ORDER XLm. LEGUMINOSuE. 281 



often slightly cuneate, mucronate, silky-pubescent ; petiole villous. 

 Flowers on long peduncles, opposite the leaves, bearing but few flowers, 

 4 — 5. Calyx hispid. Vexillum hairy on the outer surface. Legume 

 compressed, hispid. — Purplish-red. 2f . June — Sept. Common in pine 

 woods. 10 — 15 inches. T. spicata, T. & G. 



3. T. hispidu'la, (Pursh.) Stem erect, much divided, dichotomous, 

 slightly pubescent. Leaflets numerous, 11 — 17, elliptical-oblong, mucro- 

 nate, glabrous on the upper surface, hirsute on the lower, slightly re- 

 fuse. Racemes as long as the leaves, few-flowered, opposite the leaves. 

 Calyx very villous ; segments expanded. Legume, straight, mucronate, 

 somewhat hispid. Seeds reniform, compressed, spotted. — Pale red. If. 

 May — Aug. Dry soils. Common. 10 — 18 inches. 



4. T. chrysopuyl'la, (Pursh.) Stem prostrate, pubescent, dichoto- 

 mous. Leaves nearly sessile, with 5 — 9 leaflets, cuneate-obovate, obtuse, 

 coriaceous, smooth above, silky hirsute beneath. Peduncles longer than 

 the leaves, few-flowered, slightly compressed. Legume linear, 8 — 10- 

 seeded. — Reddish-purple. If. May — Aug. Comnii n around Savan- 

 nah; found in middle Georgia and Florida. 10 — 12 inches. 



Genus XXIL— GLYCYRRHl'ZA. Tourn. 16—10. 

 (From the Greek glukus, sweet, and rhiza, root.) 



Calyx tubular, gibbous, without bracteoles, bilabiate, 5-cleft. 

 Vexillum straight, ovate-lanceolate. Legume ovate, compressed, 

 1 — 4-seecled. Leaves unequally pinnate. 



1. G. lepido'ta. Roots long, creeping. Leaflets oblong-lanceolate, 

 acute, with glandular scales beneath. Legumes covered with hooked 

 bristles, 2 — 6-seeded. — Whitish. Missouri. 2 — 5 feet. Liquorice. 



Genus XX1IL— INDIGOFERA. L. 16—10. 

 (From indigo, a blue dye-stuff, and/ero, to bear.) 



Calyx 5-cleft, expanding, minute, subulate. VexiHum nearly 

 round, emarginate. Keel with a spur on each side. Stamens 

 diadelphous. Style filiform, glabrous. Legume 1 or many 

 seeded. 



1. I. Carolinia'na, (Walt.) Stem erect, branching, glabrous, striate. 

 Leaves unequally pinnate. Leaflets 5 — 6 pairs, mucronate, oval-oblong, 

 slightly pubescent, glaucous underneath. Flowers in slender axillary 

 racemes, a bract at the base of each pedicel. Calyx small, with 5 sub- 

 ulate teeth, pubescent. Keel longer than the vexillum. Legume short, 

 poiuted with the style. — Yellowish brown. If. July — Sept. Poor 

 soils. 3—7 feet. Indigo Plant. 



2. I. leptosep'ala, (Nutt.) Stem decumbent, rough. Leaves une- 

 qually pinnate. Leaflets 7 — 9, obovate-oblong, nearly glabrous on the 

 upper surface. Flowers in racemes longer than the leaves, nearly ses- 

 sile. Segments of the calyx equal, subulate. Legumes refiexed, linear, 

 nearly terete, 6 — 7-seeded, pubescent, terminated by the style. — Pale 

 scarlet. If. Georgia. 2 — 3 feet. 



