LEGUMINOSAE (PULSE FAMILY) 505 



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

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

 pairs ; porfs thickish, 5-9 cm. long, their segments much shorter than broad; 

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

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

 s. to Ga. and Tex. Aug. 



3. C. T5ra L. Annual ; leaflets 3 or rarely 2 pairs, obovate, obtuse, with 

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

 1.5 dm. long, curved. (C. 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. occidentIlis 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 bojder, glabrous. — Waste places and shores, Va. to Fla. and Tex. ; 

 northw. 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 loioest pair of leaflets ; anthers all perfect ; 

 flowers in small clusters above the axils ; pods flat. 



5. C. Chamaecrista L. (Partridge Pea.) Annual, suberect; 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 south w., except in the upland regions. 

 July-Sept. 



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

 111. (McDonald), and southw. 



6. C. depressa Pollard. Slender procumbent perennial (?) ; branches starting 

 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. CERCIS L. Redbdd. Judas Tree 



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

 the wings, and inclosed by them in the bud ; the keel-petals larger and not 

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

 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. (Redbud.) Leaves pointed; pods nearly sessile above 

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

 A small ornamental tree, often cultivated. 



9. BAPTISIA 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 o-foliolate (rarely simple) 

 leaves, which generally blacken in drying, and raceined flow^ers. (Name from 

 ^aiTTi^eLv, to dye, from the economical use of some species, which yield a poor 

 iftdigo.) 



