LEGUMINOS.F.. (pulse IAMU.Y.) 91 



* Fruiting rdlijr erecf. 



1. T. pratense, L. (Red Clover.) Ilaiiy ; stems erect; leaflets ob- 

 long-ovate or oval, often emarginate, slightly senulatc ; heads large, ovate ; 

 calyx -teeth setaceous, jiairy ; flowers purple. — Around dwellings. Introduced, 

 but scarcely naturalized, at least in the low country. — Steins 1°- 2° high. 

 Leaves usually marked with u ])ale 3-angled spot above. 



2. T. arvense, L. (Rahrit-foot Clover.) Softly pubescent ; stems 

 erect; leaflets linear-oblong, minutely 3-toothcd ; heads oblong; calyx-teeth se- 

 taceous, plumose ; corolla white, with a purple spot on the wings. — Old lields, 

 chiefly in the upper districts. Introduced, (j) — Stems 8' - 12' high. 



* * l^niitinfj calijx rejlexdl. 

 n. T. rcflexum, L. (Buffalo Clover.) I'ubcscent ; stems ascending ; 

 leaflets roundish oi- obcordate, toothed, the uppermost oblong ; heads globose ; 

 calyx-tube very short, the subulate teeth long and liairy ; vcxillum broadly ovate, 

 purple; the wings and keel white; legume 3 -.'i-seedcd. — "Waste places and 

 pastures, Florida to North Carolina, and northward. April and !May. @ and 

 @ — Stems C - 1 li' long. Heads large. 



4. T. repens, L. (White Clover.) Smooth; stems creeping; leaf- 

 lets roundish or obcordate ; heads globose, long-pedunclcd ; calyx-teeth short ; 

 flowers white ; legume 4-seeded. — Pastures and around dwellings. Introduced. 

 May. 11. — Stems C'-12' long. 



5. T. procumbens, L. Pubescent; stems slender, erect or procumbent ; 

 leaflets small, thin, obovatc or obcordate, toothed, the middle one stalked ; 

 heads small, ovate; flowers yellow; legume 1-seeded. — Waste places ; more 

 commoa in the upi>er districts. Introduced. Q) — Stems G'- 12' long. 



6. T. Carolinianum, Michx. Pubescent ; stems tufted, prostrate ; leaf- 

 lets small, obcordate, slightly toothed ; heads roundish, long-pcduncled ; flowers 

 white, tinged with purple ; vcxillum acute; legume 4-scedcd. — Fields and pas- 

 tures, Florida to North Carolina, and westward. March and April, y. — 

 Stems 6' -10' long; in shady places erect. 



6. HOSACKIA, Dougl. 



Calyx .5-cleft. Vcxillum as long as the keel and spreading wings. Stamens 

 diadelphous (9 «& 1 ). Legume cylindrical or compressed, smooth, wingless, 

 many-seeded. — Herbs. Leaves trifoliolatc or pinnate. Stipules mostly minute 

 and gland-like. Peduncles 1 -several-flowered. 



1 H. Purshiana, Benth Hairy; stem much liranchcd ; leaves trifolio- 

 latc, with oblong leaflets ; peduncle 1 -flowered, longer than the leaves ; keel 

 acute; bracts simple ; legume linear, nearly terete. — North Carolina. — Stem 

 12'- 15' high. Flowers rose-color. 



7. PSORALEA, L. 



Calyx campannlate, 5-cleft, with the lobes acute. Stamens diadclphous or 

 l)artly monadelphous : half of the anthers often imperfect. Legume often 



