Class XVII. Order IV. 277 



asd very thin. Flowers in small, axillary, pendulous racemes, 

 with the calyx and corolla nearly white. Legumes short, Cat- 

 tish, pointed. Annual. 



GLYCINE APIOS. L. Tuberous Glycine. Ground JVutt. 



Leaves pinnate, with seven ovate-lanceolate leafets ; 

 racemes shorter than the leaves ; stem herbaceous, 

 twining. Wild. 



Syn. Jlpios TUBEROSA. Pursh. 



Not unfrequent in moist woods and thickets. Root tuberous, 

 consisting of fleshy oval knobs, tapering at the ends, arranged at 

 certain distances , like beads, on a principal running root. Stems 

 round, twining. Leaves pinnate, consisting of live or seven 

 ovate, acuminate, smooth leafets. Flowers in axillary racemes, 

 blackish purple, crowded, and not inelegant in their appearance. 

 July, August. Perennial. 



295. ROBINIA. 



ROBINIA PSEUDACACIA. L. Locust Tree. 



Leases pinnate with one odd leafet ; stipules prick- 

 ly ; racemes pendulous ; calyx-teeth unarmed ; le- 

 gumes smooth. 



Leaves pinnate, smooth, Leafets numerous on short petioles, 

 oblong-oval, minutely mucronated, smooth both sides. Stipules 

 of the leafets minute, linear, passing in front of the petioles. 

 Flowers in long, pendulous racemes. Calyx ventricose, green 

 and purple, four toothed or cleft, the upper segment notched. 

 Corolla white. Sides of the banner reflexed. Keel of two dis- 

 tinct, cohering petals. Legume broad and flat, with a few kid- 

 ney shaped seeds. I have observed that in this species, together 

 with R. viscosa and R. hispida, the keel of the flower consists of 

 two distinct petals, inserted by separate claws, slightly cohering 

 at tip and sometimes on a part of their under side ; as takes 

 place in Ulex, Spartium, &c. 



The Locust tree, exceedingly value*! for the hardness and du- 

 rability of its timber, is not, 1 believe, found native in the New- 

 England states, though abundantly naturalized near habitations 

 and roads. June. 



