BRITTON: STUDIES OF WEsT INDIAN PLANTS 3 
53. CHAMAECRISTA Morencu IN THE WEST INDIES 
Type species: Chamaecrista nictitans (L.) Moench. 
A. Sepals rigid, scarious, ee Oiamearse I. C. diphylla. 
B. Sepals membranous, scarcely ne 
a. Prostrate herbs, the flowers on en rm peduncles 
nly 1 pair, obovate; stipules cordate (Rotundi- 
foliae). 2. C. rotundifolia, 
Leaflets 3-7 pairs, oblong to obovate; stipules lanceolate 
(Pilosae). 
Stems pilose. 3. C. pilosa. 
Stems appressed-pubescent. 4. C. serpens. 
b. Erect, ascending or rarely prostrate herbs or shrubs 
. Midvein of t leaflet central or excentric, not 
arginal. 
* Shrubs, with coriaceous or subcoriaceous leaves. 
} Leaflets many, 20-50 pairs, linear; stipules 
large; stem flexuous (Flexuosae). 5. C. flexuosa. 
tt Leaflets fewer, 2-12 pairs, oblong or obovate; 
stipules small; stem not flexuous (Linea- 
tae). 
t Foliage densely pubescent. 6. C. grammica. 
tt Foliage e glabrous or puberulent. 
§ Leaflets dull. 
Leaflets obovate or oblanceolate. 
Leaflets 2 or 3 pairs, 5 mm. long or 
47. C. obcordata, 
t 
aoe $ 3-II —— 7-15 mm. long. 
\ Gland sessile. 8. C. lineata. 
Gland satel 9. C. granulata. 
Leaflets oblong. 
Leaflets acute, cuspidate. 10. C. pinetorum, 
Leaflets rounded and mucronulate 
at apex. 11. C. jamaicensis. 
§$§ Leaflets shining. 
oblong, or the upper obovate, 
I.5 cm. long or less, strongly 
callous-mar. 
Leaflets slabrous; gland large, 
ile. 12. C. portoricensis. 
eaflets ciliate; gland small, stalked. 13. C. Tuerckheimis. 
Leaflets elliptic to ovate to obovate, 
1.5-3 em. long, not callous- 
margin 
Leaflets elit, acu 14. C. caribaea. 
L e to per obtuse, 
mostly retuse. 15. C. inaguensis. 
