Emu 
LEGUMINOSJE, (PULSE FAMILY.) 95 
12. WISTARIA, Nutt. 
Calyx campanulate, somewhat 2-lipped ; the upper lip broad, 2-cleft, the lower 
3-cleft. 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. (Thyrsanthus frutescens, Æl.) — Margins of swamps, 
Florida to North Carolina, and west to Mississippi. April and May. — Leaflets 
V long. Racemes 4'-6' long, 2'-3'in diameter. Legume 1 -several-seeded, 
Bracts large, caducous. 
18. 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 without ; 
keel obtuse, cohering with the wings. Stamens monadelphous or diadelphous. 
Style smooth or laterally bearded. Legume compressed, linear, many-seeded. — 
Perennial herbs, with unequally pinnate leaves, with the leaflets opposite mucro- 
nate and straight-veined, and white or purplish flowers. 
* Flowers single or by pairs in the axils of the leaves ; ^ uppermost ftn crowded in 
a dense raceme. 
1. T. Virginiana, Pers. (Goar’s Ruz.) Sofi-hairy and somewhat 
hoary; stems very leafy, clustered, erect, simple ; leaflets 11-25, oblong or 
linear-oblong, acute or obtuse, smoothish above; flowers yellowish-white tinged 
with purple. — Dry pine barrens, Florida to Mississippi, and northward, June 
and July. — Stems 1? - 2° high, from long and slender roots. Flowers showy. 
* * Flowers in long-peduncled racemes opposite the leaves: vexillum pubescent 
externally, 
2. T. spicata, Torr. & Gray. Hirsute or villous with rusty hairs ; stems 
simple or diffusely branched; leaves scattered, short-petioled ; leaflets 9 — 15, 
oval or cuneate-oblong, rounded and strongly mucronate at the apex, smooth- 
ish above; racemes 2-3 times as long as the leaves, 6 -10-flowered ; lobes 
of the calyx linear-subulate ; flowers large, white and purple. (T. jiaki, 
Nutt. Galega villosa, Miche. ) Varies with linear, acute, and reflexed leaflets, 
the odd one elongated. — — Dry soil, Florida to North Carolina, and Vélitwand. 
June and July. — Stems 19 - 2° long. 
3. T. hispidula, Pursh. Hoary-pubescent or smoothish ; stems slender, 
; €rect or procumbent ; petiole shorter than the lowest leaflets ; leaflets 11 - 
15, small (4" 6» long), oblong, acute or obtuse, often smooth above ; peduncles 
T, terete, commonly longer than the leaves, 2— 4-flowered ; flowers small, T 
