Brittox: Studies of West Indian plants 



2. C rotundifolia. 



3- 



4- 



■pilosa, 

 serpens. 



5. C.flexuosa, 



6. C. grammica. 



53. CHAMAECRISTA Moench IN THE WEST INDIES 

 Type species: Chamaecrista nictitans (L.) Moench. 



A. Sepals rigid, scarious, many-nerved (Diphyllae). i. C. diphylla. 



B. Sepals membranous, scarcely nerved. 



a. Prostrate herbs, the flowers on filiform peduncles. 

 Leaflets only i pair, obovate; stipules cordate {Rotundi- 



foliae). 

 Leaflets 3-7 pairs, oblong to obovate; stipules lanceolate 

 {Pilosae). 

 Stems pilose. 

 Stems appressed-pubescent. 



b. Erect, ascending or rarely prostrate herbs or shrubs. 



I. Mid vein of the leaflet central or excentric, not 

 marginal. 

 * Shrubs, with coriaceous or subcoriaceous leaves, 

 t Leaflets many, 20-50 pairs, linear; stipules 



large; stem flexuous (Flexuosae). 

 tt Leaflets fewer, 2-12 pairs, oblong or obovate; 

 stipules small; stem not flexuous (Linea- 

 tae). 

 i Foliage densely pubescent. 

 JJ Foliage glabrous or puberulent. 

 § Leaflets dull. 

 Leaflets obovate or oblanceolate. 



Leaflets 2 or 3 pairs, 5 mm. long or 



less. 

 Leaflets 3-1 1 pairs, 7-15 mm. long. 

 Gland sessile. 

 Gland stalked. 

 Leaflets oblong. 



Leaflets acute, cuspidate. 

 Leaflets rounded and mucronulate 

 at apex. 

 §§ Leaflets shining. 



Leaflets oblong, or the upper obovate, 

 1. 5 cm. long or less, strongly 

 callous- margined. 

 Leaflets glabrous; gland large, 



nearly sessile. 

 Leaflets ciliate; gland small, stalked. 

 Leaflets elliptic to ovate to obovate, 

 1.5-3 cm. long, not callous- 

 margined. 

 Leaflets elliptic, acute. 

 Leaflets ovate to obovate, obtuse, 

 retuse, or mucronate. 

 Leaflets 1-3 pairs, obovate, 

 mostly retuse. 



7. C. ohcordata. 



8. C. 



9. C. 



10. C. 



11. C. 



lineaia. 

 granulate. 



pinelorum. 



jamaicensis. 



12. C. 



13. C. 



portoricensis. 

 Tuerckheimii. 



14. C. caribaea. 



15. C inaguensis. 



