[From the Bulletin of the Torrey Botanical Club 40 ; 305-332. 19 Jnly 1913.I 



Studies on the West Indian Vernonieae, with one new species from 



Mexico 



Henry Allan Gleason 



Seven years ago, in the Revision of the North American 

 Vernonieae,* forty-three species and one variety of Vernonia were 

 recognized from the West Indies, together with several species of 

 other genera. Since that time, the New York Botanical Garden 

 has been actively engaged in the systematic exploration of these 

 islands, especially Cuba, and has accumulated much valuable 

 material. Director N. L. Britton has recently extended to me 

 the facilities of the Garden, and has given me the opportunity to 

 examine the new material in this tribe of Carduaceae. The 

 results of this study are herewith presented. 



Of the forty-four species and varieties recognized in the re- 

 vision, three have been found untenable and are reduced to 

 synonymy: V. sublanata Gleason, V. Thomae Benth., and V. 

 Sintenisii (Urban) Gleason. The variety has been raised to 

 specific rank. Four old species, not recognized in the revision, 

 are shown by the recent collections to be distinct, and are admitted 

 as species: V. acuminata Lessing, V. Ottonis Sch.-Bip., V. Wrightii 

 Sch.-Bip., and V. fruticosa (L.) Sw. For the identification of the 

 latter, we are indebted to Dr. Urban, who has also described a new 

 species, V. Tuerckheimii. The collections at the Garden, supple- 

 mented by some material loaned by the Gray Herbarium and the 

 Missouri Botanical Garden, are also found to contain seventeen 



* Bull. N. Y. Bot. Gard. 4: 144-243. 1906. 

 [The Bulletin for May 1913 (40: 193-248. pis. 9-14) was issued May 20; the 



305 



s 



