486 POWDERED VEGETABLE DRUGS 



181. (Fig. 173.) SCOPOLA. Scopolia. 

 Fl. ex. 60. Tinct. 60. 



The rhizomes of Scopola (Scopolia) carniolica, Solanacese. 



Light grayish brown. 



Nearly odorless. 



Sweetish, bitterish, somewhat pungent. 



Histologically scopola is closely similar to belladonna root. Ducts 

 of scopola are more typically reticulate and starch granules are some- 

 what smaller but otherwise closely similar. There is a layer of distinct, 

 rather thick-walled brown, polygonal epidermal cells; no cork. Paren- 

 chyma cells large, loosely united; some with reddish brown resin and 

 many with crystal sand. Some starch granules polygonal, and some 

 in aggregates of five to seven. 



Compare with belladonna. May be adulterated with Scopola 

 japonica, S. lurida, and roots of other plants. 



