282 ORDER XLIII. — LEGUMINOS^. 



Genl's XXIV.— psora 'LEA. L. 16—10. 

 (From the Greek psoraleos, scurfy ; the appearance of the calyx.) 



Calyx campauulate, o-toothed, sprinkled with glandular dots, 

 lower segments a little the longest. Stamens diadelphons. 

 Legume indehiscent, 1-seeded, slightly beaked, as long as the 

 calyx. 



1. P. CANEs'cENS, (Midi.) Root tuberous. Stem branching, canescent- 

 ly pubescent. Leaves entire, simple above and trifoliate below, broad 

 obovate-lanceolate, dotted. Stipules subulate. Peduncles axillary, 

 4 — 7-flowered. Calyx inflated, glandular, brownish. Legume short, 

 glandular. — Yellowish. If, May — July. Middle Car. and Geo. Com- 

 mon. 2 — 3 feet. 



2. P. LuPiNELLUs, (Mich.) Steyn somewhat branched, slender, gla- 

 brous. Leaves digitate on long petioles. Leaflets filiform, 5 — 7-foliate. 

 Racemes longer than the leaves, many-flowered. Peduncles thick. Ca- 

 lyx small, glandular, the lower segment longest. Corolla much longer 

 th.in the calyx, with a sub-oibicular vexillum, small, with a recurved 

 point, rugose. — Pale violet. If. May — July. SanJ-hiils of miadle 

 Geoi'gia. 2—3 feet. 



3. P. virga'ta, (Xutt.) Stem virgate, somewhat branched, slightly 

 pubescent. Leaves simple, lineardanceolate, remote, with setaceous stip- 

 ules. Flowers in cylindrical spikes. Spikes axillary, not as long as the 

 leaves. Bracts oblong, calyx dotted with glands, lower si gment a little 

 the longest. Corolla but little longer than the cdyx. Legume 1-seed- 

 ed. — Pale violet. If, Near St. Mary's, Geo. 2 feet. 



4. P, melilotoi'des, (Mich.) Stem diff^use, slightly pubescent, branch- 

 ing. Leaves ternate. Leapts obloug-laiK-eolate, dotted witli glands. 

 Flowers mo\Aow^ spikes, with broad, conspicuous, colored, caducous brac- 

 teas. Spikes axillary and terminal. Calyx hairy, purpli>h, glandular. 

 Keel .small. L^egume mucronate, oval, rugose, 1-seeded — l^ui]de. If. 

 May — June. Very common in middle and upper Carolina and Geor- 

 gia. 2 feet, 



5. P, EGLANUULo'sA. (Ell.) Stem pubescent. Leaves trifoliate, leaflets 

 oblong-lanceolate. Flowers in oblong spikes. Bracts broad, lanceolate, 

 acuminate. Calyx very villous. Legume nearly orbicular, with trans- 

 verse wrinkles. Very similar to the preceding. — Purple, 2f . May — ■ 

 June, Dry soils, 1 — 2 feet. 



6. P. multiju'ga, (Ell.) Stem thick, glabrous, furrowed. Leaves pin- 

 nate, irreguhir, 9 — 10 pairs. Leaflets oblong-lanceolate, hairy on the 

 under surface, sometimes pubescent on the upper. Flowers in oblong 

 spikes. Bracts small. Calyx with very long teeth, villous on the mar- 

 gm. Legume \-?,eede(i. — Violet. 2f. "May — June. Middle and upper 

 country. We found it near Greenville, S. Car. 10 — 20 inches. 



Genus XXV.— AMOPv'PHA. L. 16—10, 

 (I'rom a, priv,, and onorphe, form, in allusion to the irregular form of the corolla.) 



Calyx carapanulate, 5-cleft, persistent. Vexillum ovate, con- 

 cave, unguictilate ; wings and keel wanting. Stamens mona- 

 delphous. Style filiform. Legume falcate, rough or tubercu- 



