254 POWDERED VEGETABLE DRUGS 



35. (Fig. 54.) CALUMBA. Calumba. U. S. 

 Fl. ex. 20. Tinct. 20. 



Columbo, E. Kolombowurzel, G. Colombo, Fr. 



The roots of Jateorrhiza palmata Miers, Menispermaceae. 



Pale brownish yellow. 



Slight odor, recalling taraxacum. 



Bitter, mucilaginous. 



Large-celled thin walled parenchyma with large simple starch 

 granules having very distinct radiate hili; very large reticulate ducts; 

 a few thin walled porous sclerenchyma cells and some corky tissue. 



Ash 7.5 per cent. 



May be adulterated with roots of Bryonia alba and Frasera Walteri. 



