286 ORDER XLITI. LEGUMINOS^. 



1. A. oiscorda'tts, (Ell.) Stan nearly glabrous, decumbent, or as = ur- 

 gent ; leaflets 15 — 25, obcordate, small, on petioles. Flowers in ovate 

 spikes. Calyx hairy, with subulate teeth. Legume* oblong, slightly 

 curved, acute. — White. 11. Southern Geo., Flor. 4 — 8 inches. 



2. A. Canadensis, (L.) Stem, erect, canescent, somewhat branched ; 

 leaflets very numerous, 25 — 11, oblong, pubescent underneath. Flowers 

 in compact, elongated, axillary spikes; peduncles long, bracts subulate. 

 Calyx hairy, teeth subulate, Muall. corolla much longer than the calyx. 

 Legume terete, glabrous, many-seeded. — Pale yellow. If. June — July. 

 Mountains. 1 — 3 feet. 



3. A. gla'ber, (Mich.) Stem erect, glabrous. Leaflets numerous, 15 — 

 23, small, linear oblong, hairy underneath. Flowers in elongated spikes, 

 few-flowered, 3 — 6 ; peduncles long as the calyx. Legume glabrous, 

 acute at each end, incurved. — Whitish. 2£. April. Low country of 

 Georgia. 1 — 2 feet. 



Genus XX XII.— PHA'CA. L. 16—10. 

 (From the Greek phake, a lentil.) 



Calyx 5-cleft, the two upper segments more remote than the 

 others. Keel obtuse. Style smooth ; stigma capitate. Le- 

 gume inflated, 1-celled. Flowers in axillary racemes. Her- 

 baceous. 



1. P. villo'sa, (Xutt.) A small, hairy plant, procumbent. Leaves 

 unequally pinnate ; leaflets 9 — 17, oval, oblong, petiolate, rather dis- 

 tant. Flowers on peduncles about as long as the leaves, clustered near 

 the summit, 8 — 20. Segments of the calyx acute, long, bracts lanceo- 

 late-subulate. Legumes villous, sessile, inflated. Seeds small, few. — 

 Yellow. Q. April — May. On the coast. 4 — 6 inches. 



Tribe VI.-HEDYSA'RE^E. 



Legume transversely divided into indehiscent, 1-seeded joints. 

 Erect or procumbent herbs or shrubs. 



Genus XXXIII.— ZOR'NIA. Gmel. 1G— 10. 

 (In honor of Zorn, a Medical Botanist.) 



Calyx bilabiate ; upper lip emarginate, the lower 3-cleft. 

 Petals inserted into the calyx ; vexillum broad-cordate, revo- 

 lute ; keel-petals cohering. Stamens monadelphous, alternately 

 Bhorter; anthers alternately oblong and globose. Legume 

 jointed, hispid, 4 — 5 joints. Leaves digitate, petioled, stipu- 

 late. Flowers with 2 bracts. Perennial, herbaceous plants. 



1. Z. TETKAnm.'i a. (Mich. trate, branching, diffuse. Leaflets 



4, lanceolate, ■ Labrons, Flowers in long spikes, 6 — 9-flowered, alternate ; 

 bracta ovate, 5-n< rved ; u] ■ nts of the calyx 1 road, emargi- 



nate ; all the aegmentfl abate ; vexillum broad, reniform ; wings 

 broadly oVi Lam; keel short Legume 2 — i- 



jointed, joints nearly round. — Yellow. U. July. Sandy lands. 1 — 

 2 feet long. 



