the true albas. If your plant still has alba on it, as most do, change the label to oculata alba to reflect that purple spot. Such plants breed as purples in crosses or selfings, so we are still waiting for the white skinneri that will also breed white. In the literature a Cattleya Belairensis 'Alba' is recorded as a white hybrid of intermedia alba and skinneri alba that was white, so apparently it can happen, but no one has succeeded in recent years. That combination should certainly be tried again! But with which intermedia alba? Which skinneri alba? There is actually comparatively little variation among plants and
Description of Species 115 flowers of this species, but some forms may have superior shape with overlapping wide petals, such as 'Hetti Jacobs' FCC/AOS. One distinctly pink type has been observed, one clone is definitely 'Lilac' and the other shows a small purple petal splash against a pale background. Another is definitely peloric, Ivlem. Matilde de Herrera' JC/AOS, with petals the same color as the lip and with a prominent, central, white band. These variants have been observed in Guatemalan collections and represent thousands of plants that have been screened for possible deviations from the norm. Mostly, the species has garnered cultural awards for good specimen plant growers, such as the clone 'Isabel', belonging to Marie Eugenia de Roy in San Jose, Costa Rica, and awarded by the American Orchid Society in 1984 with 52 inflorescences and 520 flowers! This single plant was 4 V2 ft. (1.5 m.) across; a record among records for all time! Although cleistogamous populations of both C aurantiaca and C deckeri are known, this process of self pollination does not seem to occur in C skinneri. This species is an excellent one for the beginner. Tolerant of heat or lack of humidity, it can readily summer out-of-doors hanging in an apple tree to complete its growth, then flower the following spring on the windowsill in full light. Cattleya guatemalensis, the natural hybrid swarm between this species and C. aurantiaca is discussed separately. Slender-stemmed Cattleya Brazil Cattleya tenuis Campacci and Vedovello. 1983. Circulo Paulista de Orquidofilos 1: 1-3. Subgenus: Schomburgkoidea Just when we think that all the cattleyas have been described, another one makes its appearance! Often they exist as one or two plants of a natural hybrid combination, not a real population, endemic though it may be. Other times the species status seems confirmed. This implies that the taxon has distinguishing features, key characteristics, if you will, which differentiate it from other species and will continue for generations in nature. Such is the case with G tenuis, described originally in a Brazilian journal and reprinted with more complete detarls by Fowlie in the Orchid Digest (July- Aug., 1986) in which he describes a trip to the Chapada Diamantina in inland Pernambuco. Fowlie states that it "was the thinnest Cattleya species for its height we had ever seen." The plants are bifoliate, with thin, narrow, pointed leaves with the habit of C bicolor. The thin stems are as much as 3 ft. (1 m.) or more, tall. They grow on small trees 10-15 ft. (3-4.5 m.) above the ground and have extensive root systems running several feet along the trunks. The trees were in dense semi-arid thickets on hilltops at 3 000 ft. (about 1000 m.). The dense branches helped support the plants so they could reach the light and air. The flowers appear a red-tan to a rich mahogany color with a rose- purple lip bordered in rose or white. Occasionally a few dark spots appear
116 The Cattleyas I on the sepals and petals. The lateral lobes of the lip are pale and do not completely enclose the column, its curved back protruding between them. The petals, in typical bifoliate fashion are narrower than the sepals and may have wavy margins and blunt tips. The broad isthmus and midlobe, together with the vegetative habit readily place this species among the Schomburgkoidea along with G elongata and its closer relatives. In fact, as with the stems of G elongata and G bicolor, this cattleya may also be propagated from dormant stem cuttings. It also hybridizes naturally with C. elongata though no name has yet been proposed for this combination. This species flowers in the Brazilian fall which mean a corresponding season here, though not the same month. The area has two rainy seasons per year when it is cool and humid, separated by a period of hot and dry weather. It appears that if one can grow G elongata one could also grow this species, though elongata is a rock climber, and this one prefers trees, but they both like light and air and tolerate heat. Not much else is known of this species at present. Fig. 66. Cattleya tenuis. Drawing from type description in Circulo Paulista de Orquidofilos, 1983.
Description of Species 117 Fig. 67. Cattleya tenuis. Photo by Marsh
118 The Cattleyas I Dr. Triana's Cattleya Colombia Cattleya trianaei J. Linden and Rchb. f. 1860. Bot. Zeit 18:74 Subgenus: Cattleya Section: Cattleya Synonyms Cattleya labiata var. trianae Duchartre. 1860. Jour. Soc. Imp. Hort p. 369, t.13. Epidendrum labiatum var. trianaei Rchb. f. 1861. Walp. Ann. Bot. 6:315. Cattleya kimballiana L Linden and Rod. 1887. Lindenia 2:85, t. 89. Cattleya bogotensis Linden ex Morren. 1897. Diet Icon. Orch, p. 5. Another popular species over the years, this vies with Cattleya mossiae in the number of named varieties and the thousands of plants imported after its discovery. Cogniaux lists about 125 clonal names in the Flora Brasiliensis, and the Burrage collection in Massachusetts, USA, formed in the 1920s, alone contained more than 2800 plants of this species. Reichenbach received a plant from Linden, and named it G trianae in 1860 honoring Dr. Triana, a botanist and citizen of Bogota, Colombia. Earlier a plant had been sent from the Magdalena River in Colombia to Rucker in England who flowered it in 1851. Lindley named this plant G quadricolor, but that name was not validly published until 1864 by Bateman. Some have considered this C quadricolor a synonym of C trianaei but others, including myself, consider it the proper name for a different Cattleya species, not trianaei. (Please see under G quadricolor.) As of the 1961-70 Addendum to Sander's List of Orchid Hybrids published by the RHS the name is to be spelled with an i at the end, a technicality about forming the proper Latin ending for a species name indicating male gender. The former ae indicates it was named after a female, the complication being that Dr. Triana's name already ended in an "a", and only adding an "e" changed his gender. Now, with the i added as well, all is secure once again! There are so many named varieties, some with horticultural names indicating the largest, the most delicate, the grandest, the white color, 'Blue Bird', etc.; while others read like a roster of the orchid elite of the time T)odgson', 'Massange', 'Colman', 'Hard/, 'Day7, 'Provost Russel', 'Osman', 'Backhouse', 'The Czar7, etc. There were even his and hers: 'Baron Schroder7, 'Baroness Schroder7, 'Mr. Lee', 'Mrs. Lee'; and, for a change, even the Americans were in on the act: 'A. C. Burrage', 'Mrs. Burrage', 'F. E. Dixon', TS. Corning7, 'Clement Moore, 'The President7, and so on. Some of these varieties are still in cultivation. They can be outstanding in size of the petals and width of the dorsal sepal, and generally have dark color and a fine configuration that have led to many of our best hybrids. The flowers of this species are 3-4 in number and 6-9 in. (15-22.8 cm.) across. They vary from white to rose to amethyst-purple, most forms being a medium color of lavender. The lip is more tube-like than those of other cattleyas, narrower and less crisped. The tube is lavender-colored like the petals with the front a rich crimson-purple and the throat white and orange. These plants bloom in the winter, December to April, real Winter Cattleyas, or Christmas Cattleyas as the old common names indicate. They
Description of Species 119 Fig. 68. Cattleya trianaei 'A. C. Burrage'. Photo by Girard peak here in February according to the Hamilton data, but in Colombia they were Flor de Mayo. The species is widely distributed in the mountains of Colombia. The strong, club-shaped pseudobulbs help distinguish this cattleya from the others also found there. It is present on all three Cordilleras (see discussion under C quadricolor), and a variety of locales are mentioned as areas from which plants were shipped: Magdalena, Popayan, Medellin, Bogota, Buga, Ibague. Lager particularly mentioned the Dept. of El Tolima as a source for C. trianaei, and Condinamore on the banks of the Rio Pacho as a locale for the almost-white form called bogotensis. I recall seeing a village church near Medellin that had been decorated with C trianaei plants all along the ridge and eaves of the roof and along the wall surrounding the grounds. They were held in place by a plastering of fresh cow manure renewed annually I was told, and were growing very well to flower beautifully during the Nativity Celebrations. Is there a cultural hint in this observation that we can apply to more modern growing conditions? Some of the outstanding forms were (are) undoubtedly natural tetraploids, which is why certain hybrids quickly become outstanding, though the reason for their quality was not understood until chromosome counts and stomatal measurements became possible years later. We have only really understood the role of polyploidy in hybridization since the middle 1950s, largely through the research of Prof. Gustav Mehlquist. Even though the best clones were always used in making crosses we now know why they worked out so well. One example, however, did not meet with much success. In the 1950s a white trianaei turned up in a shipment to John Zinsky in New Jersey, USA. It was an outstanding clone, at a time
120 The Cattleyas I when white orchids were all the rage with Bow Bells, Joyce Hannington, and other tetraploid whites sweeping the field. This plant, called variety Aranke Germaske' after his mother, was eventually sold for a large sum to an orchid breeder in Florida, but it never served as a parent as it turned out to be a triploid, and triploids are generally sterile. The competition to obtain the plant was intense, and yet no one then thought of counting the chromosomes first. This was and still is a difficult procedure to do accurately but it might have saved a lot of money had it been done. I was surprised recently to see seedlings from a cross made from this clone, so concluded it was not always completely sterile. With three million eggs in a cattleya ovary some are bound to be normal diploid combinations, or even tetraploids, and could thus give rise to a limited number of viable seeds, even from a triploid mother plant. The same could apply to the pollen. In any case, C trianaei has contributed greatly to our understanding of modern cattleyas, more than any other. Fig. 69. Cattleya trianaei Aranka Germaske7 FCC/AOS
Description of Species 121 Fig. 70. Cattleya velutina. The flowers on the right are a darker colored form than usual. Photo by Ellis Velvety Cattleya Brazil Cattleya velutina Rchb. f. 1870. Gard. Chron. 30:140, 1373. Subgenus: Aclandia Synonyms Cattleya fragrans Barb. Rodr. 1882. Gen. et Sp. Orch. Nov. 2:158, 301. Cattleya alutacea var. velutina Barb. Rodr. 1882. Gen. et Sp. Orch. Nov. 2: 157, 158, 301. Reichenbach was apparently impressed by the "velvety" hairs on the labellum of these flowers, a characteristic that was scarcely mentioned in subsequent descriptions, and one that I promise myself I will check out on the next fresh flower I see—and I always forget! Perhaps it was only an impression as a result of examining the dried herbarium material sent to him for naming. Reichenbach must have been incredibly busy with all the cattleyas, not to mention the many other orchid plants, sent to him for identification. The competition was such that he apparently also named (witness the multitude of synonyms which bear his authorship) many variant plants as species that were only color forms, as did other taxono- mists of the time. In some cases previously named plants were given another name, particularly in cases where the author wished to please a patron, even though such a name could not stand. There must also have been a significant, sometimes perhaps deliberate, lack of communication
122 The Cattleyas I among the taxonomists. In addition, good library facilities, able to provide obscure books and journals were not widely available, and of course it was not as simple a matter to visit various collections and herbaria as it is today. J. Barbosa Rodrigues always seemed to miss out on the first naming of Cattleya species in spite of writing the first orchid flora for the whole of Brazil. Vellozo was also unfortunate in that he wrote his Florae Fluminensis, meaning the plants of Rio de Janeiro state, in 1790 but the plates were not published until 1825 and most of the text in 1881, so that the majority of his names also became synonyms. Reichenbach not infrequently changed his mind about cattleyas calling one a separate species one time, a variety of another species another time, and even switching genera from Cattleya to Epidendrum and back! Not much wonder the synonymies are complicated when put all together. One marvels at the speed with which Reichenbach and others published, usually the same year the plant was imported or flowered, another indication of the competition. We could not easily do that today! In any case, this species was published first as a hybrid of C. bicolor with C. guttata of some type or other with which it had been imported by chance. It was flowered in the collection of J. Broome at Didsbury, near Manchester, England, who had imported the plants. Later importations of additional plants proved that it was a species not a hybrid. We recognize the plants as distinctive with their reed-like stems 10- 15 in. (25-40 cm.) high producing two or three pointed leathery leaves. Flowers are 1-4, often 2, and have a unique spicy sweet fragrance. The flowers are often of poor shape, the segments crisped and reflexed giving an impression of curliness, so that selection of clones for breeding is important. The blooms are 3-4 in (7.6-10 cm.) across, with orange-yellow-mustardy sepals and petals spotted with purple. The lip is white, tinted with yellow and veined with violet, with small side lobes that incompletely cover the column. The flowering period is generally late summer, August and September, according to Hamilton. In their natural environment they grow in small clumps of brush scattered on plains where there is plenty of light but little of which directly reaches the plants. The Pessoas describe it growing with G bicolor in coastal mountains with warm summers and cool winters and year around rainfall. There are, as with other cattleyas, certain ecotypes that do not always grow in the identical type of habitat. This species has not done particularly well in modern collections and tends to die out after a time, possibly a reason for so few hybrids or varietal designations.
Description of Species 123 Violet Cattleya Guyana to Peru, including Venezuela, Ecuador and Brazil Cattleya violacea (Kunth) Rolfe. 1889. Gard. Chron. 3rd s. 5:802. Subgenus: Schomburgkoidea Synonyms Cymbidium violaceum Kunth. 1816. Humb. andBonpl Nov. Gen et Sp. PI 1:341. Cattleya superba Schomb. ex. Lindley. 1838. Sert Orch., t. 22. Cattleya schomburgkii Lodd. ex. Lindley. 1838. Sert. Orch, sub t. 22. Cattleya odoratissima Don. 1840. Florists Jour., p. 185. Epidendrum violaceum Rchb. f. 1861. Walp. Ann. Bot 6:318. Epidendrum superbum Rchb. f. 1862. Xen. Orch. 2:32. This is a deliberate growing species with specific cultural requirements, yet it has the widest distribution in nature of all cattleyas. At one time botanists would have said such a distribution indicated an older, more ancestral form than those species with a small localized distribution, such as is more characteristic of other cattleyas. But we now know that this is not always the case. This species, is usually found growing on tree trunks along rivers in hot, steamy jungles, and has thus spread itself over the Orinoco and northern and western ends of the Amazon basin. Obviously, the plants require heat and moisture while growing, and it is recommended that they be grown continuously without a dormant season. They like slabs or Fig. 71. Cattleya violacea
124 The Cattleyas I baskets which provide perfect drainage for the coarse roots. They flower from June to August. The other species showing the same requirements and partially overlapping the same regions is C eldorado. Their natural hybrid is G brymeriana. The stems are 10-12 in. (25-30 cm.) high with two rounded leaves. They bear 3-5 or more flowers of heavy texture, 3-4 in. (7.6-10 cm.) across. They are uniformly bright rose-purple, sometime suffused or tipped with white at the ends of the segments. The lip is crimson-purple blotched at the base with yellow and white. It is a very beautiful species, one of the most striking. It was first found by Humboldt, a traveler along the Orinoco, and subsequently rediscovered by Dr. Martius, a German naturalist who explored in northern Brazil. It was introduced into England in 1838 by Sir Robert Schomburgk, who sent it back from his exploration of Guyana (British Guiana). Plants are still being sent out of that country for today's collections. There are a few named varieties including white and blue, and one called 'Splendens' with larger, darker colored flowers. A few hybrids have been produced which are outstanding for deep color and heavy substance. Epicattleya Purple Glory, a Moir hybrid of this species with Encyclia adenocaula (nemorale) is a good example. Dunsterville calls G violacea the "King of the Guianas". Fig. 72. Calileya walkeriana
Description of Species 125 Walker's Cattleya Brazil Cattleya walkeriana Gardn. 1843. Lond. Jour. Bot. 2:662. Subgenus: Rhizantha Synonyms Cattleya bulbosa Lindley. 1847. Gard. Chron., p. 623. Epidendrum walkerianum Rchb. f. 1862. Walp. Ann. Bot. 6:416. Cattleya gardneriana Rchb. f. 1870. Gard. Chron., p. 1473. Cattleya princeps Barb. Rodr. 1877. Gen. et Sp. Orch Nov. 1:68. Cattleya schroederiana Rchb. f. 1883. Gard. Chron. n.s. 20:102. The plants of this species have stout rhizomes with bulb-like pseudo- bulbs up to 6 in. (15 cm.) high and produce one or, usually, two leaves 2-4 in (5-10 cm.) long. The 1-2 flowers are rosy purple to pink-lilac in color and about 4 in. (10 cm.) across. The lip is a richer color with a white or pale yellow base and an anterior border of amethyst-purple. The flowers are very sweetly scented. The plants can bloom almost any time of year according to Hamilton, but show two flowering peaks, one in May, the other in December. The flowers form from small specialized shoots about 1-2 in. (2.5-5 cm.) tall that emerge from the rhizome near the base of the previous growth. This stem is first clothed with green bracts that soon dry, after which the flowering peduncle appears from the apex. After flowering a new bud is formed at the base, which develops into the next foliar stem. In addition to producing flowers on a separate growth, only characteristic of two or three other members of the entire Laeliinae complex (i.e. Epidendrum stam- fordianum, Alamania punicea), flowers are also produced terminally from leafy growths in the usual fashion. Both processes may occur on the same plant though ordinarily not at the same time. The plants are popular in Brazil due to their annual free-flowering qualities and ability to withstand rigorous climatic conditions with little care. Some of the best I ever saw in cultivation were growing on a cow's skull that had been stuffed with shredded tree fern and hung on a concrete- block garden wall in full sun in Sao Paulo. The plants completely covered the skull, the fleshy roots winding everywhere and finally extending over the concrete blocks for considerable distances. They were probably taking to the lime of the skull and the blocks, duplicating their natural habitat on the rocks of limestone cliffs along rivers. The plants should dry quickly after rain or water, an essential for their proper survival. Cattleya walkeriana was discovered about 1839 by Gardner during his travels in Brazil, and was named after Edward Walker who accompanied him on some of his journeys. A few years later, Libon, a collector, sent plants back to Belgium. In May, 1847, Lindley identified a cattleya of unknown origins as G bulbosa, by which name the plant became known for a time. Finally, the matter was corrected with the proper name receiving priority. The bulbosa epithet is now used in Brazil as a varietal name to distinguish plants that have short, almost round psuedobulbs, darker colored flowers and, says Fowlie "more symmetrical, less ungainly, flowers". It is rarer than the usual forms and has a more restricted distribution.
126 The Cattleyas I Fig. 73. Cattleya walkeriana. A semialba form. This species is spread over a large area of coastal B razil where in some cases it has hybridized naturally with other cattleyas. There is still confusion about the status of this species as related to C dolosa and G nobilior (please see Fowlie), but we can hope that eventually all will be clear. The flowers present problems from a judging point of view as the petals usually twist through several degrees so that they are at an angle to, instead of flat with, the rest of the flower. It is, however, possible to find non-twisting clones, a quality judges look for. The fragrance and the dwarf habit are passed on to its hybrids, making it a popular species today in miniature cattleya breeding. Both white and semialba clones have been awarded, also a blue werkhauseri semialba clone, but they are still rare and expensive. Some of these varieties are being grown from selfed seedlings, while others are being mericloned. Variety concolor is an overall rose color comparable to the older 'Rosea'. One variety in particular, 'Pendentive', an alba type, may actually be an alba form of Cattleya obrieniana, or C nobilior. The matter is still under debate, but meanwhile look at the painting in Pabst and Dungs' Orchidaceae Brasiliensis. C schroederiana is considered by some a natural hybrid of C walkeriana and G loddigesii. A Latin technicality affects the name of this species as it does all others named after people whose names end in -er. According to the 1961-70 RHS Addendum, "latinised epithets in the adjectival form based upon personal names ending in -er should be read as omitting the letter i following the er." The ending can be either ana or anum. Thus walkerianum became walkeranum: sanderiana became sanderana, etc. This usage originated with the 1966 International Code of Botanical Nomenclature and was subsequently adopted by the International Orchid Commission, but this usage is only optional, not imperative, as I understand it. It is followed today by the Royal Horticultural Society, but not necessarily by others, including the American Orchid Society Bulletin.
Description of Species 127 Fig. 74. Cattleya warneri. Plate 8 from Select Orchidaceous Plants, 1862. Warner's Cattleya Brazil Cattleya warneri Moore. 1862. Warner's Set Orch. 1: t 8. Subgenus: Cattleya Section: Cattleya Synonyms Cattleya trilabiata Barb. Rodr. 1877. Gen et Sp. Orch Nov. 1:69. Cattleya labiata var. warneri O'Brien. 1883. Gard Chron. n.s. 20:372, f. 57. Cattleya silvana Pabst 1976. Bradea 2 (12):68. This species has characteristics close to Cattleya labiata, which is perhaps not surprising since both come from Brazil. C warneri comes from southerly Brazil, however, instead of more northern parts, and the usually broad leaf with short pseudobulb, and the purple pigmentation present in the leaf, make it readily distinguishable. Its habitat is Espirito Santo and Minas Gerais, from where the original plants were sent by Binot to Low and Co. in England. Robert Warner flowered it first in his collection at Broomfield in 1860. Warner possessed the finest collection of orchids in England and in 1865 had more than 600 cattleya flowers in bloom at one time. This and other interesting details of his life are reported by Duveen (1986). The Binot company is still in the
128 The Cattleyas I orchid business, Orquidario Binot being one of the most respected firms in South America, being operated by the third and fourth generation, the Verboonens. The flowers number 3-5, are large, 6-8 in. (15-20 cm.) across, and of an open and wingy shape. Sepals and petals are rose-shaded with amethyst-purple, while the lip is somewhat darker, the expanded portion red-purple marked with purple veins. The finely fringed margin in front is rose-mauve, while the throat is orange-yellow striated with lilac or white and there are white "eye" patches. There is a characteristic sweet fragrance likened to rose mixed with lily-of-the-valley. The plants bloom in late spring or early summer. The spathe is often double. A few better varieties have been noted in the past, including a white and a blue. But unfortunately there seem to be more than the usual number of poor clones in the average run of plants, many having reflexed or rolled segments and a generally poor habit. A good form really stands out but will be difficult to find. The natural hybrid of G warneri with C. leopoldii is C. patrocinii. More recently Pabst described a separated population on the Serras of the Rio Pardo headwaters as a new species, C silvana. Fowlie reports in Orchid Digest (May-June, 1985.), that, after a visit there, it is a dark-colored, better formed variety of G warneri. The natural hybrid of C. schilleriana and G warneri comes from Espirito Santo and is not uncommon. It was named G whitei by Reichenbach in 1882. Fig. 75. Cattleya warneri concolor
Description of Species 129 Fig. 76. Cattleya warscewiczii Warscewicz's Cattleya Colombia Cattleya warscewiczii Rchb. f. 1854. Bonplandia 2:112. Subgenus: Cattleya Section: Cattleya Synonyms Epidendrum labiatum var. warscewiczii Rchb. f. 1861. Wb//?. Ann. Bot. 6:315. Cattleya gigas Linden et Andre. 1873. Ill Hort 20:70. Cattleya labiata var. warscewiczii Rchb. f. 1883. Gflrd. Chron. n.s. 19:243. Cattleya gloriosa Carriere. 1885. Rev. Hort p. 333. Cattleya imperialis Hort 1887. Veitch's Man Orch. Plants, Cattleya, p. 28. Cattleya sanderiana Hort 1896. Diet Icon des Orch., Cattleya, pi. 1. Plants of this species produce some of the largest flowers in this section with two or three that are 7-9 in. (22.8 cm.) across. The sepals and petals are rose-mauve, and the lip is large and broad, rich purple with
130 The Cattleyas I bright yellow "eyes". This cattleya flowers in the summer and requires more exacting growing conditions than other cattleyas for good flower production. It needs a definite resting period reinforced by keeping the plants dry. It does well hanging in baskets and likes a great deal of light and moderately cool conditions. The fragrance has been compared to hyacinth mixed with rose geranium. In Colombia it is called Flor de San Juan or Flor de San Roque. Since St. John's escape from martyrdom was on May 6, and his feast day is Dec. 27, I'm not certain how he is connected to this species. Warscewicz discovered this cattleya about 1848 in the province of Medellin, but his plants were lost in a shipping accident. Reichenbach had to publish his description of the new species from the pressed herbarium specimens that did arrive. More plants were later received by Linden from Dr. Triana of Bogota, but it did not become common in collections until Roezl more or less rediscovered it in 1870 in Medellin. It was found over a large area of all three Cordilleras in Colombia (see Cattleya quadricolor), from Frontino, source of variety 'Imperialis', south to beyond Medellin, and from LaPalma to beyond Flores in the eastern range, source of the form 'Sanderiana'. Lager stated the species was found much in Antioquia, the 'Sanderiana' in Cundinamarca. The varietal name gigas, indicating the large size of the flowers, was originally used for plants with finer than usual, dark rose petals and a darker purple-magenta lip. Soon this name began to be used for the entire species, probably because it was easier to pronounce than warscewiczii, but this is not an acceptable practice. Many other varieties, most of which are no longer in cultivation today, were named, perhaps the most famous of which was 'Firmin Lambeau', a white form much used in breeding white cattleya hybrids. It was discovered by John Lager Sr. who sold it to Stuart Low and Co., Crow- borough, England, who named it. A comparably important clone was the semi-alba 'Frau Melanie Beyrodf, usually shortened to 'F.M.B/. A plant or two of these clones may still exist, and, if so, should be mericloned to preserve them as "International Historical Treasured Parents". The same is true, of course, of many other clones of various species if plants could still be found at this late date. These highly selected clones represent invaluable portions of the gene pools of these species and may never be duplicated again, especially in light of the present rate of forest destruction in the tropics. If they should also be virus-free, it would be a miracle after all this time, but they would be worth preserving under any circumstance. In connection with the size of gigas variety flowers, I recall one older French hybrid in the collection of John Lager in Summit, New Jersey, USA. It had flowers measuring 12 in. (30 cm.) across, almost unbelievable if not seen. It was not a great specimen for its habit was poor, the sepals and petals were long and ungainly, comparatively narrow and pointed, and furthermore sagged at the tips. But, this hybrid did demonstrate the potential for a flower of a size that cannot be forgotten. Fig. 77. Cattleya warscewiczii 'Franconvillensis'. Plate 505, Orchid Album, 1907, as Cattleya gigas Tranconvillensis'.
Description of Species 131
133 CHAPTER 6 Questionable or Doubtful Species Other species of Cattleya have been published, but we still know little or nothing of them beyond brief initial descriptions. There is no way to know if they are single plants that turned up as a result of natural hybridization, probably the most likely explanation in most cases, or whether they may indeed represent species. So far as the horticultural world is concerned they have not been available in catalogs nor described in journal articles. But the same could have been said of C. araguaiensis and G kerrii a short while ago, before recent information appeared. We now know that these plants do represent species populations even though they are still rare in nature and in collections. Cattleya tenuis is still more recent. The still questionable species, with whatever information I can locate, are listed below. I cannot say the list is absolutely complete, but I know of no others at the present writing. Cattleya brasiliensis Klinge. 1898. Ada Horti Petropolitani 17:7, t.l. This plant appeared in a shipment of Cattleya bicolor and was thought to be a natural hybrid of C bicolor and C aclandiae. One look at the illustration in Fowlie or Pabst and Dungs tells you that those are not the parents. It does appear to be a hybrid, but more a combination between C. bicolor and G harrisoniana. Any hybrid of aclandiae, we know today, will likely have more spots and a dwarf plant habit, both of which are dominant genetic qualities. In addition, in Espirito Santo, Brazil, where bicolor grows and this plant was found, harrisoniana is also found. Since that combination was already named G wilsoniana, and Rolfe reported in 1905 a duplication of the taxon by crossing C. bicolor and C harrisoniana in cultivation, Cattleya brasiliensis would become a synonym under that name. (See C bicolor). Cattleya brownii Rolfe. 1894. Kew Bull, p. 156. This plant was imported from Minas Gerais, Brazil, and appears to be a form of Cattleya harrisoniana. Although listed in the index of Pabst and Dungs, it is frustratingly not to be found in the text of the book. There is, according to Fowlie, no type specimen and no picture of this species, so the original description is all
134 The Cattleyas I there ever will be. Cattleya elatior Lindley. 1831. Gen. Sp. Orch. PL, p. 117. Fowlie, after studying the type, believes this to be some sort of variant of Cattleya guttata, as Lindley had also decided. Pabst, on the other hand, concluded it was a synonym of C porphyroglossa. In any case, the name does not appear to represent a separate species. Again, it is listed in the index of Pabst and Dungs, but is not in the text. Cattleya silvana Pabst. 1977. There is a color illustration 831A under this name in the Pabst and Dungs, Vol. 2. It is undoubtedly a hybrid with Laelia purpurata, whatever the other parent may be. It does not appear to warrant a new name except as a hybrid. Cattleya tetraploidea Brieger. 1978. This is a women novum in the 3rd edition of Schlechter's Die Orchideen, on p. 597 of the tenth part, for Cattleya measuresiana (Will.) Blumensch., not the measuresiana Williams. Brieger says he found the only remaining two examples of a once larger population in the mountains between Rio de Janeiro and Sao Paulo, Brazil. He noted that it could be differentiated by its longer stems, smaller leaves and double chromosome number of 80. The flowers, however, were identical to those of C. bicolor. Since these qualities are insufficient reason for a new species epithet, deserving only a clonal designation, we can safely say that this name, whatever the technicalities, is synonymous with one of the named races of C bicolor. Cattleya tigrina, discussed under C. guttata, may be deserving of species status. Further analysis of species characteristics and natural populations could answer the questions about it.
135 Selected References for Additional Information Adams, H. and E. Anderson. 1958. A conspectus of hybridization in the Orchidaceae. Evol. 12: 512-518. B raem, G. 1984. The Brazilian Bifoliate Cattleyas. Brucke-Verlag Kurt Schmer- sow. Hildesheim. Braem, G. 1986. Unifoliate Cattleyas. Brucke-Verlag Kurt Schmersow. Hildesheim. Brieger, F. G., R. Maatsch and K. Senghas. 1981. Schlechter's Die Orchideen. Third Edition. Verlag Paul Perry. Berlin. Cogniaux, A. 1898. Orchidaceae II, Tribus VII Laeliinae. In Martius' Flora Brasiliensis, Vol. 3, part 5. Dressier, R. L. 1981. The Orchids, Natural History and Classification. Harvard University Press. Duval, L. 1907. Traite de Culture Pratique des Cattleyas. Octave Doin. Paris. Duveen, D. 1986. Cattleya warneri Moore. A historical note concerning Mr. Robert Warner. Orchid Digest 5 0(5): 177. Fowlie, J. A. 1977. The Brazilian Bifoliate Cattleyas and Their Color Varieties. Azul Quinta Press. California. Hamilton, R. M. 1967. Orchid Flower Index. 1979. Orchid Flower Index, Vol. 2. Published by the author. Vancouver, B.C. Hamilton, R. M. 1972. Index to Plant Illustrations. Published by the author. Vancouver, B.C. Hamilton, R. M. 1986. When Does It Flower? Second Edition. Published by the author. Vancouver, B.C. Handbook Committee. 1985. TheHandbook ofOrchid Nomenclature and Registration. Third edition. International Orchid Commission. London. Hetherington, E. 1984. Purple Cattleyas—I. The discovery and development years. Am. Orch. Soc. Bull. 53:1018-1028. Horich,C.Kl. 1980. Cattleyas of Costa Rica, Orquidea (Mex.) 7(4): 289-301. Menezes, Lou C. 1987. Cattleya labiata and its color varieties. Orchid Digest 51(3):105-138. Pabst, G. and F. Dungs. 1975, 1977. Orchidaceae Brasiliensis. Vol. I and II. Brucke-Verlag Kurt Schmersow. Hildesheim.
136 The Cattleyas I Pessoa, C. and A. Pessoa. 1986. Brazilian bifoliate cattleyas. Am. Orch. Soc. Bull. 55:691-695. Rolfe, R. A. 1895. Cattleya—What constitutes a species? Orchid Review 3:266-270. Smith, F. 1984. Bifoliate cattleyas and their culture. Am. Orch. Soc. Bull. 53:690-698. Stern, W. L. and A. M. Pridgeon. 1984. Ramicaul, a better term for the pleurothallid "secondary stem". Am. Orch. Soc. Bull. 53(4): 397-401. Veitch, J. and Sons. 1887. Cattleya. Manual of Orchidaceous Plants. Chelsea. White, E. A. 1939. American Orchid Culture. Second edition. A. T. De La Mare Co. New York. Williams, B. S. 1894. The Orchid Grower's Manual. Seventh edition. London. Withner, C. L. 1948. The genus Cattleya. Am. Orch. Soc. Bull. 17:296-312, 363-369. Withner, C. L. 1965. Introgression among cattleyas and some possible implications. Proceedings of the Sixth Annual Orchid Short Course. University of Florida, Gainesville. Withner, C. L 1980. The bifoliate cattleyas. Proceedings of the Ninth World Orchid Congress. Bangkok. Withner, C. L. 1981. Le Cattleye. Edizioni Lativa. Rome. Withner, C. L and H. Adams. 1960. Generic relationships and evolution among the cattleyas and their relatives. Proceedings of the Third World Orchid Conference. London. Withner, C. L. andj. Stevenson. 1968. The Oncidium tetrapetalum-pulchellum syngameon. Am. Orch. Soc. Bull. 37:21-32. Woolfson, G. 1978. Ten Year Index to Plant Illustrations. Twin Oaks Books. Lowell, Michigan.
137 Plant Name Index Aclandia (subgenus) 12, 19, 20, 21, 23 Acranthemum (section) 18 Acranthemum (subsection) 17 Alamania punicea 9, 14, 125 Allenara 15 Anacardium excelsum 48 Arizara 16 Artorima 14 Aurantiaca (section) 18 Aurantiacae (section) 19, 20, 21 Azucenas 98, 105 Barkeria 14 Basiphyllaea 14 Bishopara 15 Brassavola 9, 14, 15, 16 Brassocattleya 14 Brassolaeliocattleya 15 Broughtonia 9, 14, 15 Brownara 15 Buiara 15 Candelaria 114 Cattkeria 14 Cattleya (Group I) 33 Cattleya (genus) 14, 17, 18, 19, 20, 21 Cattleya (Group II) 33 Cattleya (section) 19, 20, 21, 22 Cattleya (species) 35 Cattleya (subgenus) 12,13,18,19,20,21, 22 Cattleya aclandiae 17, 23, 36, 108, 133 adandiae schilleriana 108 alexandrae 57, 58 aliciae 97 alutacea velutina 111 [Cattleya] amabilis 73 amethystina 73 amethystoglossa 23, 37 amethystoglossa 'Pinkie' 38, 45 amethystoglossa 'Sanderae' 38 aquinii 73 araguaiensis 12, 39, 78, 97, 133 arembergii 86 aurantiaca 6, 22, 26, 40, 42, 63, 65, 78, 96, 104, 115 aurantiaca 'Miami' 41 aurea 11, 26, 42, 70 autumnalis 46 bassetii 88 batalinii 103, 104 Belairensis 'Alba' 74, 114 bicolor 13, 20, 23, 28, 38, 44, 52, 72, 115, 116, 122, 133,134 bicolor brasiliensis 44 bicolor grossii 44 bicolor minasgeraisensis 44 blossfeldiana 92, 107 bogotensis 118, 119 bowringiana 46, 81 bowringiana 'Kay Francis' 47 bowringiana 'Splendens' 47 bowringiana 'Tower Grove' 47 bowringiana Triumphans' 47 brasiliensis 45, 49, 73, 133 brownii 71, 133 brymeriana 56, 124 bulbosa 125 Candida 104 caucaensis 104 chocoensis 104
138 The Cattleyas I [Cattleya] chrysotoxa 42 citrina 18 claesiana 76, 87 crashleyi 87 crocata 55 cupidon 94 dawsonii 88 day ana 68 dedten 47, 115 dijanceana 103 do/osfl 49, 126 dormaniana 12, 22, 51 dowiana 27, 42, 52, 70 dowiana aurea 42 dowiana aurea alba 71 dowiana chrysotoxa 42 dowiana 'Rosita' 54 duveenii 73, 86 edithiana 97 elatior67, 134 eldorado 55, 124 eldorado 'Ornata' 56 eldorado 'Splendens' 56 eldorado 'Virginalis' 56 elegans 60 elongata 45, 57, 116 elongata "alba" 58 epidendroides 91 eximia 49 flavida 91 flaviola 76 forbesii 12, 59, 67, 68, 73, 76, 86 fragrans 121 frankeana 109 /kZitc 59 gardneriana 125 gaskelliana 22, 60, 88 gaskelliana alba 61 gaskelliana 'Blue Dragon' 61 gaskelliana coerulea 61 gaskelliana 'Hodgkinsonii' 61 gigas 70, 129 gigas 'Franconvillensis' 130 gloriosa 129 granulosa 17, 23, 28, 62, 87, 103 granulosa alba 63 granulosa schofeldiana 110 grossiz 44 guadricolor 118 guatemalensis 26, 41, 63, 115 guatemalensis alba 64 guatemalensis 'Fuego' 65 guatemalensis 'La Libertad' 65 guttata 13,17,18,23,28,60,67,76,85, 87, 103, 108, 122, 134 guttata alba 68, 86 guttata keteleerii 37 guttata leopoldi 85 guttata lilacina 37 [Cattleya] guttata prinzii 37 guttata 'Russelliana' 68 hardy ana 26, 43, 66, 70 hardy ana 'Fanyauiana' 71 harrisonae 72 harrisoniana 23, 27, 28, 38, 45, 49, 60, 72, 86, 87, 109, 133 harrisonii 72 Heathii 50 holfordii 91 hybrida 68, 87 imperialis 129 intermedia 17,18,25,27,68,73,85,86, 87 intermedia alba 114 intermedia aquinii 76 intermedia aquinii 'Vinicolor' 74 intermedia 'Parthenia' 74 intermedia variegata 72 intricata 27, 76, 85, 86 iricolor 22, 42, 77, 97 isabella 60, 86 isopetala 59 jenmanii 79 kerrii 79, 133 kimballiana 118 krameriana 76 labiata 5, 17, 18, 48, 63, 81, 127 labiata alba 82 labiata 'Amesiana' 82 labiata atropurpurea 97 labiata autumnalis 81 labiata bella 94 labiata Candida 97 labiata carrieri 97 labiata 'Cooksonii' 82 labiata dawsonii 88 labiata dowiana 52 labiata dowiana aurea 42 labiata eldorado 55 labiata gaskelliana 60 labiata genuina 81 labiata lueddemanniana 8 8 labiata mendelii 94 labiata mossiae 97 labiata percivaliana 101 labiata picta 97 labiata roezlii 88 labiata 'Superba' 82 labiata trianaei chocoensis 104 labiata trianae 118 labiata vera 81 labiata warneri 127 labiata warocqueana 81 labiata warscewiczii 129 labiata wilsoniana 88 lawrenceana 52, 83 lawrenceana 'Concolor' 84 lawrenceana 'Marmorata' 84