CRUDE DRUGS. 



449 



The cells of the endodermis and hypodermis are oblong in 

 transverse section and nearly uniformly thickened (Fig. 194). 



Mexican Sarsaparilla. In bundles, with the roots usually 

 more or less free; the latter grayish-brown, somewhat 

 shrunken, the furrows containing larger or smaller amounts of 



Fig. 194. I, transverse section of Honduras sarsaparilla showing the hypodermal 

 cells (e) with cork lamellce (k) ; 2, similar section of Mexican sarsaparilla; 3, transverse 

 section of Honduras sarsaparilla showing endodermal cells (e) with cork lamellae (k) and 

 lignified walls (H) ; 4, similar section of Mexican sarsaparilla showing endodermal cells (E). 

 After Meyer. 



soil. The outer walls of the cells of the hypodermis and the inner 

 walls of the cells of the endodermis are considerably thickened 

 (Fig. 194.) 



Para Sarsaparilla. Closely resembling Honduras sarsapa- 

 rilla in structure, but coming into market in the form of rather 

 large bundles, closely bound by means of the stem of a vine, 

 and the ends evenly trimmed. 



29 



