77 



Sandy soil. N. Y. to Flor. and Ala. July, Aug. 2J.. Stem 2 or more feet 

 long, climbing, sometimes erect. Flowers large, pale blue, usually 1 2 on the 

 peduncles. Maryland Clitoria. 



2. C. Virginiana Linn. : stem twining, and with the ovate leafets gla- 

 brous or subpubescent ; peduncle 1 i-flowered ; calyx 5-parted, about as 

 long as the lanceolate bracts ; legume linear, compressed. Centrosema 

 Virginiana Benth. Torr. <$ Gr. 



Dry soils. Penn. to Flor. Aug. 7}.. Flowers purple or violet, larger than 

 that of any of our North American Papilionaceae. De Candolle describes three 

 varieties of this species, which differ only in the shape of the leaves. 



Butterfly Weed. 



8. GALACTIA. Browne. Milk Pea. 

 (.From the Greek yaXn, milk ; some of the species yielding a milky juice.) 



Calyx bibracteate, 4-cleft ; segments acute, of nearly equal 

 length ; the upper one broadest. Standard incumbent, broad. 

 Keel petals slightly cohering towards the apex. Legume com- 

 pressed, linear, many-seeded. 



1. G. mollisMich.: stem twining, softly villous ; leaves ternate; leafets 

 ovate-oblong, obtuse, pale beneath ; racemes axillary, a little longer than 

 the leaves, pedunculate ; flowers pedicelled ; calyx acuminate, villous ; 

 legume compressed, villous. 



Pine barrens. N. J. to Flor. July, Aug. %. Stem prostrate or climbing. 

 Flowers reddish-purple, about half as large as the next. Soft Milk Pea. 



2. G. glabella Mich. : stem prostrate, somewhat twining, smooth ; leaves 

 ternate; leafets elliptic-oblong, obtuse, emarginate at each end, shining 

 above ; racemes axillary, simple, few-flowered, on peduncles as long as the 

 leaves ; calyx smooth ; legume pubescent. 



Sandy soils. N. Y. to Flor. Aug. ^.Root fusiform. Stem Z-4 feet long, 

 spreading on the ground or twining. Flowers reddish-purple and white, large 

 and handsome. Smooth Milk Pea. 



9. TEPHROSIA. Pers. Tephrosia. 

 (From the Greek Tempos, ash-colored ; in allusion to the color of the foliage.) 



Calyx without bracts, nearly equal, 5 -toothed. Standard of 

 the corolla large, roundish, pubescent or sericeous without, re- 

 flexed-spreading ; wings adhering to the obtuse keel. Stamens 

 monadelphous, or diadelphous. Legume compressed-flat, linear, 

 many-seeded. 



T. Virginiana Pers. : villous pubescent ; stem erect ; leafets 8 14 pairs, 

 oval or linear-oblong, in ucronate, white villous beneath; raceme terminal, 

 subsessile ; segments of the calyx very villous, acuminate-cuspidate ; le- 

 gume falcate, villous. Galega Virginiana Linn. 



Sandy soil. Can. to Flor. W. to Miss. June, July. 1\-. Root long and 

 tough. Stem about a foot high, usually several from one root. Flowers in a 

 dense terminal raceme, showy, yellow, tinged with purple. Goal's Rue. 



