Gleason: Studies on West Indian Vernonieae 311 



pubescent, the inner oblong, gradually narrowed to a rounded tip, 

 the outer triangular-ovate, obtuse or acute. 



The following specimens are referred here: Jamaica: Harris 

 8205, altitude 500 m.; Britton & Hollick 1996, altitude 700 m.; 

 Britton 431, 679; Cockerell. 



Vernonia albicoma Gleason, Bull. N. Y. Bot. Gard. 4: 185. 1906 



Stem woody, slender; leaves thin, bright green, elliptical or 

 elliptical-lanceolate, 5-6 cm. long, 1.5-2.3 cm. wide, acuminate, 

 subentire, tapering at the base, glabrate above, very finely pubes- 

 cent or glabrous beneath; petioles 5-7 mm. long; upper leaves 

 somewhat reduced; inflorescence of 1-3 curved spreading terminal 

 cymes bearing each 5-10 sessile secund 18-flowered heads; bracteal 

 leaves lance-oblong, the middle ones about equaling the involucre, 

 which is broadly campanulate or hemispheric, 5 mm. high; scales 

 erect, loosely and irregularly imbricated, nearly glabrous, the 

 outer lanceolate, acuminate, the inner oblong, acute; pappus white. 



Campbell 6152, from the foot of Long Mountain, Jamaica, alti- 

 tude 115 m. 



Vernonia acuminata Less. Linnaea 6: 663. 1831 



Shrubby, height not stated; stem finely cinereous-puberulent; 

 leaves thin, bright green, broadly ovate-lanceolate, 6-9 cm. long 

 and half as wide, long-acuminate, entire, acute at the base, very 

 sparsely and minutely puberulent on both sides, on petioles about 

 5 mm. long; inflorescence of numerous widely spreading freely 

 branched cymes, the ultimate branches bearing 3-7 heads; rameal 

 leaves lanceolate, 2-3 cm. long; bracts oblong-lanceolate to linear, 

 those at the ends of the cymes only 6 mm. long; heads 18-flowered; 

 involucre campanulate, about 5 mm. high, its scales all obtuse 

 or the outer acute, pubescent, especially the outer series, the 

 exposed portion of the inner series oblong. 



Wight 20, from wooded hillsides, Port Antonio, Jamaica. 



Vernonia expansa Gleason, Bull. N.Y. Bot. Gard. 4: 186. 1906 



A straggling shrub 2.5-3 m. high, branching above; leaves 

 numerous, rather crowded, thin, divaricate, ovate, 3-5 cm. long, 

 1.7-2.7 cm. wide, acute or subacuminate, entire, obtuse or broadly 

 rounded at base, sparsely and finely pubescent, or nearly glabrous 

 above; petioles 3 mm. long; upper and rameal leaves smaller, 

 broadly elliptical, obtuse; inflorescence of several short cymes 

 bearing each 3-6 heads ; bracteal leaves equaling or much shorter 



