90 lkgiminos.*:. (pulse family.) 



stipules linear-subulate, elongated, adnate below to tbe petioles ; racemes erect, 

 densely inany-ilowered ; flowers pale red, tbe vexillum dark • purple in the 

 centre; legume very woolly. — Dry sandy barrens, Florida to North Carolina. 

 April. — Stems l°-2° long. Leaves (with the petiole) 6' -8' long. 



-'}• L. ditfllSUS, Nutt. Perennial; silky-tomentosc and hoary ; stems pros- 

 trate or erect, much branched ; leaves simple, oblong or obovatc, obtuse, short- 

 petioled ; stipules short, often wanting on tbe branches ; racemes many-flowered ; 

 Bowers blue, the vexillum dark purple in the centre; legume woolly. — Dry 

 sand-ridges, Florida to North Carolina. April and May. — Stems 1°- 2° high. 

 Leaves 2' - 4' long. 



3. MEDICAGO, L. 



Calyx 5-elcft ; the lobes subulate or setaceous. Corolla deciduous. Vexillum 

 longer than tbe partly united wings and keel. Stamens 10, diadelpbous (9 & 

 1 ), equal. Style smooth. Legume falcate or coiled, 1 -many-seeded. — Herbs 

 or shrubs. Leaves trifoliolate. Stipules adnate to the petioles, mostly incised. 

 Flowers yellow, in axillary spikes. 



1. M. lupulina, L. Pubescent ; stem procumbent ; leaflets obovate, 

 toothed ; stipules nearly entire ; spikes globose, many-flowered ; flowers mi- 

 nute ; legumes reniform, 1 -seeded, black. — Waste places, Florida and north- 

 ward. Introduced. — Stem 1° - 2° long. 



4. MELILOTUS, Tourn. Melilot. Sweet Clovkr. 



Calyx 5-toothed ; the teeth long and equal. Corolla deciduous. Wings and 

 keel cohering. Stamens diadelpbous (9 & 1). Legume ovoid, coriaceous, 

 veiny or rugose, longer than the calyx, 1-4-sceded, scarcely dehiscent. — 

 Smooth herbs. Leaves trifoliolate. Leaflets often toothed. Stipules adnate to 

 the petioles* Flowers yellow or white, in axillary racemes. 



1. M. officinalis, Willd. Stem erect, branching j leaflets ohovatc-oblong, 



toothed ; flowers yellow; vexillum striped with brown, as long as the keel ami 

 wings ; legume obovate, rugose. —Cultivated ground. Introduced. Qp and (g) 

 — Stems ]°-.'i° high. Legumes drooping, 2-seeded. 



2. M. alba, Lam. Stem erect, branching j leaflets oblong, truncate, ser- 

 rate; racemes elongated ; flowers white; vexillum longer than the wings and keel; 

 1. gun* 3 ovate, rugose, l-sceded. (M. leucantha, Koch.) — Cultivated grounds. 

 Introduced. — Legumes drooping. 



5. TRIFOLIUM, L. Clots*. 



th subulate or setaceous. Corolla withering or p 

 Ont ; the keel -hotter than the win--, and united with them by their claws. Sta- 



mens diadelpbous i'.i & l). Legume smooth, membranaceous, 1-6-seeded, often 

 shorter than the calyx, scarcely dehiscent — Tufted or diffuse herbs. Leaves 

 trifoliolate, the leaflets mostly toothed. Stipules adnate to the petioles. Flow- 

 ers (in our Bp4 cics) capitate. 



