LEGUMINOS^J. 93 



C. bracteata Raf. De Cand. 



HAB. Banks of the Susquehannah. Penn. Raf. Plant twining. 

 Leaves unequally pinnate ; leafcls sessile, oblong, mucronate. 

 Peduncles longer than the leaves, somewhat spiked ; bracts sca- 

 riose, subulate, persistent, ciliate ; flowers white. This genus 

 is said by De Candolle to be allied to Galega and Colutea, but 

 differs from them as well as from Teprosia, by its 2-seeded legume. 



SUBORDER II. C^ES ALPINES. 



Petals imbricated in aestivation. Stamens periginous, 

 mostly free. 



27. GLEDITSCHIA. Linn. 



Flowers by abortion imperfect, or perfect. Sepals 34-5, 

 equal. Petals as many as the sepals, arising from the tube 

 of the calyx. Stamens as many as the sepals and opposite to 

 them, or by abortion fewer. Style short. Stigma pubescent 

 above. Legume compressed, 1 or many-seeded. Seeds com- 

 pressed. Dioecia. Hexandria. 



G. triacanthos Linn. : branches spiny ; spines thick, simple or triple 

 and compound, leaves equally pinnate ; leafets linear-oblong ; legume 

 compressed-flat, falcate, many-seeded.. G. triacanilios and brachy- 

 cai-pa Pursh. 



HAB. Woods. N. J. to Car. W. to Miss. A tree sometimes 

 attaining the height of 40 or 50 feet, with very long spines. 

 Flowers in axillary racemes. Legume 10 12 inches long, many- 

 seeded, the intervals between the cells of the seeds filled with a 

 saccharine pulp. The tree is sometimes unarmed, when it forms 

 the var. inermis of De Candolle. Honey Locust. 



28. GYMNOCLADUS. Lam. 



Flowers by abortion dioecious. Calyx tubular, 5-cleft. 

 Petals 5, equal, oblong, exserted from the tube. Stamens 10, 

 included. Legume oblong, thick, pulpy within. 



Dioecia. Decandria. 



G. canadensis Mich. . ' 



HAB. Can. N. Y. S. W. to Arkansa. May, June. A middle 

 sized tree. Leaves very large, bipinnate ; leafets oval, acumi- 

 nate, pubescent. Floicers white, in racemes. Legume large, 

 dark brown. Coffee Tree. 



29. CASSIA. Linn. 



Sepals 5, scarcely united at base, somewhat unequal. 

 Petals 5, unequal. Stamens 10, free, unequal ; 3 lower ones 

 longer ; 4 middle ones short and straight ; 3 upper ones with 

 abortive anthers. Anthers dehiscent at the apex. 



Ihcandria. Monogynia. 



