protologue. Lectotypes are designated herein for the first time for non-lectotypified names in cases where 

 the syntypes have been seen. 



Microfiches, mostly of type specimens in the de Candolle herbarium (G-DC), are cited in one of two 

 ways. The microfiche number is equivalent to the volume, page number, and species number based on 

 their enumeration in volume 4 of de Candolle's Prodromus containing the Rubiaceae treatment (1830). 

 For example, the type ofCoutarea mexicana is Martius s.n. (Holotype G-DC), and the microfiche citation 

 is 4: 350.3. Alternatively, the IDC (Inter Documentation Company AF) series is used. Here the G-DC 

 herbarium is item number 800 and each fiche has an index number. For example, the type of Coutarea 

 mexicana is located on fiche number 680, in the second row, the seventh from the left, so the resulting 

 IDC number is 800.680.II.7. 



Herbarium acronyms are abbreviated following Index Herbariorum (Holmgren et al., 1990). 

 Abbreviations for authors of botanical names follow Brummitt and Powell ( 1 992). Serial publications have 

 been abbreviated following Botanico-Periodicwn-Huntianum (Lawrence et al., 1968) and Botanico- 

 Periodicum-Huntianum/Supplementum (Bridson & Smith, 1991). Book titles and other non-periodical 

 abbreviations follow Taxonomic Literature (TL-2) by Stafleu and Cowan (1976 1988). Other 

 abbreviations frequently used herein are: ft. (feet); m (meters); Distr. (Distnto or District); Mun. 

 (Municipio or Municipality); names of months are always abbreviated by the first three letters in English 

 (i.e., Jan for January). 



Taxonomic concepts utilized in this work generally follow those presented in the most recently 

 published monographs, revisions, and floristic treatments available. The nomenclature for the tribe 

 Spermacoceae (including the genera Cmsea. Diodia, Ernodia, Galianthe, Mitmcarpus, Richardia. 

 Spermacoce, Staelia, and Tobagoa) follows the annotations and advice of C. Dennis Adams (BM), who 

 is preparing the treatment for Flora Mesoamericana. Much of this information is summarized in the 

 extremely useful checklist of neotropical Rubiaceae published by Andersson (1992). In other cases, 

 however, my own taxonomic judgments are presented. Any comments, corrections, and additions from 

 readers will be greatly appreciated. 



FORMAT 



At the beginning of each generic listing the name of each genus and its type species are always written 

 in normal Roman type. Typifications for these generic names mostly follow Index Nominum Genericorum 

 tPLwtarum) (Farr et al., 1979). 



For each entry, an infrageneric name written in boldface type is accepted as valid, whereas an italicized 

 name is considered to be a synonym of the name m boldface type preceded by an em dash (— ) at the end 

 of each entry. Each name is cross-referenced with its basionym, which is also italicized. Blocking names 

 have been indicated in cases where generic transfers have necessitated new names. Other generic 

 combinations (homotypic synonyms) that appear in this catalog are indicated by the generic name(s) listed 

 in italics just preceding the accepted name in boldface at the end of each citation. The following examples 

 illustrate these points. 



( 1 ) The accepted name (boldface type) is followed by the author(s) and publication citation the basionym 

 (italics), its publication citation, and type information; this is followed by generic names (also in italics) 

 under which other combinations (=homotypic synonyms) are listed in this catalog: 



Elaeagia myriantha (Standi.) C. M. Taylor & Hammel, Novon 3: 490. 1993. Sickingia myriantha Standi., 

 Publ. Field Columbian Mus., Bot. Ser. 7: 27. 1930. Type: COLOMBIA: Magdalena, Las Nubes road, 

 region of Santa Marta, 1200 m, 3 Dec 1898, H. H. Smith 1810 (Holotype F 138660; isotypes MO, NY, 

 n.v., US, n.v., W, n.v., Y, n.v.). Holtonia, Simira. 



