44 COMMON CANADIAN WILD PLANTS. 



stamens, each. 5. Fruit a 1-seeded drupelet. The petals 

 and stamens inserted under the edge of a disk which, sur- 

 rounds the base of the ovary. The only genus is 



Kill's, L. SUMACH. 



1. R. typh'ina, L. (STAGHORN SUMACH.) A small tree, 

 10-30 feet high, with densely soft-hairy branches and stalks. 

 Flowers greenish- white, polygamous, forming a terminal 

 thyrse. Fruit globular, covered with crimson hairs. Leaves 

 pinnate, leaflets 11-31. oblong, lanceolate, serrate, pointed. 

 Dry hill-sides. 



2. R. glabra, L., (SMOOTH S.) is smooth, and seldom ex- 

 ceeds 5 feet in height. 



3. R, Toxieoden'dron, L. (POISON IVY. POISON OAK.) 

 Shrub about a foot high, smooth, often climbing by rootlets. 

 Leaves 3-foliolate, leaflets rhombic-ovate, notched irregu- 

 larly. Flowers polygamous, in slender axillary panicles. 

 Plant poisonous to the touch. Var. radi'eans, L., has the 

 leaves entire, and climbs high. 



4. R. venena'ta, DC. (POISON ELDER.) A tall shrub, 

 smooth or nearly so. Leaves odd-pinnate ; leaflets 7-13, 

 obovate-oblong, entire. Greenish-white flowers as in No. 3. 

 Swamps. 



5. R. Canadensis, Marsh. (FRAGRANT S.) (R. aromat- 

 ica, Ait.) A shrub 2-3 feet high, or more, with 3-foliolate 

 leaves, sweet-scented when crushed, and catkin-like spikes 

 of pale yellow flowers appearing before the leaves. Dry 

 rocky banks. Var. triloba'ta, with small leaflets and an 

 unpleasant odour, is rather common in the North- West. 



ORDER XXVI. VITA'CE^. (VINE FAMILY.) 



Shrubs climbing by tendrils, with small greenish flowers 

 in panic!ed clusters opposite the leaves. Stamens as many 

 as the petals and opposite them. Calyx minute. Petals 4 

 or 5, hypogynous or perigynous, very deciduous. Fruit a 

 berry, 1-4-seeded. Leaves palmately-veined, or compound 



