; | 
Fic. 465.—Arctium minus or Com- 
: mon Burdock, a source of the drug 
Lappa or Burdock Root. (Reproduced 
from U.S. Dept. Agric. Miscel. Pub. 77.) 
Fic. 467.—Brauneria angustifolia, 
or Narrow-leaved Purple Cone-flower. 
(Reproduced from U. S. Dept. Asgric. 
Miscel. Publ. 77.) 
612 PHARMACEUTICAL BOTANY 
Fic. 466.—Grindelia squarrosa or 
Gum Plant, a native of the Plains and 
Prairies from Saskatchewan to Mexico. 
(Reproduced from U. S. Dept. Agric. 
Miscel. Publ. 77.) 
Fic. 468.—Tussilago Farfara or 
Coltsfoot. (Reproduced from U. S. 
Dept. Agric. Miscel. Publ. 77.) 
