Class XVII. Order IV. 173 



rounded in front, and hollowed out at top, their two posterior 

 angles very acute, the anterior obtuse. On the Concord turn- 

 pike, near Fresh Pond. July, August. 



HEDYSARUM CANADENSE. L. Canadian Hedysarum. 



Leaves ternate, oblong-lanceolate ; stipules fili- 

 form ; flowers racemed ; joints of the loment ob- 

 tusely triangular, hispid. Willd. 



A tall, handsome species, flowering in July. Stem erect, 

 striate, hairy. Leaves ternate. Leafets long and narrow, 

 broadest at base, gradually tapering to the point, which is not 

 very acute. Racemes from the top of the stem and axils of the 

 upper leaves. Pods hairy, consisting of four or five joints, 

 which are imperfectly triangular, their sides curved, and their 

 angles obtuse. Woods. Perennial. 



212. GLYCINE. 

 GLYCINE MONOICA. L. Pea vine. 



Leaves ternate, naked ; stems hairy ; fertile 

 flowers without petals. L. 



A very delicate wood vine, twining upon the bushes, and 

 flowering in July and August. Stem slender, covered with 

 minute hairs pointing backward. Leaves in threes, ovate, 

 acute, smooth, and very thin. Flowers monoecious, the barren 

 ones in small, axillary, pendulous racemes, with the calyx and 

 corolla nearly white. Legumes short, flattish, pointed. Annu- 

 al. 



GLYCINE APIOS. L, Tuberous Glycine. Ground nul. 



Leaves pinnate, with seven ovate-lanceolate 

 leafets ; racemes shorter than the leaves 5 stem her- 

 jbaceous, twining. Willd. 



Not unfrequent in moist woods and thickets. Root tuber- 



