312 POWDERED VEGETABLE DRUGS 



72. CORIANDER. Coriander. U. S. 

 Fl. ex. 30. 



Koriander, G. Coriandre, Fr. 



The fruit of Coriandrum sativum L., Umbelliferae. 



Light brown. 



Peculiarly aromatic; recalling carum. 



Pungent. 



Some yellowish thin- walled parenchyma; numerous groups of thick 

 walled, porous, elongated bast-like cells. Endosperm of rather small 

 cells; walls medium in thickness, filled with oil and proteid granules. 

 Aggregate crystals of calcium oxalate. No sclerenchyma. 



Ash 7 per cent. 



Adulterated with stem and leaf fragments. Frequently of inferior 

 quality. 



73. (Fig. 82.) CORNUS. Cornus. 

 Fl. ex. 60. 



Dogwood bark, E. Grossbliithige Kornelrinde, Hornbaumrinde, G. 

 Ecorce de carnouiller a grandes fleurs, Fr. 



The root bark of Cornus florida L., Cornaceae. 



Bright pinkish brown. 



Odorless. 



Bitter, astringent. 



Rather large porous and thick walled sclerenchyma alternating 

 with smaller, less porous sclerenchyma containing a granular sub- 

 stance ; parenchyma with prismatic and aggregate crystals of calcium 

 oxalate. 



