LEGUMINOS^E. " 81 



lar-campanulate, glabrous, much longer than the lanceolate bracts | 

 teeth nearly equal ; legume torulose. 



HAB. Banks of streams. Penn. to Car. July, Aug. If. 

 Stem climbing, sometimes erect. Flowers large, pale blue. 



2. C. mrginiana Linn. : stem twining, and with the ovate leafets 



glabrous or subpubescent ; peduncle 1 4-flowered ; calyx 5-parted, 



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



HAB. Hedges, Penn. to Car. Aug. If. Flowers purple or 



violet, larger than that of any of our North American Papilio- 



naceae. De Candolle describes three varieties of this species, 



which differ only in the shape of the leaves. Butterfly Weed. 



8. GALACTIA, Mich. 



Calyx bibractiate, 4-cleft ; segments acute, nearly equal. 

 Carol papilionaceous ; petals 5, oblong, distinct. Standard 

 incumbent, broader than the others. Stamens diadelphous. 

 Style smooth. Stigma obtuse. Legume terete or compress- 

 ed, many-seeded, bivalved, 1-celled, elongated. 



Diadelphia. Decandria. 



1. G. mollis Mich. : stem twining, softly- villous ; leaves ternate ; 

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

 longer than the leaves, pedunculate ; flowers pedicelled ; calyx acumi- 

 nate, villous ; legume compressed, villous. Hedysarum volubile Linn. 



HAB. Pine barrens. N. J. to Car. July, Aug. If. Stem pros- 

 trate or climbing. Flowers small, purple. 



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

 leaves ternate ; leafets eliptic-oblong, obtuse, emarginate at each end, 

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

 long as the leaves ; calyx smooth; legumes pubescent, (smooth, Nutt.) 

 Ervum volubile Walt. 



HAB. Pine barrens. N. J. to Car. Aug. If. Flowers reddish- 

 purple, large. Root fusiform. 



9. TEPHROSIA. Pers. 



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

 of the corol large, roundish, pubescent or sericeous without, 

 reflexed-spreading ;.ioings adhering to the obtuse keel. Sta- 

 mens none or diadelphous. Legume compressed-flat, linear, 

 many-seeded. Seeds compressed. Diadelphia. Decandria. 



T. mrginiana Pers. : erect ; leafets 8 12 pairs, oval-oblong, mucfon- 

 ate, white villous beneath ; raceme terminal, subsessile ; legumes fal- 

 cate villous. Galega mrginiana Linn. 



HAB. Barrens. Can. and throughout the U. S. July. Zf. 

 Stem a foot high. Flowers varied with red, yellow and white. 



Goafs Rue. 



