LEGUMINOS^. (pulse FAMILY.) 119 



August. — Stems 1°- 1^° higli. Leaflets shorter than the petiole. Flowers 

 small, ]iuiijlf. 



8. G. sessiliflora, Torr. & Gray. Stem short, smooth, simple ; leaflets 

 oblong or liuear-obloug, obtuse, smooth on both sides ; flowers crowded in 

 nearly sessile axillary clusters ; calyx hairy. — Dry pine barrens, Florida to 

 North Carolina. June -August. — Stem 6'- 12' high. Flowers M'hite. Le- 

 gume oblong-linear, tomeutose, 6 - 8-seeded. 



* * * Leaves pinnate : stems twining. 



9. G. Elliottii, Nutt. Leaflets 7-9, elliptical-oblong, emarginate, nearly 

 smooth and .shining above, pubescent beneath ; racemes longer than the 

 leaves, few-flowered near the summit of the peduncle ; corolla white tinged 

 with red ; legume oblong compressed, villous, falcate, 3 - 5-seeded. — Dry 

 soil, Florida to South Carolina, near the coast. May - June. — Plant some- 

 times silky throughout. 



34. CANAVALIA, DC. 



Calyx tubular, 2-lipped ; the upper lip larger, with two rounded lobes, the 

 lower entire or 3 clef t. Vexillum large, orbicular, with two ridges within; 

 keel incurved. Stamens monadelphous. Legume oblong-linear, compressed ; 

 the valves with a longitudinal ridge near the thickened upper suture. Seeds 

 separated by interposed cellular tissue: hiluni linear. — Prostrate or twining 

 herbs, with trifoliolate leaves, and showy flowers in axillary racemes. 



1. C. obtusifolia, DC. Smoothish; stem long, prostrate ; leaflets thick, 

 oval or orbicular, pointless ; racemes stout, longer than the leaves, 6-8- 

 flowered ; flowers rose-color ; legume 6-seeded. (C. rosea and C. miniata, 

 DC.) — Sandy shores of St. Vincent's Island, Florida, and southward. July - 

 Sept. — Stem 10° -15° long Leaflets 3' long. Legume 4'- 5' long, V wide. 

 Seeds brown. 



2. C. altissima, Macfadyen. Frntescent; stem climbing; leaflets ob- 

 long, mi;cronate-awned ; racemes many-flowered, the petals large, purple ; 

 legume slightly curved, ll-seeded, the seeds "ovoid, dark brown." — South 

 Florida (Feay), climbing over the tallest trees. — Legume 8' - 1 0' long, 1' - \\' 

 wide. 



3. C. gladiata, DC. Annual; stem climbing; leaflets thin, ovate; ra- 

 cemes many-flowered; petals white; legume falcate, 10- 12-seeded ; seeds 

 oblong, brownish red. — South Florida. August. — Leaflets 3' -4' long. 

 Legumes 1° long, \^' wide. Seeds V long. 



35. DIOCLEA, HBK. 



Calyx bibracteolate, 4-cIeft. Vexillum obovate-oblong, with two callosities 

 near the base, and a membranous expansion at the sides. Wings and keel 

 nearly equal, oblong. Stamens diadel]3hous. Style hooked, glabrous. Leg- 

 ume oblong, compressed, coriaceous, narrowly 2-winged, few-seeded. Seeds 

 oval, separated by a thin membrane. Ililum linear. — Trailing vines, with 

 trifoliolate leaves and red or purple flowers in axillary racemes. 



1. D. Boykinii, Gray. Perennial, pubescent ; leaflets thin, large, or- 

 bicular, abruptly acute ; racemes shorter than the leaves, many and densely 



