POLYPETALOUS EXOGENOUS PLANTS. 239 



trifoliolate leaves, and mostly small purplish or vf\\\iQ flowers 

 in axillary racemes ; bracts alternate and deciduous ; leaflets 

 stipellate. 



* Leaves trifoliolate, vAth the leaflets stalked ; stems twining or prostrate. 



G. MOLLIS, Michx. Villous and somewhat hoary ; stems 

 mostly prostrate and simple ; leaflets oval or oblong, obtuse 

 or emarginate at both ends or the upper ones acute; 

 racemes single, about twice the length of the leaves, the 

 short-pediceled flowers approximate near the summit of 

 the stout peduncle, acute in bud ; calyx like the straight 

 10-seeded compressed legume, very villous and hoary. Stem 

 2°-3°long; leaflets I'long; corolla reddish purple, one- 

 third longer than the acute calyx-lobes. 



G. Floridana, Torr. and Gray. Hoary pubescent ; ste^n 

 prostrate ; leaflets oval or oblong, rarely acute, reticulate ; 

 racemes simple or branched, often by pairs, many-flowered, 

 rarely longer than the leaves ; floiuers large, approximate ; 

 legume flat, 10-seeded ; leaflets acute or emarginate, the few 

 flowers almost sessile in axillary clusters. Stem 2°-4° long ; 

 leaflets 1-2' long ; flowers largest of all. 



G. GLABELLA, Miclix. Stems prostrate, minutely pubes- 

 cent ; leaflets rather rigid, on short petioles, oblong, rarely 

 acute, smooth and shining above, slightly hairy beneath ; 

 racemes seldom as long as the leaves, 3-6-flowered; style 

 elongated; legume slightly falcate, at length smoothish, 

 4-6-seeded. Stems 2°-3° long ; leaflets 1' long ; flowers 

 large, reddish purple. 



DOLICHOS, L. 



Calyx campanulate, somewhat 2-lipped, the upper lip of 

 two more or less united teeth, the lower 3-cleft ; vexillum 

 callous near the base ; keel more or less falcate ; stamens 

 diadelphous, the free stamen spurred at the base ; style 

 bearded ; legume flattened ; seeds compressed, with a small 



