186 POWDERED VEGETABLE DRUGS 



4. (Fig. 4.) ACONITUM. Aconite. Leaves. 

 Fl. ex. 30. Tinct. 40. 



Monkshood, Wolfsbane, E. Eisenhut, Sturmhut, G. Coqueluchon, 

 Fr. 



The leaves of Aconitum napellus L., Ranunculaceae. 



Rather dull green. 



Nearly odorless, faintly fragrant. 



Bitter, pungent, producing a benumbing effect. 



Epidermal cells (upper and lower) tabular with wavy vertical 

 walls; stomata on lower surface only; upper cells larger and vertical 

 walls less wavy; trichomes simple, single celled with warty markings. 

 Few comparatively thin walled, nearly colorless, very porous, stone 

 cells. Pollen grains oval. 



Ash should not exceed 17 per cent. 



Occasionally adulterated with the leaves of .related species, and 

 the leaves of Delphinium. 



