216 
rous; leaflets oblong-elliptical, acute or obtuse at apex, 4 cm. 
long, 1.6 cm. wide; petiolar gland stipitate, slender, acute, situ- 
ated between lowermost pair of leaflets ; stipules linear, membran- 
aceous, caducous; peduncles 2-flowered, in close terminal fa 3 
cemes; flowers large; sepals oblong-elliptical, equal in length with 
petals; legume falcate, narrowly linear, 9 cm. long, .5 cm. wide. 
Florida, extending into the West Indies; also in Mexico. 
Series Auriculate unrepresented in the United States. 
B. Leaves eglandulose. 
Series Florida. 
Racemes axillary or corymbose-paniculate. Legume with 
flat valves, usually elongated. 
14. Cassta Wistizent A. Gray. 
Cassia Wislizent A. Gray, Pl. Wright, 1: 60 (1852). : ee 
Fruticose, branching; leaves small, glabrous, 4-7 foliolate ; 
leaflets wedge-obovate or oblong-oval, slightly acuminate, 5 mm 
long, 3 mm. wide; petiolar gland minute or wanting; stipules ms 
aculeate; inflorescence in crowded paniculate racemes, becoming a 
corymbose at terminations of branches; flowers large and com 
spicuous ; legume flat, elongated, with prominent sutures,9 CM 
long, .7 cm. wide; seeds numerous, transverse, causing exter 
swellings on valves. ; 
West Texas and New Mexico, extending south into Mexico. 
Series Picte and Brachycarpe unrepresented in the Unit 
States. 
Section PstLorHEGMA unrepresented in the United States. 
SUBGENUS III. LASIORHEGMA. 
Shrubs or herbs, rarely trees. Petiolar glands when present 
depressed, scutelliform, sessile or stipitate. Stamens 10, all pet 
“feck, rarely several wanting or reduced to staminodia; filaments 
short, anthers oblong-linear, dehiscent by short slits at the apey 
more rarely laterally. Legume usually flat, the valves elastits 
ventrally and dorsally dehiscent. Seeds transverse OF nee 
Sections Apoucourra and Asus unrepresented in the Unit i 
States. ane | 
Section CHAMCRISTA. : 
Flowers usually solitary on axillary peduncles. Anthers ofet 
unequal. ‘ 
Subsection Xerocalyx. 
Sepals subscarious, many-striate. Leaves 1-many-foli 
