211 
gated rhachis ; stipules filiform, persistent; petiolar gland slender, 
conical, situated between lowermost pair of leaflets; peduncles 
2-4 flowered, forming terminal corymbose racemes; sepals ovate, 
membranaceous ; petals strongly veined; legume nearly straight, 
turgid, mucronate, dehiscent along both sutures; dorsal suture 
prominent; length 2.5—3 cm., width .5 cm.; seeds numerous. 
Texas and New Mexico, extending south into Mexico. 
2. CASSIA PUMILIO A. Gray. 
Cassia pumilio A. Gray, Bost. Journ. Nat. Hist. 6: 180 (1850). 
Plant low (8-15 cm.), with tufted stems from the long, branch- 
ing rhizome ; stems and leaves sparsely pubescent; leaflets linear, 
or the earliest obovate (3-3.5 cm. long, 2 cm. wide), slightly 
shorter than the elongated rhachis; petiolar gland slender, setace- 
cus, situated between lowermost pair of leaflets; stipules acute, 
linear, membranaceous, persistent; flowers resembling those of C. 
Remeriana, but solitary on elongated axillary peducles; calyx per- 
sistent; sepals slighty shorter than petals; legume turgid, oval, 
truncate, finely pubescent; length 1.5 cm., width 7 cm. 
West Texas and New Mexico, extending south into Mexico. 
3. CASSIA BAUHINIOIDES A. Gray. 
Cassia bauhinioides A. Gray, Bost. Journ. Nat. Hist. 6: 180 
(1850). / 
P lant of medium height, somewhat branching, densely pubes- 
cent, pilose or even tomentose; leaflets oblong-ovate, very asym- 
metrical at base, canescent beneath, 2-3 cm. long, I-1.5 cm. wide ; 
Pétiolar gland setaceous, situated on rhachis just below lowermost 
pair of leaflets; stipules filiform, persistent; peduncles two-flow- 
ered, forming corymbs at the ends of the branches; sepals thin, 
SUE anaceous, elliptical ; legume villous, compressed, straight or 
Subfalcate, acute, dehiscent along both sutures; length 3-5 cm., 
Width 5 cm.; seeds numerous. 7 
The leaflets are apt to vary in shape and size; in seedling 
“siege they are nearly orbicular, but later pass into the narrow 
orm. : 
" West Texas, New Mexico and Arizona, extending south into 
€xico, 
4. CASSIA CROTALARIOIDES Kunth. 
Cassia crotalarioides Kunth, Mimos. 132, 4 40. (1819-24) 
Fruticose at base, branching freely; stems and leaves pubes-" ok 
