146 LEGUMINOS^. (pulse FAMILY.) 



than the wings, incurved, acute. Stamens monadelphous below. Style bearded 

 down the inner face. Pod h'near-oblong, flattish, knotty, several-seeded, pointed 

 with tlie base of the style. — Erect or twining perennials, with mostly piunately 

 3-foliolate stipellate leaves, and very large flowers. Peduncles 1 -3-flowered; 

 bractlets opposite, striate. (Derivation recondite.) 



1. C. Mariana, L. Low, ascending or twining, smooth ; leaflets oblong- 

 ovate or ovate-lanceolate; stipules and bracts awl-shaped; peduncles short; 

 the showy pale-blue flowers 2' long. — Dry banks, N. Y. to Ya. and Fla., west 

 to Mo. and Tex. 



37. AMPHICARP^A, Ell. Hog Pea-nut. 



Flowers of 2 kinds ; those of the racemes from the upper branches perfect, 

 but seldom ripening fruit ; those near the base and on filiform creeping branches 

 with the corolla none or rudimentary, and few free stamens, but fruitful. Ca- 

 lyx about equally 4- (rarely 5-) toothed ; bractlets none or minute. Keel and 

 wing-petals similar, almost straight ; the standard partly folded round them. 

 Stamens diadelplious. Style beardless. Pods of the upper flowers, when 

 formed, somewhat scymetar-shaped, stipitate, 3 - 4-seeded ; of the lower ones 

 commonly subterranean and fleshy, ol)ovate or pear-shaped, ripening usually 

 but one large seed. — Low and slender perennials; the twining stems clothed 

 witli brownish hairs. Leaves piunately 3-foliolate ; leaflets rhombic-ovate, sti- 

 pellate. Flowers in simple or com])ouud racemes, purplish. Bracts persistent, 

 round, partly clasping, striate, as well as the stipules. (Name from ajmcpi, both. 

 and Kapir 6s, fruit, in allusion to the two kinds of pods.) 



1. A. monoica, Nutt. Leaflets thin, ^-2' long; racemes nodding: 

 calvx of upper flowers 2" long, tlie ovary glabrous except the hairy margin; 

 pod r long; ovary and pod of the rudimentary flowers hairy. — Rich damp 

 woodlands, common. Aug., Sept. 



2. A. Pltcheri, Torr. & Gray. Leaflets usually 2 -4' long; rhachis of 

 the racemes usually villous ; calyx 3" long, the teeth acuminate ; ovary hairy. 

 — Western N. Y. to 111., Mo., La., and Tex. The upper flowers more com- 

 monly fertile ; apparently producing subterranean fruit but rarely. 



38. GALACTIA, P. Browne. MilkPea. 



Calyx 4-cleft ; the lobes acute, the upper one broadest, entire. Keel scarcely 

 incurved. Stamens diadelphous or nearly so. Style beardless. Pod linear, 

 flat, several-seeded (some few of them rarely partly subterranean and fleshly or 

 deformed) . — Low, mostly prostrate or twining perennial herbs. Leaflets usu- 

 ally 3, stipellate. Flowers in somewhat interrupted or knotty racemes, purplish ; 

 in .summer. (Name from yd\a, -aKros, milk : some species being said to yield 

 a milky juice, wliich is unlikely.) 



1. G. glabella, Michx. Stems nearhi smooth, prostrate ; leaflets elliptical 

 or ovate-oblong, sometimes slightly hairy beneath ; racemes short, 4-8-flowered ; 

 pods somewhat hairy. — Sandy woods, southern N. Y. to Va., Fla., and Miss. 



2. G. pilosa, Ell, Stems (decumbent and somewhat twining) and leaves 

 beneath soft-doirni/ and hoari/ ; leaflets oval ; racemes many-flowered , pods very 

 doicnij. (G. mollis, Graij, Manual; not Michx.) — Penn. to Fla. and Miss, 



