104 



SCIENTIFIC AND APPLIED PHARMACOGNOSY 



The cells of the endodermis and hypodermis are oblong in trans- 

 verse section and nearly uniform^ thickened (Fig. 41). 



Mexican Sarsaparilla. In bundles (Fig. 39), with the roots 

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

 shrunken, the furrows containing larger or smaller amounts of soil. 

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

 the cells of the endodermis are considerably thickened (Fig. 41). 



c 



FIG. 41 . 1, transverse section of Honduras sarsaparilla showing the uniformly 

 thickened hypodermal cells (e) with cork lamellae (k); E, epidermal cells; 

 H, hypodermal cells. 2, similar section of Mexican sarsaparilla; 3, trans- 

 verse section of Honduras sarsaparilla showing endodermal cells (e) with 

 cork lamellae (k) and lignified walls (//) ; 4, similar section of Mexican sarsa- 

 parilla showing endodermal cells (E). After Meyer. 



Jamaica Sarsaparilla occurs in rather loose bundles. The roots 

 are especially marked by the numerous coarse rootlets. The cells 

 of the hypodermis and endodermis somewhat resemble those of 

 Mexican sarsaparilla. 



Inner Structure. See Figs. 40-42. 



By reason of the differences in the shape and thickenings of 

 the walls of the cells of the endodermis Hartwich (Ber. d. pharm 



