LEGUMINOS^. (pulse FAMILY.) 103 



(9 & 1). Style bearded ou the side facing the vexillura. Legume com- 

 pressed, mauy-seeded, the seed-bearing suture margined. Seeds flat. — Trees 

 or shrubs, often with stipular spines, uueipially pinnate leaves, and showy 

 white or rose-colored flowers in axillary racemes. 



1. R. Pseudacacia, L. (Locust, False Acacia.) Smoothish ; spines 

 small on the older branches, straight; leaflets 9-17, oblong-ovate or ellip- 

 tical; racemes pendulou?, oblong, many-flowered; flowers white; legume 

 4 - 6-seeded. — Rich soil, in the upper districts. April - May. — A tree 30°- 

 60° high, witli hard and durable wood. Eacemes 3' - 5' long. Calyx spotted. 

 Legume smooth, flowers fragrant. 



2. R. viscosa, Vent. Branches, petioles, peduncles, and legumes gland- 

 ular-viscid ; spines very small ; leaflets 11-25, ovate and oblong, obtuse or 

 slightly cordate at the base, paler and pubescent beneath, tipped with a short 

 bristle ; flowers crowded in roundish erect racemes, rose-color ; legume 3-5- 

 seeded. — Banks of streams, on the mountains of Georgia and Carolina. 

 May -June. — A tree 20° -40° high. Flowers inodorous. 



3. R. hispida, L. Branches, etc. more or less bristly; stipules very 

 slender and bristle-like, deciduous ; leaflets 11 - 18, smootii, ovate or oblong- 

 ovate, rounded or slightly cordate at the base, tipped with a long bristle; 

 flowers large, in a loose and mostly pendulous raceme, bi-ight rose color. — 

 Mountains of Georgia and North Carolina, both the ordinary form, and the 

 var. ROSEA {Pursh), with pubescent brandies and few-flowered racemes. 

 May. — Shrub 3° - 8° high. 



\'ar. Elliottii. Branches, etc. pubescent; stipular spines very stout, 

 spreading or recurved. (R. hispida, var. rosea. Ell.) — Pine barrens in the 

 central parts of Georgia, and southward. — Shrub 3°- 5° high, with tliick and 

 rigid branches. A still smaller form, scarcely a foot high (var. nana, Ell.), is 

 found at Columbia, South Carolina. 



12. WISTARIA, Nutt. 



Calyx campanulate, somewhat 2-lipped ; the upper lip broad, 2-cleft, the 

 lower 3cleft. Vexillum large, with 2 parallel ridges at the base. Stamens 

 diadelphous (9 & 1). Legume coriaceous, nearly terete, contracted between 

 the seeds, at length 2-valved. — Twining shrubs, with unequally pinnate 

 leaves, and showy purple flowers, in a crowded raceme. 



1. W. frutescens, DC. Young leaves and branches silky-pubescent; 

 leaflets 9- 13, ovate-lanceolate or oblong; stipels none; racemes on short 

 branches, dense-flowered. — Margins of swamps in tlie lower districts. April - 

 May. — Leaflets V long. Racemes 4' -6' long, 2' -3' in diameter. Legume 

 1 - several-seeded. Bracts large, caducous. 



13. TEPHROSIA, Pers. 



Calyx nearly equally 5-cleft or 5-toothed. Vexillum large, roundish, spread- 

 ing or reflexed, usually white within, and reddish or purple and silky with- 

 out ; keel obtuse, cohering with the wings. Stamens monadelplious or dia- 

 delphous. Style smooth or laterally bearded. Legume compressed, linear, 



