liBGUMINOSAE (PULSE FAMILY) 505 



2. C. MedsgSri Shafer. (Wild S.) Similar; root biennial (?); stipules 

 linear-lanceolate; petiolar gland short-cylindric to conic-ovoid; leaflets 7-10 

 pairs ; jiods thickish, 5-9 oiii. long, their segments much shorter than broad; 

 seed plump, oblong-obovoid, twice as long as thick. (C. m,arilandica Man. ed. 

 6, in part; C. acuminata Moenoh ?) — Dry gravelly soil, Pa. to la. and Kan., 

 s. to Ga. and Tex. Aug. 



3. C. T6ra L. Annual ; leaflets 3 or rarely 2 pairs, ohovate, obtuse, with 

 ■ an elongated gland between those of the lower pairs or lowest pair ; pods slender, 



1.5 dm. long, curved. (0. obtusifolia L.) — River-banks, etc., s. Va. to Fla. and 

 Tex.; northw. in Miss, basin to Kan., Mo., and Ind. July-Sept. (Trop. 

 regions. ) 



4. C. occiDENiiLis L. Annual ; leaflets 4-6 pairs, ovate-lanceolate, acute ; 

 an ovoid gland at the base of the petiole; pods long-linear (12 cm. long), with 

 a tumid border, glabrous. — Waste places and shores, Va. to Fla. and Tex. ; 

 Eorthw. in Miss, basin to Mo. and Ind. Aug., Sept. (Nat. from the tropics.) 



** Leaflets small, somewhat sensitive to the touch; stipules striate, persistent; 

 a cup-shaped gland beneath the lowest pair of leaflets ; anthers all perfect ; 

 flowers in small clusters above the axils ; pods flat. 



5. C. Chamaecrista L. (Partridge Pea.) Annual, subercct; branches 

 usually simple, ascending ; pubescence subappressed, usually scanty ; leaflets 

 10-15 pairs, linear-oblong, oblique at the base ; flowers {large) on slender pedi- 

 cels, 2 or 3 of the showy yellow petals often with a purple spot at base ; anthers 

 10, elongated, unequal (4 of them yellow, the others purple); style slender. — 

 Sandy fields, Mass. to Minn., and southw., except in the upland regions. 

 July-Sept. 



Var. robusta Pollard. Stouter, hirsute with spreading hairs. — Ky. (Short), 

 111. (McDonald), and southw. x 



6. C. depr^ssa PoUard. Slender procumbent perennial (?) ; branches staning 

 from near the base, usually again branched; leaflets (4-10 pairs) smaller and 

 less numerous and flowers larger and later than in the otherwise similar C. 

 Chamaecrista. — Potosi, Mo. (Pech) to Miss, and Fla. July-Sept. 



7. C. nictitans L. (Wild Sensitive Plant.) Leaflets 10-20 pairs, oblong- 

 linear ; flowers very small, on very short pedicels; anthers 5, nearly equal; 

 style short. — Sandy fields, N. E. to Fla. , w. to Kan. and Ariz, July-Sept. 



8. CJ^RCIS L. Redbud. Judas Tree 



Calyx 5-toothed. Corolla imperfectly papilionaceous ; standard smaller than 

 the wings, and inclosed by them in the bud ; the k«el-petals larger and not 

 united. Stamens 10, distinct, declined. Pod oblong, flat, many-seeded, the 

 upper suture with a winged margin. Embryo straight.— Trees, with rounded 

 heart-shaped simple leaves, caducous stipules, and red-purple flowers in umbel- 

 like clusters along the branches of the last or preceding years, appearing before 

 the leaves, acid to the taste. (The ancient name of the oriental Judas Tree.) 

 ^ 1. C. canadensis L. (Redbcd.) Leaves pointed ; pods nearly sessile above 

 the calyx. — Rich soil, N. Y. and N. J. to Fla., w. to s. Ont., c. Neb., and Tex. — 

 A small ornamental tree, often cultivated. 



9. BAPTfSIA Vent. False Indigo 



Calyx 4-5-toothed. Standard not longer than the wings, its sides reflexed ; 

 keel-petals nearly separate, and, like the wings, straight. Stamens 10, distinct. 

 Pods stalked in the persistent calyx, roundish or subcylindric, inflated, pointed, 

 many-seeded. — Perennial herbs, with palmately S-foliolate (rarely simple) 

 leaves, which generally blacken in drying, and racemed flowers. (Name from 

 /Sairi-ifeii', to dye, from the economical use of some species, which yield a poor 

 indigo.) 



