282 ORDER XLIII. LEGUMINOSJ3. 



Genus XXIV.— PSORA'LEA. L. 16—10. 

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



Calyx campanulate, 5-toothed, sprinkled with glandular dots, 

 lower segments a little the longest. Stamens diadelphous. 

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



calyx. 



1. P. caxes'cens, (Mich.) 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. 1(. May — July. Middle Car. and Geo. Com- 

 mon. 2 — 3 feet. 



2. P. Lupinel'lus, (Mich.) Stem 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 

 than the calyx, with a sub-orbicular vexillum, small, with a recurved 

 point, rugose. — Pale violet. 2T.. May — July. Sand-hills of middle 

 Georgia. 2 — 3 feet. 



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

 pubescent. Leaves simple, linear-lanceolate, remote, with setaceous stip- 

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

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

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

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



4. P. melilotoi'des, (Mich.) Stem diffuse, slightly pubescent, branch- 

 ing. Leaves ternate. Leaflets oblong-lanceolate, dotted with glands. 

 Flowers in oblong spikes, with broad, conspicuous, colored, caducous brac- 

 tt as. Spikes axillary and terminal. Calyx hairy, purplish, glandular. 

 Keel small. Legume mucronate, oval, rugose, 1-seeded. — Purple. If. 

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

 gia. 2 feet. 



5. P. eglaxduxo'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. %. May — 

 June. Dry soils. 1 — 2 feet. 



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

 Date, irregular, 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- 

 gin. Legunu L-seeded. — Violet U. May — June. Middle and upper 

 country. We found it near Greenville, s. Oar. 10 — 20 inches. 



Genus XXV.— AMOR'PHA. L. 16—10. 



(From a, priv., and morphe, form, in allusion to the irregular form of the corolla.) 



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

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

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



