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The Botanical Names of Cotton

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The Botanical Names of Cotton 2 8 25 , 1111 1.0 :: IIIF8 1/11/2.5 :: 11111 . 11111 . ~ -~I"!a 2 2 ~ IIp·2 W " W I.:: W I.:: I~ J.li: ~ ~ I~ 1111'2.0 :i... I~ 1.1 .. ~~ "',,~ I ..... 111111.8 .~' ... J '!'. 111111.8 '1111,1.25' 1111,1.4 11",1.6 111111.25 '"" 1.4 '"" 1.6 MICROCOPY RESOLliTIO~EST CH/illT MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS~3'A NATiONAL BUREAU OF STANDARDS-1963·A 1~: c... ........,.'~, -v/\ . U~·.),,-' / A NOMENCLATOR OF GOSSYPIUM The Botanical Names of Cotton LO s; ...­ Techniol BuHetin No. 1491 ;<? ~. .~, ~. • t t, Agricultural Research Service • UNITED STATES DEPARTMENT OF AGRICULTURE in cooperation with Texas Agricultural Experiment Station Texas A&M University ."A NOMENCLATOR OF GOSSYPIUM The Botanical Names of Cotton By PAUL A. FRYXELL, Research Geneticist Southern Region, Agricultural Research Service U.S. Depn.rtment of Ag·riculture, College Station, Tex . • - Technical Bulletin No. 1491 Agricultural Research Servicc t:~ITED STATES DEPART\IE~T Of AGRICl'LTURE in cooperation with Tcxas Agricultural Experiment Station Texas :\&:\1 Vni\'crsit\' .. Washington, D.C. Issued March 1976 APR 1 0 1979 .. CONTENTS Page Introduction. 1 Arrangement of this bulletin. 2 Useful references ............... , . .. 4 Todaro's publications. .. 4 Multinomials. .. 5 Race terminology. .. 5 Hierarchical inflation of taxonomic categories. .. 6 Problems of nome,nclatural legitimacy and typification. .. 7 Roberty's "Typus proximus" . .. 7 Roberty's category of subspecies. .. 7 Prokhanov's varieties. .. 8 Cook's Florida cottons. .. .. 8 Gammie's names. .. 9 The duplicate formae of Hutchinson and Ghose . .. 10 Roberty's and Watt's types in Cairo. .. 11 Roxburgh types. .. 11 List of basionyms . .. 13 Supplementary lists. .. 79 Chronology of early legitimate basionyms . .. 79 Priority of selected names. .. 80 Published illustrations of Gossypium types .............. ~ .. 81 Nomenclator for names in Gossypium of rank higher than species ........................................... 82 Names excluded from Gossypium . .. 86 Literature cited ....................................... , 87 Index of type specimens of Gossypium . .. 91 Index of authors. .. 97 Index of published names in Gossypium ..................... 105 ,. iii • INTRODUCTION A taxonomic framework for Gossypium L. (Malvaceae; the species of cotton and their relatives) is now generally accepted, at least in broad outline. This framework was established principally by Hutchinson (1947),1 Mauer (1954), and Fryxell (1969b), all of whom based their work on the conceptions of Zaitzev (1928). Other taxonomic studies (Fryxell 1965a, 1965c, 1969b, 1970, 1971; Fryxell and Parks 1967) have made ancillary contribution'~ to this understanding. The nomenclatural problems relating to Gossypium are far more com­ plex than the taxonomic problems. Although some of these problem:; have been pointed out (Fryxell 1965b), there has been relatively little awareness of their existence or of the need for their resolution. Several nomenclatural studies in Gossypium have appeared (Brizicky 1967; Fry­ xell 1968, 1969a, 1972; Fryxell and Smith 1972; Smith 1964), but. much .. still remains to be done. The present study is intended to be a forward step in resolving the manifold problems of typification and nomenda.ture • in the genus Gossypium. The genus Gossypium includes approximately 35 species. Smith (1964) lists 147 specific names and 159 subspecific epithets. My com­ pilation includes many more names, 219 in specific rank, which represent a total of 414 basionyms from all ranks, of which 312 are legitimate. Clear-, ly, there is much synonymy and a great deal of division into infraspecific categories. Much of this subdivision represents what, in a taxonomic context, might be called spurious accuracy. Many taxonomic problems at the infraspecific level remain to be resolved, but they can be dealt with only after the nomenclatural house has been put in order. I must emphasize the distinction between taxonomy and'nomencla­ ture. Taxonomy involves the classification of a group of entities. It is concerned with such problems as whether two species belong in the same genus or in different genera and whether two taxa are distinct species, varieties of a common species, or indeed are identical. On the other hand, nomenclature is concerned with the correct name of the ..• taxon after its classification has been decided. The correct name is de­ termined by applying to the specific situation the "International Code of Botanical Nomenclature" (Staneu et al. 1972), utilizing especially the principles of typification and priority. The concept of type, as used nomenclaturally, is often misunder­ stood by non taxonomists. Explicitly, a type is not necessarily typical of the species or other taxon named, representative of any modal character 'Parenthetical references are to "Liter~ture Cited," p. trI. 2 A NOMENCLATOR OF GOSSYPIUM expression, or intended to convey the idea that the population [rom which it was drawn lacks variability. A nomenclatural type is "that ele­ ment ... to which I al name is permanently attached" (McYaugh et al. 1968, p,:~d). It is preferably a specimen, but may be an illustration or a published description. In a nomenclatural morass such as one finds in Gossypium, it is especially difficult to interpret or dispose of a name satisfactorily until one can typify the name and thus have a basis for determining what that name means botanically. Before Gossypium can be definitively described, the taxonomist must take the following steps: (1) Seek out, bring together, and anctlyze the relevant taxonomic literature; check bibliographic citations and verify dates of publication to establish priority. (2) Distinguish basionyms from subsequent combinations for separate consideration. (3) Typify each basionym, insofar as this can be done, by indication of a holotype or by designation of a lecrotype. (4) Ascertain the herbaria in which type spec­ imens are preserved to permit their examination. (5) From a study of the types, make the taxonomic decisions about the plants named that are the substance of a monograph. In the present study, I undertake the first two steps and begin steps .. 3 and 4, which are in(erdependent and must to a substantial degree pro­ ceed hand in hand. Often a name can be typified or a lectotype can be chosen only after the relevant specimens have been examined. Obviously. plants can be examined only after they have been located, and locating them involves knowing the disposition of a collector's specimens. There­ fore, steps 3 and 4 have been compieted only in those cases where I have examined the relevant materials or where unequivocal statements appear in published sources-e.g., where the publishing author designated a holotype of a name and the herbarium in which it is preserved. Where typification depends upon a comparative and informed study of the rel­ evant herbarium materials. decisions have in most cases been deferred pending such a study. In such instances. the relevant specimens and their location. if known. are specified. so that the maximum information is included herein to assist taxonomists in making informed decisions on typification. The present study may therefore be viewed as a working paper to permit the carrying out of step 5. following the completion of steps 3 and •.. 4. Only then can a monograph of Gossypium be placed on sound nomen­ clatural footing. Arrangement of This Bulletin The principal parts of this work are the "List of Basionyms." the "In­ dex of Type Specimens of GossJ'piwll," and the "Index of Published Names in Gossypium." The two indexes are keyed to the basionym list. ... fNTROOUCTION 3 where the basic information on citation, typification, and subsequent combinations may be found, as well as discussion of such topics as the legitimacy of a name or the location of type specimens. The basionym list includes all validly published names in Gossypiuf11 known to me in specific and infraspecific rank, In addition, some names are included that are not validly published (with their status indicated), simply because they may be encountered in the literature (i.e., have been effectively published) and need to be accounted for. This group includes nomina nuda and nomina provisiora, as well as names that, while invalid themselves, may have been the basis for later legitimate names. A consideration of the typification of alJ basionyms is included. Some botanists may dislike my speaking of (he type of a name that is not validly published. I think it is important, however, to determine the basis for these names, where possible, because some of them have been later validated and legitimized, and others may yet be. Generally, later homo­ nyms are e;\cluded because the presence of the earlier homonym in the list accounts for the absence of later homonyms. In a few cases (e.g.. G. (lIlOlI/({hllll Watt and G. jamlliclIlIl Dec.). however, they are listed and their typification is discussed if they provided the basis for a new name. Names including epithets proscribed by Art. 24, "International Code of Botanical Nomenclature" (e.g.. typicul1I and l'el1lfll) are generally omitted from consideration, as are the several unpublished manuscript names that have been found in various herbaria. The list published by Smith (1.9M) excluded all names judged to be invalid or illegitimate. Smith said (p. 212): "\. I have probably found some names which are not generally known even to cotton specialists, anclthere is no point in adding potentia! fuel to the fire of nomenclatural confusion.
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