Brixton: Studies of West Indian plants 469 



twice as long as the leaves; involucre 4 mm. high, subcylindric, its 

 bracts in 2 or 3 series, linear, puberulent, the outer shorter than 

 the inner; ligules white; disk-flowers tubular, 5-lobed, the lobes 

 obtuse; achenes flattened, oblong or somewhat oblong-elliptic, 

 minutely hispidulous; pappus-bristles in i series, barbellate. 



In white sand, vicinity of Los Indios {Britton & Wilson 14207), 



Helenium scaposum sp. nov. 



A low, pubescent, scapose perennial. Leaves several or many, 

 densely tufted, short-petioled, oblong to spatulate, punctate, 1.5-3 

 cm. long, 6-10 mm. wide, rather strongly 5- to 7-nerved, entire or 

 repand-dentate, obtuse or acute at the apex, narrowed or cuneate 

 at the base; scapes rather stout, 5-11 cm. high; involucre about 5 

 mm. high; its bracts ovate-lanceolate, acute, appressed or little 

 spreading; rays 10 to 12, bright yellow, obovate, 3-toothed, 5-8 mm. 

 long; disk yellowish, depressed-globose, 8-12 mm. in diameter, its 

 corollas 5-lobed, the lobes triangular-ovate; pappus scales of ray- 

 flowers and disk-flowers alike, elliptic to obov^ate, lacerate, not 

 aristate. 



White sand pine-lands, west-central districts. Type from near 

 Siguanea {Britton &• Wilson 14^46). 



A plant with quite the floral structure of Helenium, but its 

 scapose habit is aberrant, resembling that of some Tetraneuris 

 species. 



