LEGUMINOS^. (pulse FAMILY.) 99 



ered ; calyx-teeth shorter than the tube ; flowers nearly white, the keel tipped 

 with blue ; legume oblong, several-seeded. — Dry open woods, chiefly in the 

 upper districts. April and May. % ~ Stems 3° - 4° long, branching. Flowers 

 4" - 6" long. 



19. LATHYRUS, L. 



Style flattened, bearded on the side facing the vcxillnm. Othcnvise as in 

 Yicia. 



1. L. pusillus, Ell. Annual; leaflets 2, linear-lanceolate, acute ; stipules 

 sagittate ; peduncles elongated, 1 - 2-flowcred ; teetli of the calyx subulate-seta- 

 ceous, nearly equal; legume long, 10-15-sccdod. — Near Charleston, South 

 Carolina, and westward. May. — A small and slender vino. Flowers purple. 



2. L. VenOSUS, Muhl. Perennial; stem stout; leaflets 10-14, oblong- 

 ovate, obtuse; stipules lanceolate; peduncles 10-20-flowered; flowers largo, 

 purple ; calyx-teeth very unequal. — Shady banks, Georgia to Mississippi, and 

 northward. June and July. — Stem angled, 2° - 3° long. Leaflets 2' - 3' Idng. 

 Flowers %' long. 



3. L. myrtifolius, Muhl. Perennial; stem slender, 4-angled; leaflets 

 4-6, oblong, obtuse ; stipules large, ovate, entire ; peduncles 3 - 6-flowered ; 

 flowers pale purple ; calyx-teeth unequal. — Banks of rivers, North Carolina, 

 and northward. July and August. — Stem 2° - 4° long, often wing-angled. 

 Leaflets 1 ^' long. 



20, -ffilSCHYNOMENE, L. 



Calyx 2-lipped, 5-cleft or 5-toothod. Petals equal ■ vexillum roundish. Sta- 

 mens diadelphous (5 & 5). Legume compressed, stipltate, separating trans- 

 versely into 3 or more 1-seeded indehiscent joints. — Herbs or shrubs, with pin- 

 nate leaves, and axillary yellow flowers. 



1. .31. hispida, Willd. Annual; stem erect, murieate-hispid ; leaflets nu- 

 merous, oblong-linear ; peduncles 3 - 5-flowered ; legume straight, linear, even 

 along the upper suture, wavy on the lower, 6 - lb-jointed, the joints nearly 

 square, hispid. — Swamps, Florida to Mississippi, and northward. August. — 

 Stem 2° -4° high. 



2. .SI. viscidula, Michx. Perennial; stem slender, prostrate, yiscid- 

 pubescent; leaves small; leaflets 7-9, obovate, reticulate- veined ; peduncles 

 3-4-flowered, the pedicels long aiid spreading; stipules and bracts ovate; 

 legume 2 - 3-jointed, the joints haUt'-orbicular, liispid. — Sandy places along 

 the coast, Florida and Georgia. August and Sept. — Stem l°-2° long. 

 Leaves 1' long. Flowers small. 



21. ZORNIA, Gmel. 



Calyx 2-lipped, the upper lip emarginate, the lower 3-cleft. Corolla inserted 

 into the base of the calyx. Stamens monadelphous, alternately shorter : anthers 

 alternately oblong and globose. Legume compressed, with 2-5 roundish hispid 

 joints. — Herbs. Leaves palmately 2- 4-foliolate. Stipules sagittate. Flowers 

 yellow, in axillary large-bractcd racemes. 



