ORDER XLIIT. — LEGTJMINOS.E. 275 



Genus V1L— DO'LTCHOS. L. 16—10. 

 (From the Greek dolichos, long, from the length of the vines.) 



Calyx bilabiate, the upper lip generally 2-cleft, seldom en- 

 tire ; lower lip 3-cleft or 3-toothed. Vexillum with 2 — 4 callos- 

 ities near the base of the limb. Styles cylindric. Legume com- 

 pressed, few-seeded. Seeds oval, compressed. Hilum oval. 



1. D. multiflo'hus, (T. <fe G.) Stem retrorsely pubescent, twining. 

 Leaves ternate, large ; leaflets nearly orbicular, abruptly acuminate, 

 pubescent when young, nearly glabrous when old. Flowers numerous 

 in elongated racemes, peduncles axillary, pedicels fasciculate, upper lip 

 of the calyx generally entire, middle division of the lower lip longest, 

 lanceolate, lateral ones short. Legume compressed, obtuse, 4-seeded. 

 Seed oval, separated by partitions. — Purple. 11. June — July. On the 

 banks of the Oconee and Ocmulgee. 6 — 12 feet. 



Genus VIII. — ERYTHRI'XA. L. 16—10. 

 (From the Greek eruthros, red ; the color of the flowers.) 



Calyx cylindrical, truncate or bilabiate, 2-lobed. Corolla 

 with a very long, lanceolate vexillum, destitute of callosities ; 

 wings and keel small. Stamens unequal, straight, usually dia- 

 delphous, as long as the vexillum. Style straight, glabrous. 

 Legume torulose, stipitate, many-seeded, compressed between 

 the seeds. Herbaceous plants, with trifoliate leaves. 



1. E. herba'cea, (L.) Stems glabrous, arising from a eormus, some 

 what prickly. Leaves trifoliate, leaflets glabrous, rhomboid al, sometimes 

 almost hastately lobed. Flowers in terminal spikes, very long. Sta- 

 mens monadelphous at the base, diadelphous above. Seeds bright scar- 

 let. — Scarlet. 2f. March — May. In rich soils. Mid. Geo. 2 — 4 ft. 



Genus IX.— A'PIOS. Boer. 16—10. 

 (From apion, a pear ; the shape of the tubers.) 



Calyx somewhat bilabiate, the upper lip with 2 short round- 

 ed teeth, the lower with 3 teeth, the middle tooth lanceolate, 

 subulate, the lateral ones very minute. Vexillum reflected ; 

 keel falcate. Legume coriaceous many-seeded, slightly falcate, 

 nearly terete. 



1. A. tubf.ro'sa, (Moen.) Root tuberous. Stem climbing, covering 

 small shrubs with its foliage, slightly pubescent. Leaves unequally pin 

 Late, 5 — 7 leaflets, ovate-lanceolate, acute, sprinkled with hairs. Ra- 

 axillary, many-flowered. Calyx with the upper lip usually trun- 

 cate, lower one with 1 lanceolate tooth, the lateral ones very small or 

 none. Seeds reniform. — Brown. If. July — Aug. Damp rich soils. 

 Common. 



Genus X.— WISTA'PJA. Xutt. 16—10. 

 (In honor of Dr. Wi° f ar, of Penn.) 



Calyx campanulate, bilabiate, the upper lip truncate, the 



