CASSIACEAE 585 
pores. Ovules numerous. Pods turgid or somewhat compressed, often elongated. Seeds 
transverse or parallel with the septa. SENNA. 
Leaf-blades 2-foliolate. 
Peduncles 1-flowered. 
Peduncles 2-several-flowered. 
Gland conical, situated between the lowermost leaflets. 
Gland setaceous, below the lowermost leaflets. 
Leaf-blades 4-20-foliolate or rarely 2-foliolate. 
Pod less than 5 em. in length. 
Pod more than 5 em. in length. 
Petiolar gland at base of rachis. 
Stipules filiform. 
eaf-blades 8-12-foliolate. 5. C. occidentalis. 
Leaf-blades 12-20-foliolate. e C. Marylandica. 
8 
= 
. C. pumilio. 
C. Roemeriana. 
. C. bauhinioides. 
Aa Coto 
. C. Lindheimeriana. 
Stipules linear, foliaceous. . C. ligustrina. 
Petiolar gland between the lowermost pair of leafiets. 
Leaflets with obovate blades. . C. Tora. 
Leaflets with elliptic blades. 
Peduncles 2-flowered. 9. C. biflora. 
Peduncles several-flowered. 10. C. Bahamensis. 
l. Cassia pumilio A. Gray. Plant 8-15 cm. tall, the stems and leaves sparsely 
pubescent. Stems tufted from a long, branching rootstock : leaflets 2, the blades linear, or 
the earlier obovate, 3-3.5 em. long, 2cm. wide, slightly shorter than the elongated rhachis ; 
petiolar gland slender, setaceous, situated between the lowermost pair of leaflets: stipules 
acute, linear, membranaceous, persistent : flowers solitary on elongated axillary peduncles : 
calyx persistent ; lobes slightly shorter than petals: pods turgid, oblong, finely pubescent, 
1.5 cm. long, 7 mm. wide. 
On dry mesas, Texas and New Mexico to Mexico. 
2. Cassia Roemeriàna Scheele. Plant erect, villous, 4-5 dm. tall. Stems numer- 
ous, from a thick rootstock : leaflets 2, densely pubescent, the blades lance-linear, 3-6 cm. 
long, 7-12 mm. wide, asymmetrical at the base, borne on a somewhat elongated rhachis : 
stipules filiform, persistent : peduncles 2-4-flowered, forming terminal corymbose racemes : 
calyx-lobes ovate, membranaceous : petals strongly veined : pods nearly straight, turgid, 
mucronate, dehiscent along both sutures, 2.5-3 cm. long. 
On mesas, Texas and New Mexico to Mexico. 
3. Cassia bauhinioides A. Gray. Plant 3-4 dm. tall. Stem somewhat branching, 
densely pubescent, pilose or even tomentose: leaflets 2, the blades oblong-ovate, very 
asymmetrical at the base, canescent beneath, 2-3 cm. long, 1-1.5 cm. wide: stipules fili- 
form, persistent : peduncles 2-flowered, forming corymbs at the ends of the branches: 
caly x-lobes thin, membranaceous, elliptic: pods villous, compressed, straight or subfaleate, 
acute, dehiscent along both sutures, 3-5 cm. long. i 
On mesas, western Texas to Arizona and Mexico. 
., 4. Cassia Lindheimeriàna Scheele. Plant erect, 0.5-1 m. tall. Stems branching, 
silky-pubescent : leaflets 8-12, the blades asymmetrical, oval or elliptical, acute or mucro- 
nate, canescent beneath, 2.7-3 cm. long, 1.5 cm. wide : petiolar gland setaceous, situated 
tween the next to the lowermost pair of leaflets: stipules linear, membranaceous : 
racemes loosely many-flowered, becoming corymbose at the ends of the branches : calyx- 
in ovate-lanceolate, striate : pods straight, acute, apparently indehiscent, nearly gla- 
TOUS, very much compressed, 5 cm. long, 5 mm. wide. 
In dry ground, Texas to Arizona and Mexico. 
l 5. Cassia occidentalis L. Plant annual, 0.5-1.5 m. tall, herbaceous, glabrous : leaf- 
hn -12, the blades lanceolate, becoming lance-elliptic, subglaucous beneath, 3.6-5 cm. 
lon ; 1-2 em. wide: petiolar glands 2, sessile, conical, between the lowermost pair of 
eallets : stipules filiform, caducous: flowers large m oe eee ee ee 
calyx-lobes rather short, oval or lance-ovate: pods linear, turgid, slightly compressed, 
glabrous, straight, or arcuate, with the septa externally prominent, 11 cm. long, 6 mm. 
wide : seeds numerous, transverse. 
oie ed Shem Virginia and Indiana to Florida and Mexico. Adventive or naturalized from 
b > Cassia Marylandica L. Plant perennial, 1-2 m. tall, branching, herbaceous, gla- 
rous : leaflets 12-20, the blades acute-elliptical, submucronate, glaucous heneath, slightly 
asymmetrical at the base, 4-5 cm. long, about 1.4 cm. wide: petiolar gland obconical, 
stipitate, situated a short distance above base of rhachis : stipules Aliform, ciliate, caducous: 
racemes short, many-flowered : calyx-lobes oval, more or less petal-like : pods falcate, flat, 
near, somewhat hispid, with undulate margins, 10-12 em. long, 6 mm. wide: seeds 
numerous, transverse, 
In moist or alluvial soil, Connecticut to Florida, Nebraska, Kansas and Louisiana. 
