Britton: Studies of West Indian plants 



Leaflets 4-9 pairs, ovate to 



ovate-oblong, mostly obtuse. 16. C. lucayana. 

 ** Herbs or shrubs, with membranous leaves 

 (Glandulosae). 

 t Flowers large, 2-4 cm. broad. 



Leaflets villous or pubescent beneath. 



Glands elongated, petiolar and also often 

 between the leaflets; midvein of leaflets 

 nearly central, the lateral veins many. 17. C. glandulosa. 

 Glands short, sessile, petiolar only; mid- 

 vein of leaflets excentric, the lateral 

 veins few. 18. C. Dussii. 



Leaflets glabrous beneath. 



Leaflets oblong to linear; gland stipitate. 19. C. Swartzii. 

 Leaflets obovate or oblong; gland sessile 



or stout-stipitate. 20. C. polyadena. 



tt Flowers small, seldom over 1 cm. broad. 



X Petiolar glands sessile, or very short- 

 stalked. 

 Prostrate; leaflets 4-6 pairs. 21. C. pygmaea. 



Erect or ascending; leaflets 8 pairs or more. 



Plant densely hirsute all over. 22. C. patellaria. 



Plants glabrate or more or less villous. 

 Pod black-banded and black-mar- 

 gined. 23. C. fasciata. 

 Pod not black-banded. 



Leaflets 10-15 mm. long, the 



midvein little excentric. 24. C. aeschinomenc. 



Leaflets 5-8 mm. long, the mid- 

 vein very excentric. 

 Petals 6 mm. long; plant 



sparingly short-pubescent. 25. C. savannarum. 

 Petals 3 mm. long; plant 



villous. 26. C. micrantha. 



XX Petiolar glands distinctly stalked. 



Pod 3.5-4 mm. broad; pubescence widely 



spreading. 27. C. riparia. 



Pod 3 mm. broad or less. 



Petiolar glands often 2 ; leaflets oblong; 



plant glabrous, or pubescent only 



above. 28. C. mirabilis. 



Petiolar gland 1; leaflets linear or 



linear-oblong; plant pubescent or 



villous. 29. C. Ghamaecristo. 



2. Midvein of the leaflet approximate to its upper 

 margin (Strigillosae). 

 Petiolar gland small, subsessile. 



Leaves sparingly pubescent. 30. C. strigillosa. 



Leaves densely pilose. 31. C. adenosperma. 



