DECANDRIA. MONOGYNIA. £83 



lary branches after flowering. Lower stipules roundish 

 and nearly as lar^e as the leaves, common petiole nearly 

 an inch long-, exceeding the stipules in leng-th; leaves 

 about an inch long, and 1-2 an inch wide, scarcely obtuse, 

 slenderly villous on the under side, smooth above, raceme 

 subsessile, short and terminal, 3 or 4 inclies long-, few 

 flowered; pedicells subvertlcillately aggregated; flowers 

 yellow,! stamina deciduous, at least in the fruit, the car- 

 tilaginous cupulate torus alone persistent. Legume com- 

 })ressed, falcate, about 3 inches in length, here and there 

 interrupted by abortive portions, but not articulated or 

 intercepted, terminated by the persistent filiform style, 

 with a minute and smooth stigma. — Hab. On denudated 

 argillaceous hills near Fort Mandan. This plant is very 

 closely allied to Sophora lupinoides of Pallas, J'hermopsis 

 lanceolata of Brown, and they appear inseparable in ge- 

 nus, that species wlienin perfection produces a longver- 

 ticillated spike of flowers; some of Pallas's specimens, 

 however, in the herbarium of A. B. Lannbert, Esq. have 

 a single verticill of flowers only as in the starved speci- 

 men figured in the Botanical Magazine, in this species 

 the leaves are on both sides closely covered with a silky 

 villous; the primary leaves it appears occur sometimes 

 simple but always accompanied by the stipules after the 

 manner of Baptisia. 



402. CERCIS. i. (Judas-tree, Red-bud.) 

 Calix 5 -toothed, the lower part gibbous. 



Corolla papilionaceous, lateral petals or wings 

 larger than the vexillum; carina dipetalous. 

 Legume compressed. *< Seminiferous suture 

 marginated. Seeds obovate." — Brown. 



Small trees with simple orbicularly cordate leaves; flow- 

 ers disposed in clusters upon the trunk and branches, 

 purple, appearing before the leaves. 



Species. 1. C canadensis.— Oi this genus there is 

 another species indigenous to the south of Europe. 



403. VIRGILIA. Lamark. Per soon, R, Brown, 

 Calix 5-cleft. Corolla papilionaceous, petals 



nearly equal in lengthy sides of the vexillum not 



t This plant is noticed in the travels of Lewis and Clarke, as 

 flowering early, and attracted attention soon after they left the 

 Mandans in the spring. 



