KEY TO GENERA AND SPECIES 121 



SUMACH. Leaves alternate, pinnately compound 

 (except in the Smoke Tree). Juice sticky 

 as it dries, commonly milky-white when 

 fresh. Fruit globular, less than \ of an 



Fig. 228. Clammy Locust. Fig. 229. Common Locust. 



inch thick. Usually shrubs, the following 



occasionally small trees. 

 182. Leaves simple. Cult. Native in Eurasia. 



(Fig. 23 1 .) Smoke Tree, Venetian Sumach, 



Rhus Cotinus L. 

 182. Leaves compound 183. 



183. Leaflets toothed 184. 

 183. Leaflets not toothed 185. 



