216 POWDERED VEGETABLE DRUGS 



15. (Fig. 35.) APOCYNUM. Apocynum. 

 Fl. ex. 60. 



Canadian hemp, E. Canadische Hanfwurzel, G. Chanvre du 

 Canada, Fr. 



The roots of Apocynum canndbinum L., Apocynaceae. 



Light grayish brown. 



Faint soil odor (musty) narcotic. 



Very bitter. 



Parenchyma cells medium size with simple elliptical starch gran- 

 ules from 3 to 12ju in long diameter; large and small porous ducts; cork 

 tissue sparingly present. A few sclerenchyma cells are present, like 

 those of A. Androsaemifolium. 



Ash 11 per cent. 



Canadian hemp and dog's bane are variously substituted for each 

 other. Not generally adulterated. 



