LEGUMINOSiE. (PULSE FAMILY.) 97 



* * Leaves trifoJiolate. 



6. C. pumila, Ortega. Shrubby or perennial ; stem slender, decumbent ; 

 leaflets small, cuneate, emarginate, longer than the petiole ; peduncles longer 

 than the leaves, few-flowered ; corolla small ; legume oval, pubescent, few- 

 seeded. — Sandy beach at Casey's Pass, South Florida. Oct. — Stem 2°- 

 3° long. 



7. C. incana, L. Annual, tall, much branched, pubescent ; leaves long- 

 petioled ; leaflets round-obovate ; racemes stout, many-flowered ; keel of the 

 corolla toraentose on the margins ; legume oblong, hairy. — South Florida, 

 near the coast. — Stems 2° -4° high. 



2. LUPINUS, Tourn. Lupine. 



Calvx 2lipped, .^toothed. Vexillum with the sides reflexed. Keel falcate, 

 acute. Stamens monadelphous, with alternate anthers oblong and roundish. 

 Legume oblong, compressed, many-seeded ; the seeds often separated by cel- 

 lular partitions. — Herbs, with simple or palmately 5 - many -foliolate leaves, 

 and showy flowers in terminal racemes. 



1. L. perennis, L. Stem pubescent, erect; leaves palmately 7-9-folio- 

 late ; leaflets obovate-oblong, obtuse, more or less hairy ; stipules minute ; 

 racemes long, loosely many-flowered ; flowers purplish or purplish blue, rarely 

 white. — Var. gracilis (L. gracilis, Nutt.) is a more slender and hairy form, 

 with smaller and narrower, often acute leaflets. — Dry sandy soil. April - 

 May. 11 — Stem 1° - 1^° high. 



2. L. villosus, Willd. — Biennial , villous and hoary'; stems thick, pros- 

 trate or ascending ; leaves simple, lanceolate-oblong, mostly acute, long-peti- 

 oled ; stipules linear-subulate, elongated, adnate below to the petioles ; racemes 

 erect, densely many-flowered ; flowers pale red, the vexillum dark purple in 

 the centre ; legume very wooll^^ — Dry sandy barrens in the lower districts. 

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



3. L. dififusus, Xutt. Perennial ; silky-tomentose and hoary ; stems 

 prostrate or erect, much branched ; leaves simple, oblong or obovate, obtuse, 

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

 flowered ; flowers blue, the vexillum dark purple in the centre ; legume woolly. 



— With the preceding. April -May. — Stems I°-2° high. Leaves 2' -4' 

 long. 



3. MEDICAGO, L. 



■ Calyx 5-cleft ; the lobes subulate or setaceous. Corolla deciduous. Vexil- 

 lum longer than the partly united wings and keel. Stamens 10, diadelphous 

 (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. Introduced, (l) 



— Stem l°-2° long. 



7 



