38 ARKIV FOR BOTANIK. BAND 13. NIO 15. 



X Leaves rounded or obtuse at the apex. 

 Straggling plant. Cuba. 



V. calophylla. 

 X X Leaves acute. Erect plants. 



* Leaves elliptic to elliptic oblong. In- 

 volucres 5 6 mm high. Cuba. 



V. vicina. 

 ** Leaves broadly lanceolate. In- 

 volucres 3 mm high. Cuba. 



V. parvuliceps. 

 p. Leaves bullate. 



f Leaves acute. Cymes elongated. 



X Involucres to 12 mm high, scales with' 

 filiform tips. Cuba. V. pineticola. 

 X X Involucres 5 mm high, scales lanceolate, 

 acute. Cuba. V. leptoclada. 



ff Leaves obtuse or rounded. Cymes ab- 

 breviated. 



X Involucre densely pubescent. Cuba. 



V. calida. 



X X Involucre thinly pubescent, or glabrate. 



Cuba. V. senlitalis. 



B. Inflorescence few-headed, cymes reduced, or forming 



terminal capitate clusters. 



1. Inflorescence of reduced cymes. 



a. Leaves flat. 



a. Leaves narrowed at the base, broadest above 

 the middle. 

 -j- Leaves narrowly obovate, rounded at the 

 apex. South-eastern Bahama Islands. 



V. bahamensis. 

 jf Leaves broadly obcordate, emarginated 

 at the apex. Little Inagua Island, Ba- 

 hamas. V. obcordata. 

 (3. Leaves rounded at the base, or shortly atte- 

 nuated, broadest near the middle. New 

 Providence Island, Andros Island, Bahamas. 



V. arbuscula. 



b. Leaves undulate or curled towards the margins. 

 Cuba. V. complicata. 



