212 
2. Shrubs or rarely herbs ; leaves 2-many foliolate. 
cent; leaves 2—3 foliolate, the leaflets all borne near termination of 
rhachis; leaflets ovate-elliptical, slightly asymmetrical at base, 
densely pubescent, acute or obtuse, 2—2.25 cm. long, .7-1 cm. 
wide; petiolar Sland setaceous, situated between lowermost pair of 
leaflets ; stipules long, filiform ; inflorescence a corymbose raceme, 
many-flowered ; petals large, conspicuous ; sepals smaller, lanceo- _ 
late; legume turgid, slightly compressed, oblong-oval, (1.75 ©™ _ 
long, .75 cm. wide,) sparsely pubescent; dorsal suture straight, — 
mucronate-tipped; ventral suture more or less curved; seeds few. — | 
Arizona.—Grand Cajion, Colorado Plateau, Moseley (1884) 
Kew Herb.; Mexico. 
No specimen collected within the boundary limits of the United | 
States exists in the Columbia College Herbarium; but the locality : 
given above, in which it was found by Prof. Moseley when collect: a 
ing for the Kew Herbarium, leads us to suppose that it occurs we 
other portions of Arizona and New Mexico. - | 
5. Cassia Covesnr A. Gray. 
Cassia Covesit A Gray, Proc. Am. Acad. 7: 399 (1868.) ae 
Stems branching from the base; plant thickly clothed vie : 
finely appressed, silky pubescence; leaves 2~3 foliolate; leaflets 
asymmetrical at base, ovate or oblong-elliptical, mucronate, aig P 
em. long, 1.2 cm. wide; petiolar gland setaceous, situated betweel — 
lowermost pair of leaflets; occasionally an accessory gland ° 
similar appearance is present between second pair ; stipules pee a 
persistent; racemes numerous, axillary, many-flowered ; genre x 
large ; sepals small, ovate-elliptical ; legume subterete, acute, many . 
seeded, straight or subfalcate, 3.5 cm. long, 6 cm. wide. 
This species is not included in Bentham’s monograph. ; 
two specimens in the Columbia Herbarium differ in the degree 
pubescence. 
Nevada and Southern California extending through A 
south into Mexico. 
of . 
rizona — 
6. Cassta LINDHEIMERIANA Scheele. 
Cassia Lindheimeriana Scheele, Linnza, 21: 457 (1848). ul 
Plant of medium height, branching, silky-pubescent; IAN 
4-6-foliolate; leaflets asymmetrical, oval or elliptical, acy pats 
mucronate, white-tomentose beneath, 2.7—3 cm. long, 1.5 
wide ; petiolar gland setaceous, situated between the next 
