100 LEGUMINOS^. (rULSE FAMILY.) 



1. Z. tetraphylla, Michx. Perennial, smooth or dow-ny ; leaflets 4, lance- 

 olate or ohlonj,^-obovatc ; racemes 3 - 9-flowcred, much longer than the leaves; 

 the flowers distant and almost concealed by tlic large ovate bracts ; legume his- 

 pid, 3- 4-jointcd. — Dry sandy soil, Florida to North Carolina, and westward. 

 June- August. — Stem 2° long, prostrate. 



22. STYLOSANTHES, Swartz. 



Flowers of two kinds : one kind perfect, but sterile ; the other destitute of 

 calyx, corolla, and stamens, and fertile. Calyx 2-bracted, 2-lipped, 5-clcft ; the 

 tube long and slender. Corolla inserted on the throat of the calyx. Keel en- 

 tire at the apex. Stamens monadclphous, with the alternate anthers linear and 

 ovate. Style of the fertile flower hooked. Legume veiny, 1 - 2-jointed, the lower 

 joint empty. — Low herbs. Leaves trifoliolate. Stipules united with the peti- 

 oles. Flowers in a short and dense terminal spike. 



1. S. elatior, Swartz. Perennial; stem mostly erect, 6' -12' high, pu- 

 hescent in lines, or sometimes hispid; leaflets rigid, lanceolate, strongly veined; 

 stipules sheathing ; spike few-flowered ; bracts bristly; flowers yellow. (S. his- 

 pida, Michx.) — Sandy pine barrens, Florida and northward. June- August. 



23. CHAPMANNIA, Torr. & Gray. 

 Flowers nearly as in Stylosanthes. Corolla inserted on the throat of the 

 calyx. Keel 2-clcft at the apex. Anthers alike, oblong. Legume hispid, 1-3- 

 jointed. — A viscid and hirsute branching herb, with unequally pinnate leaves, 

 small and free stipules, and small yellow flowers in terminal racemes. 



1. C. Floridana, Torr. & Gray.— East Florida. May. — Stem slender, 

 2° -3° high. Leaflets 3-7, oblong. Racemes often branching, few-flowered. 



24. LESPEDEZA, Michx. Bush-Clover. 



Calyx 2-bractcd, .5-clcft ; the teeth subulate. Corolla inserted on the base of 

 the calyx. Stamens diadclphous (9 & 1 ). Anthers alike. Legume small, len- 

 ticular, indehiscent, 1 -seeded. —Perennial herbs, with trifoliolate leaves, and 

 small flowers in axillary racemes or spikes. 



* Flowers of two kinds, vis. perfect, but mostly sterile, borne in spikes or racemes, 

 and fertile, hut destitute of corolla and .stamens ; ike latter commonly in sessile clus- 

 ters : corolla purple, longer than the calyx. 



1. L. repens, Torr. & Gray. Stem slender, prostrate ; leaflets small, oval, 

 mostly emarginate, the petiole very short, or as long as the lateral leaflets ; ra- 

 cemes few-flowered, on filiform peduncles much longer than the leaves ; legume 

 roundish. (L. procumbens, McAr.) — Dry sandy soil, Florida to Mississippi, 

 and northward. August. — Plant 1° - 2° long, smooth or tomentose. 



2. L. Violacea, Pers. Stem erect or spreading ; leaflets varying from el- 

 liptical to linear, pubescent with apprcssed hairs beneath ; fertile flowers in 

 axillary clusters ; legume ovate, smooth, or with scattered appressed hairs, much 

 longer than the calyx. 



