S"-' ImKI.I) ^^ANlTA[. 



and of sli^lit value. Along streams. Planted on the prairies 

 for small groves and wind breaks. Maine to Man.. Fla., Kan. 

 and Mex. 



Auacaniiaccac. Sumac I'amily. 



42. Rhus (Tourn.) L. Sumac. 



Small trees or shrubs witli alternate iiinnatel\- comi)ound 

 lea\-es, with sticky milky or resinous sap, and pubescent 

 drui)es. 



bliuvers in i)anicles. imperfectly liisporangiate, small; 

 stametis ti\e, styles three: drupe red. 



Petioles not completely covering the axillary buds; 



leaflets entire; rachis of the leaf wing-margined; 



leaflets ~-'M ; twigs and the red drupes pubescent. 



R. copallina. 

 Petioles covering the axillary buds ; leaflets serrate. 1. 

 Leaves and twigs velvety-pubescent. R. hirta. 

 Leaves and twigs glabrous, somewhat glaucous. R. 



(/labra. 



1. Rhus copallina L. Mountain Sumac. A shrub or 

 small tree with a dense terminal panicle of small globose, 

 crimson drupes, covered with short acid hairs. Leaves used 

 for tanning ])ur])i)ses. Wood soft and light brown. In dry 

 >nil. Mc. and Out. to b'la.. Minn.. Neb. and Tex. 



2. Rhus hirta ( L. ) Sudw. Stagliorn Sumac. .\ >mall 

 iree or shrul) with red, pubescent drupes. Wood very soft 

 and lirittle. In dry or rocky soil. A good lemonade or 

 "sumacade" is made by steeping the drupes and sweetening 

 to taste. Leaves used for tanning. Wood soft, greenish- 

 yell; w. X. S. to Ga., Out., S. Dak., Mo. and Iowa. 



■ '). Rhus glabra L. Smooth Sumac. A shrub or small 

 tree with dense panicles of small crimson drupes covered with 

 short acid hairs. Noted for its beautiful, brilliant, red-colored 

 leaves in autumn. Leaves used for tanning. Common on hill- 

 sides and bhifTs. X. S. to Minn., Fla.. Miss, and La 



