96 LEGUMINOS&. (PULSE FAMILY.) 
5—7, cuneate-obovate, obtuse or emarginate, smooth above; peduncles longer 
than the leaves, terete, 2-3-flowered ; calyx-teeth short, acute. — Varies with | 
. smaller (g-u long) leaves and flowers, the latter mostly solitary on the short 
- peduncles.— Dry pine barrens, Florida, Georgia, and westward. — Stems 6!- 
18' long. 
5. T. ambigua, M. A. Curtis. Hoary-pubescent, or nearly smooth ; stems 
decumbent, angled ; leaves scattered, long-petioled (5' - 6' long); leaflets 7 — 15, 
distant, wedge-oblong, truncate or emarginate at the apex, paler and often 
smooth above, purplish and strongly veined beneath ; peduncles flattened, equal- 
ling or exceeding the leaves, few-flowered ; calyx-teeth short, acute ; flowers 
white and purple.— Dry sandy soil, Florida to North Carolina. June and 
July. 5 
6. T. angustissima, Shuttl. Smooth or nearly so throughout; stems slen- 
der, prostrate, diffusely branched ; leaves short-petioled ; leaflets 10-15, linear, 
acute, mostly opposite; racemes very slender, longer than the leaves, bearing 
2-4 small scattered flowers ; calyx slightly pübescent, with triangular-ovate 
acute teeth. — South Florida, Rugel.— Stem 19 long. Leaflets 8” —12" long, - 
1" wide, spreading. Corolla about 3" long. 
14. INDIGOFERA, L. Inpico. 
Calyx 5-cleft, Vexillum roundish. Keel with a subulate spur on each side, 
often elastically reflexed. Stamens diadelphous (9 & 1). Legume 1-many- 
seeded. Sceds usually truncated at each end, often separated by membrana- 
ceous partitions. — Herbs with unequally pinnate leaves, and white, brownish, or 
purplish axillary flowers. Legumes-drooping. 
* Racemes longer than the leaves. — Indigenous species. - 
1. I. Caroliniana, Walt. Smoothish ; stem erect, tall, branching ; leaf- 
lets 10-15, obovate or oblong ;- racemes many-flowered ; calyx-teeth short, 
acute; flowers yellowish-brown ; legume oblong, veiny, 2-seeded. — Dry pine 
barrens, Florida to North Carolina. July and August. )| — Stem 39-59 
high. Flowers small Legume 4" -5" long. 
2. I. leptosepala, Nutt. Rough hairy; stem decumbent; leaflets 7-9, 
obovate-oblong or cuneate ; racemes 6 —15-flowered ; calyx-teeth slender-subu- 
late ; flowers pale-scarlet ; legume linear, even, 6- Saved. — Georgia, Nuttall, 
South Florida, oe and westward.— Stem 2°-3° long. Legume 1y 
zm e * * Racemes: Eur tos the leaves. — Introduced species. 
3. eo aen, L. Stem erect; leaflets 9-11, oval, peesi beet 
Vene Menlo, curved. — Waste places. August. nri 
54. Xe An Stem erect ; leaflets 7 —15, oval ; ogame compressed ert 
thickened at nn Gee. Waste places, , 
