94 LEGUMINOSJ. (PULSE FAMILY.) 
to Mississippi, and northward. May and June.— Shrub 69-159 high. Leaf 
lets 1'-1j'long. Racemes mostly panicled. 
2. A. herbacea, Walt. Pubescent or glabrous; leaves short-petioled ; 
leaflets 15 — 35, rigid, oval or oblong, conspicuously dotted ; racemes spicate, sìn- 
gle or panicled; calyx-teeth villous; the two upper ones short and obtuse, the 
lower more or less elongated and acute ; legume 1-seeded. (A. pumila, Michz. 
A. pubescens, Willd. A. Caroliniana, Croom.) — Low pine barrens, Florida to 
North Carolina, and westward. June and July.— Shrub 29 - 49 high, with pur- 
ple branches. Leaflets smaller and more crowded than in No. 1. Flowers blue 
or white. 
3. A. canescens, Nutt. Hoary-tomentose; leaves sessile; leaflets nu- 
merous, small, elliptical, erowded ; spikes short, panicled, dense-flowered ; calyx- 
teeth acute, nearly equal; legume 1-seeded.— Near Augusta, Georgia, and 
westward. July and August. — Shrub 19 -2° high. Flowers bright blue. 
ll. ROBINIA, L. :Locusr. 
Calyx short, 5-toothed or 5-cleft, the two upper teeth shorter and more or less 
united. Vexillum large, roundish; keel obtuse. Stamens diadelphous (9 & 
1) Style bearded on the side facing the vexillum. Legume compressed, many- 
seeded, the seed-bearing suture margined, Seeds flat. — Trees or shrubs, often 
with stipular spines, unequally pinnate leaves, and showy white or rose-colored 
flowers in axillary racemes. 
1. R. Pseudaeacia, L. (Locust. Farse Acacia.)  Smoothish ; 
spines small on the older branches, straight; leaflets 9-17, oblong-ovate, or 
elliptical; racemes pendulous, oblong, many-flowered ; flowers white ; legume 
4 —6-seeded. — Rich soil, in the upper districts. April and May. — A tree 30? - 
60° high, with hard and durable wood. Racemes 3'-5'long. Calyx spotted. 
Legume smooth. Flowers fragrant. 
2. R. viscosa, Vent. Branches, petioles, peduncles, and legumes glandular- 
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 and June. 
— A tree 20°- 40° high. Flowers inodorous. 
: 3. R. hispida, L. Branches, &c. more or less bristly ; stipules very slen- 
der and bristle-like, deciduous ; leaflets 11 — 18, smooth, ovate or oblong-ovate, 
rounded or slightly cordate at the base, tipped with a long bristle; flowers lage — 3 
in a loose and mostly pendulous raceme, bright rose-color. — Mountains of Geor- — — 
gia and North Carolina, both the ordinary form and the var. ROSEA, Pursh, with 
pubescent branches and few-flowered racemes. May.— Shrub 3° ~8° high. d 
Var. Elliottii, Branches, &c. pubescent; stipular spines very stout, spread- ——— 
ing or recurved. (R. hispida, var. rosea, Ell.) — Pine barrens in the central 
parts of Georgia and southward. — Shrub 39-59 high, with thick and rigid 
branches. A still smal Bo, sut apace me 
