20 Pollard. New American Species of Chamaecrista. 



glabrous, 6-10 mm. long, of thin texture, minutely apiculate, the mid- 

 vein rather excentric, not prominent; petiolar gland crateriform, sub- 

 sessile; stipules linear, acuminate, membranaceous, striate; peduncles 

 1-flowered, almost always bibracteolate, supra-axillary; flower 2 cm. 

 broad; sepals linear, attenuate, nearly equalling the obovate petals; 

 legume 6-7 cm. long, linear, puberulent; seeds ovoid, compressed, 

 oblique. 



Type in the United States National Herbarium, collected by Prof. S. 

 M. Tracy at St. Vincent, Florida, September 9, 1899 (No. 6,326). A very 

 graceful species, perhaps approaching O. Musissippiensis in the small 

 size of its leaflets, but distinguished by its erect habit, its uniform 

 pubescence, its leaflets, which are only half as many as those of C. Mis- 

 sissippiensis, and also by the fact that it is annual and herbaceous. 



Chamaecrista brachiata. 



Plant 1 m. high or less, woody at base, with tough, freely branching 

 glabrate stems; stipules lanceolate, acuminate, striate, and strongly 

 persistent; leaves 10-14-foliolate, with a very depressed discoid petiolar 

 gland; leaflets linear, glabrous on both surfaces, the midvein somewhat 

 excentric, the obtuse apex tipped with a slender cusp; flower large, 3 

 cm. in diameter, the broad yellow petals considerably exceeding the lan 

 ceolate scarious sepals, legume linear, 6-7 cm. long, quite glabrous when 

 mature; seeds quadrate, oblong, compressed on both sides. 



Type, No. 330,115, in the United States National Herbarium, collected 

 by Charles L. Pollard and G. N. Collins at Miami, Bade County, Florida, 

 April 4-7, 1898 (No. 245). The plant grows entirely in open barrens or 

 scrubs, often forming bushes of considerable size; it is associated with 

 no other Chamaecrista. The same species has been collected by A. Fred- 

 holm in Duval County, September 11, 1893, showing that the blooming 

 period extends throughout the season. It differs from C. fasciculata, the 

 only other large-flowered species in south Florida, in being fruticose, in 

 the much more numerous and narrowly linear leaflets, and also in having 

 a discoid rather than oblong, petiolar gland. The corolla is clear lemon- 

 yellow, with no suggestion of orange, and the petals considerably ex 

 ceed the sepals. 



Chamaecrista littoralis. 



Plant tall, erect, diffusely branching, the branchlets and younger 

 shoots finely puberulent; stipules persistent, lanceolate, sharply atten 

 uate, 3-5-nerved, the margin usually hispidulous; leaves oblong or 

 oblong-lanceolate in general outline, 1-4 cm. long,. both surfaces sparsely 

 puberulent; leaflets 6-12 pairs, elliptical, prominently cuspidate, 5-8 mm. 

 long; midvein more or less excentric; petiolar gland cupuliform, prac 

 tically sessile; flowers about 2-2.5 cm. in width, on slender solitary ped 

 uncles 1-1.5 cm. long; petals exceeding the linear-lanceolate scarious 



