ANACARDIACEZ. SILVA OF NORTH AMERICA. 
CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. 
Merorium. Flowers in axillary panicles; drupe obovate, glabrous; leaves unequally pinnate. 
(Poisonous. ) 
Leaves pinnate or often trifoliate. . 2. 2. 1 1 1 1 ww eee ee ew ew ee 61 RR. Me TOPIOM. 
Sumac. Flowers in terminal thyrsoidal panicles; fruit globular, clothed with acrid hairs; 
leaves unequally pinnate. 
Branches and leaf-stalks densely velvety-hairy ; leaflets 11 to 31, pale on the lower sur- 
face; fruit covered with long hairs . . . . . . 1 6 6 s+ © « © «© © & Re TYPHINA. 
Branches and leaf-stalks pubescent ; petioles winged ; leaflets 9 to 21, green on the lower 
surface; fruit pilose . 2. 2 2. 6 © © © © © © we ww ew we ww ee he he 68 RR. COPALLINA. 
ToOxICODENDRON. Flowers in slender axillary panicles; fruit glabrous, white; leaves unequally 
pinnate or trifoliate. (Poisonous.) 
Leaves pinnate, seven to thirteen-foliolate . . . . - + © © © © «© © «© « © + 4 BR. VERN. 
SrypHonta. Flowers in terminal panicles; pedicels conspicuously bracted; fruit pubescent ; 
leaves usually simple, persistent. 
Flowers in short compact panicled racemes; leaves ovate, entire or serrate, simple or 
rarely trifoliate. 2 1. 6 1 6 1 ee ee ee ee ew we ee ee «OR. INTEGRIFOLIA. 
