36 ARKIV FÖR BOTANIK. BAND 13. N:0 15. 



b. Leaves flat, tomentose beneath. — Cuba. 



F. gnaphalifolia var. angustata. 

 B. Pappus brown. — Hispaniola. 



V. sericea subsp. racemosa. 

 II. Leaves broadly lanceolate to rounded. 



A. Inflorescense many -flowered, cymes elongated. 



L Leaves greenish beneath, glabrous or pubescent. 



a. Pappus brown or tawny, 

 a. Scales bluntish. 



f Leaves coriaceous. Involucres obconic. 



— Jamaica. V. rigida. 

 f f Leaves membranaceous. Involucres cam- 



panulate or cylindric. 

 X Involucres cylindric. — Jamaica. 



V. pluvialis. 

 X X Involucres campanulate. 



* Scales not marginated. 



aa. Involucres brown, 5 mm high. 

 — Jamaica. V. acuminata. 

 ßß. Involucres greenish-brown, 4 

 mm high. — Jamaica. 



V. expansa. 

 ** Scales marginated. — Cuba. 



F. membranacea. 

 ß. Scales acute. 



f Inflorescence contracted, cymes straight. 



— Porto Rico — Leeward Islands. 



F. albicaulis. 

 If Inflorescence spreading. 



X Cymes flexuose. — Porto Rico. 



F. horinquensis. 

 X X Cymes straight. 



* Heads 11 — 13-f lowered. Inner 

 scales somewhat bluntish. — His- 

 paniola. F. sericea subsp. racemosa. 



** Heads 15 — 16-f lowered. Inner 

 scales acute. — Porto Rico — Lee- 

 ward Islands. X F. Gleasonii. 



b. Pappus white. 



a. Scales loose, somewhat spreading, outer ones 

 often slightly recurved. 



