CRUDE DRUGS. 



621 



what reniform, flattened, light brown ; testa finely pitted, with a 

 curved embryo embedded in the endosperm. Oclor distinct, heavy. 

 Taste somewhat disagreeable. 



Fig. 268. Atropa Belladonna showing the alternate, petiolate. ovate, entire leaves, 

 in the axils of which are the solitary fruits or flowers with large, leafly hracts. 



Inner Structure. — See Figs. 285, K; 287, C. 



Constituents. — Several alkaloids amounting to from 0.3 to 

 0.7 per cent., of which hyoscyamine (see Hyoscyamus) exists in 

 largest proportion. The drug also contains hyoscine (scopola- 



