CASSIACEAE 661 
mostly equal in size, but unequal in shape. Perfect stamens usually 7, accom- 
panied by 3 staminodia: larger anthers unappendaged. Pod mostly flat, de- 
hiscent along both sutures. Seeds transversely placed or oblique.—More than 
100 species, natives of tropical and temperate regions.—NIGGER-COFFEES. 
COFFEE-WEEDS.—The seeds of some species are used as a coffee-substitute. 
Blades of the leaflets of a lanceolate, ovate type, acute or acuminate, 
Leaflets with broad blades: gland near the base of the petiole pl aN pod 
thick-margined. . D. occidentalis. 
Leaflets with narrow blades : gland near the base of the 
petiole elongate. 2. D. ligustrina. 
Blades of the leaflets of an elliptic type, exceptionally elliptic- 
lanceolate, prominently mucronate. 
ue long- hai iry: pod-valves with divisions fully as long 
wide. 3. D. marylandica. 
Ona short-hairy : pod-valves with divisions much shorter 
than wide. 4, D. Medsgeri. 
1. D. occidentalis (L.) Britton & Rose. Plant annual, 5-15 dm. tall, nearly 
glabrous: leaflets 8-12; blades ovate to ovate-lanceolate, somewhat acuminate, 
6-5 em > long; : stipules broadly lanceolate: 
pet 15 “19 mm 
. Nice FFEE. STYP- 
TIC-WEED.)—Pinelands, cult. grounds, and 
Kans. and Va. Nat. of trop.— —(W. Te, Mez., 
C. A., S. A., 0. W.)— oum. or all year S. 
D. ligustrina (L.) Britton & bd se. 
re partly woody, 6—20 dm. tall, nearly 
iod ins ts 12-16; blades neo 
often narrowly so or inear-lanceo ate, = 
em. MS stipules linear-lanceolate: sepal 
9-12 mm. long, the larger ones obovate: petals 13-16 mm. long: pod curved, 
flat, prominently margined, 7— - mm. wide. [Cassia ligustrina L.]—Hammocks, 
pen. —(W. I,)—All yea | 
D. marylandica (L.) Britton & Rose. Plant perennial, 8-20 dm. tall, 
sparingly abso leaflets 12-20; blades i s e gee d muero- 
nate, 4—5 long: petiolar glan nd obconi tipitate, near the base of the 
rachis: cone 6-8 mm. long: petals 10-12 m jor ps. = ee pod 
curved, somewhat aie 10-12 em. long: seed flat, nearly as wide as long. 
assia na ndica L.]—(WiILP-SENNA.)—Moist stream- banks and alluvial 
soil, various provinces, N. C. to Tenn., Ind., and Mass.—Sut 
4. D. Medsgeri (Shafer) viae s Rose. Plant perennial, similar to 2. 
marylandica in habit: leaflets ; blades elliptie to elliptic-lanceolate, 3-6 
em. lo mueronate: petiolar Ene subglobose, near the base of the rachis: 
stipules incdus sepals 5-8 mm. long: ‘petals 9—11' mm. long, obovate 
to broadly spatulate: pod faleate, glabrous, 6-10 cm. long, 8-11 mm. wide. 
assia Medsgeri Shafer.|—-(WILD-SENNA.)—-Woods, and pda various 
provinees, Fla. to Tex., Kans., la., an a.—Sum.-fall—Ditremexa Nashii 
Britton & Rose, closely related to D. Me edsgeri, but with the meu more ee 
approaching a "lanceolate type, occurs in central pen. Fla 
5. PEIRANISIA Raf. Shrubs or trees. Leaflets| several or many: 
blades broadest above the middle or below it. Flowers in axillary clusters or 
