76 DICOTYLEDONOUS PLANTS. 



surface ; petiole winged, appearing as if jointed ; flowers in sessile 

 panicles, dioecious. 



HAB. Dry fields. N. Y. to Car. July. T>. A small shrub. 

 with yellowish-green > /Z0ier5. Fruit red, small, compressed, hairy. 



Mountain ^uinnrli. 



G. R. vcncnata De Cand. : branches, leaves and petioles very smooth; 

 leafets in 5 6 pairs, oblong-oval, abruptly accuminate, nearly entire ; 

 petioles without joints or wings ; flowers in loose slender panicles, di- 

 oecious ; fruit smooth, white. R. xernix Linn. 



HAB. Margins of swamps. N. Y. to Geor. June, July. *?. 

 Shrub 6 12 feet high. FUncers greenish. Poisonous. Big. 

 Mcd. Bot. i. 96. Poison Ash. 



* * * Leaves pinnate, pubescent. 



7. R. typhina Linn. .- branches and petioles very villous ; leafets in 

 many pairs, lanceolate-oblong, acuminate, acutely serrate, pubescent 

 beneath ; flowers in oblong dense panicles, dioecious. 



HAB. Rocky hills. Can. to Car. June, f?. Shrub 1015 

 feet high. Flowers greenish-yellow. Fruit in clusters, covered 

 with a purple velvety down. Stag's Horn. 



ORDER XXXV. LEGUMINOS^. De Cand. Jjind. 



Calyx 5-parted, toolhed or cleft, inferior, with the odd seg- 

 ment anterior ; the segments often unequal and variously 

 combined. Petals 5, or by abortion 4, 3, 2, 1 , or none, in- 

 serted into the base of the calyx, either papilionaceous or re- 

 gularly spreading ; the odd petal posterior. Stamens definite 

 or indefinite, perigynous, either distinct or monadelphous, or 

 diadelphous ; very seldom triadelphous ; anthers versatile. 

 Ovary simple, superior, 1-celled, 1 or many-seeded; style 

 simple, proceeding from the upper margin ; stigma simple. 

 Fruit either a legume or a drupe. Seeds attached to the up- 

 per suture, solitary or several, occasionally with an arillus ; 

 embryo destitute of albumcri, either straight, or with a radicle 

 bent upon the cotyledons ; cotyledons either remaining under 

 ground in germination, or elevated above the ground and be- 

 coming green like the leaves. 



Herbs, shrubs or trees. Leaves with usually 2 stipules at 

 the base. 



SUBORDER I. PAPILIONACEJE. 



Calyx with distinct lobes. Stamens periginous. Coral 

 papilionaceous. 



