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 more or 

 less free (Fig» 191) ; the latter grayish-brown, somewhat 

 shrunken, the furrows containing larger or smaller amounts of 



Fig. ig4. i, transverse section of Honduras sarsaparilla showing the hypodermal 

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

 section of Honduras sarsaparilla showing endodermal cells (e) with cork lamella (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 

 Avails 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 large 

 bundles (Fig. 191), closely bound by means of the stem of a vine, 

 and the ends evenly trimmed. 



29 



