306 GLEASON: STUDIES ON WEST INDIAN VERNONIEAE 
new species, which are here described. The total number’ of 
species of Vernonia recognized from the West Indies at the present 
time is therefore sixty-three. In addition, an Asiatic species 
escaped or adventive in Guadeloupe has been found to differ from 
Vernonia in particulars important enough to warrant its segrega- 
tion, and a new species of the related genus Eremosis has been 
described from Mexico. 
CYANTHILLIUM Blume, Bijdr. Flora Nederl. Indie 889. 1826 
Isonema Cass. Bull. Soc. Philom. 1817: 152. 1817. Not Isonema 
R. Br., 1809. 
Cyanthyllium Blume, Flora Javae I: vi. 1828. 
Cyanopis Blume, Flora Javae 1: vi. 1828; DC. Prodr. 5: 69. 
1836. 
Cyanopsis Endl. Ench. 232. 1841. Not Cyanopsis Cass. Bull. 
Soc. Philom. 1817: 200. 1817. 
Claotrachelus Zoll. Nat. en Geneesk. Arch. Neérl. Indie 2: 565- 
1845, fide Hoffman, in Engl. & Prantl, Nat. Pfl.-Fam. 
The genus differs from Vernonia in its very fragile, uniseriate 
pappus, and its 4—5-angled achenes. 
Cyanthillium chinense (Lam.) comb. nov. 
Eupatoria conyzoides foliis glabris summo caule ramosior, lami folio 
flore purpureo Pluk. Phytographia pl. 177. f. 2. 1691. 
Conyza chinensis Lam. Encyc. 2: 83. 1786 
Conyza patula Ait. Hort. Kew. 3: 184. 17809. 
Isonema ovata Cass. Dict. Sc. Nat. 24: 25. 1822. 
Conyza odorata Willd. in Spreng. Syst. 3: 511. ‘1826. 
Cyanthillium villosum Blume, Bijdr. Flora Nederl. Indie 889. 
1826. 
Cyanthillium pubescens Blume, Bijdr. Flora Nederl. Indie 890- 
1826. 
Centratherum chinense Less. Linnaea 4: 320. 1829. 
Vernonia chinensis Less. Linnaea 6: 105, 674. 1831. 
Cyanopis pubescens DC. Prodr. 5: 69. 1836, 
Cyanopis villosa DC. Prodr. 5: 69. 1836..- 
Claotrachelus rupestris Zoll. Nat. en Coiacke or Neérl. Indie 
2: 565. 1845. 
