362 POWDERED VEGETABLE DRUGS 



103. (Fig. 108.) GRINDELIA. Grindelia. U. S. 

 Fl. ex. 30. 



Grindelie, G. Grindelie, Fr. 



The leaves and flowering tops of Grindelia camporum G. and G. 

 cuneifolia Nutt., Composite. 



Pale yellowish brown. 



Somewhat fragrant, camphoraceous. 



Bitter, somewhat pungent; very sticky (resin). 



Vertical walls of upper and lower epidermal cells somewhat wavy; 

 stomata on both surfaces. Rigid, many celled simple trichomes and 

 some depressed sessile, many celled glandular trichomes. Prismatic 

 and aggregate crystals of calcium oxalate. Some pollen grains typical 

 of the order compositae. 



Ash 6 per cent. 



Various related plants substituted for the above. Compare the 

 two official species. The above description refers to the G. camporum. 



