Gleason : Vernonia in the Bahamas 



18o 



Abaco, pine lands, Marsh Harbor, Dec. 21, 1904, L.J. K. Brace 

 1835, past maturity with the achenes gone. 



Abaco and Great Bahama islands, from which V. insularis 

 only has been collected, are but a short distance from the east 

 coast of southern Florida, and the nearest relative of the species 

 may be looked for there. In leaf-habit and involucre it is not far 

 from the Floridian V. Blodgettii Small, and may be connected 

 phylogenetically with it. 



Vernonia arctata sp. no v. 



§ Lepidaploa, Scorpioideae reductae; a much-branched shrub 3-8 

 dm. high, stem and branches striate, thinly tomentose or glabrate, 

 branches crowded, leafy ; leaves broadly elliptic to obovate-ob- 

 long, acute or mucronate, entire, acute or obtuse at the base, pin- 

 nately veined, brown-tomentose beneath, glabrate above, 1-1.8 cm. 

 long, 0.6-1. 1 cm. broad, divaricately spreading or somewhat re- 

 flexed, on tomentose petioles 3—7 mm. long; inflorescence flattened, 



Q 



Figure I. Leaf types of [a, b, c) Vernonia arctata, (ci) V. obcordata, (e, /, ^) 

 V. bahamensis. Natural size. 



terminating the branches, consisting of several short leafy irregular 

 scorpioid cymes bearing each 1-5 sessile or short-peduncled heads ; 

 involucre campanulate, 4—5 mm. high ; scales pauciseriate, lanceo- 

 late, irregularly imbricated, acute, tomentose ; achenes about 13 

 in each head, pubescent, 2.5 mm. long; pappus nearly white, 5 

 mm. long, the outer series conspicuous. 



New Providence Island, in dry pine barrens. Most of the re- 

 cently collected material distributed as V. bahamensis belongs 



