221 
stipitate ; stipules filiform or linear ; peduncles 1—2-flowered, rather 
short, axillary or supra-axillary; flowers large; legume linear, 
pilose or sparsely pubescent, rostrate, somewhat elongated, 5—5.5 
cm. long, .§ cm. wide, seeds oblique. 
Texas (Drummond)—extending south into Mexico. 
v 26. CassIA SIMPSONI n. sp. 
Low, branching from a fruticose base; stem more or less 
puberulent ; leaves 8-12-foliolate ; leaflets glabrous or subglabrous, 
small, narrowly linear (5 mm. long, 1 mm. wide), tipped with a 
black, rigid, acuminate point; costa approaching the superior 
margin; secondaries 4 to 5, oblique, almost parallel with the costa ; 
petiolar gland minute, stipitate, obconical, situated on rhachis 
just below lowermost pair of leaflets; stipules foliaceous, tipped 
with rigid acuminate points similar to those on leaflets ; flowers 
sessile or subsessile, somewhat supra-axillary, .5—.8 cm. broad; 
Sepals lanceolate, membranaceous, equalling the petals; legume 
flat, linear, hirsute, subrostrate, 2 cm. long, .4~.5 cm. wide; seeds 
few, oblique. 
Florida—Big Pine Key, Simpson (May, 1891), No. 174. 
Type, three specimens in the National Herbarium, collected by 
Mr. J. H. Simpson, to whom the species is dedicated. One of 
these specimens is an entire plant, measuring 21 cm. in height, of 
very compact, shrubby form. The most prominent specific char- 
acteristic is the rigid acuminate point terminating the apices of 
the leaflets and stipules, a feature not observed in any other Cassza. 
27. CASSIA ARMATA S. Wats. 
Cassia armata S, Wats. Proc. Am. Acad. r1: 136 (1876). 
: Herbaceous, puberulent; leaves with an elongated, flattened, 
Spinulose rhachis 4-6 cm, long, often impari-pinnate, 2—7-foliolate ; 
leaflets distributed at irregular intervals on rhachis, alternate or 
©PPosite, ovate or sometimes crescentic in outline, subcoriaceous, 
‘5 cm. long, .3 cm. wide ; petiolar gland and stipules wholly want- 
Ing; flowers rather large, numerous in elongated axillary racemes; 
Pedicels slender, subtended by rigid aculeate bracts; perfect sta- 
Mens 7, staminodia 3; mature legume not observed. 
Nevada—Wheeler (1872). . 
California—Palmer (1876); San Diego, Orcutt (1889). 
Arizona—Mohave Desert, Mr. and Mrs. Lemmon (1884). 
In none of the specimens in the Columbia College Herbarium, = 
Or those in the Department of Agriculture, are mature pods repre: : 
