126 Annals of the Carnegie Museum. 



Leaflets distinct to the base; herbs. 



Leaflets with five or six prominent flabellate veins; branches and petioles* 



glabrous 293. Chamacrista diphylla. 



Leaflets with four or five less prominently flabellate veins; branches and 



petioles pubescent 292. Cassia rotundifolia. 



Leaves with more than one pair of leaflets. 



Leaflets in two pairs; low plant, woody, at least at base. . . 291. Cassia hispidula. 

 Leaflets in more than two pairs. 

 Leaves simply pinnate. 



Leaflets obovate-elliptic, 5-10 cm. long; shrubs 290. Cassia alata. 



Leaflets lanceolate, about 2-4 cm. long; shrubs.. . .289. Cassia Sophera. 

 Leaflets obliquely oblong to obcuneate, mostly 10 mm. long; low shrub. 



294. Chamcecrista lineala. 

 Leaflets about 2.5-7 mm. long, 1-2.5 mm. wide, oblong. 



Leaflets 3-nerved, or with more and shorter nerves at base; stem 



flexuose 296. Chamcecrista savannarum. 



Leaflets with one main nerve near the upper edge; stem not flexuose. 



295. Chamcecrista micrantha. 

 Leaves bipinnate. 



Tree, with spreading branches, numerous small leaflets, and large. 



woody, flattened pods 297. Delonix regia. 



Shrub or small tree, pricklj'; leaflets fewer, about seven to twelve pairs, 



and larger, about 1.5-2 cm. long 298. Poinciana pulcherrima, 



A straggling or sprawling shrub with hooked prickles, the larger pinnae 

 with about six or eight pairs of leaflets which are about 2.5-3.5 cm. 

 long 299. Guilandina crista. 



287. Bauhinia Jenningsii P. Wilson. 



Bauhinia Jenningsii P. Wilson, in Britton, Studies of West Indian Plants, Bulletin 

 of the Torrey Botanical Club, XLIH, 1916, pp. 463, 464. 



"Wooded limestone plain, Coe's Camp, Ensenada de Siguanea 

 (Britton & Wilson 14851, type); coastal plain, San Juan {Britton & 

 Wilson 15544); coral soil, north of Caleta Grande (0. E. Jennings, 

 480)." (Britton, /. c). The Britton & Wilson collections were made 

 in the spring of 1916, the Jennings specimen was collected near Hato, 

 May 22, 1910. To this species belongs also a specimen, 0. E. Jen- 

 nings, No. 464, collected from a slender shrub about six feet high, 

 growing on coralline-limestone soil between Hato and Caleta Grande, 

 May 22, 1910. 



The published description of this species does not strictly apply in 

 certain particulars to the specimens in the Herbarium of the Carnegie 

 Museum. Many of the petioles of well-developed leaves are not over 

 10 mm. long, the base of the leaf is rather uniformly subcordate instead 



