466 POWDERED VEGETABLE DRUGS 



167. (Fig. 163.) RHUS GLABRA. Sumach. 

 Fl. ex. 30. 



Sumach, E., G. Sumac, Fr. 



The fruit of Rhus glabra L., Anacardiacese. 



Rather dark reddish brown. 



Odorless. 



Acid taste. 



Epidermis of pericarp consists of thin-walled polygonal cells with 

 red brown contents. Numerous bright red club shaped trichomes, 

 some of a single row of cells, other many rows; also simple, slender, 

 pointed, single-celled, colorless, thick-walled trichomes. Outer layer 

 of seed coat of vertically elongated, thick-walled, irregular, colorless 

 cells. Sclerenchymatous, porous cells. Endosperm cells thin-walled, 

 polygonal with granular contents. 



