106 THE ELEMENTS OF VEGETABLE HISTOLOGY 



Plate 40. — Fibers. 



1. Baptisia root. (Nonporous, striated.) 2. Ceylon Cinnamon bark. (Non- 

 porous, nbnstriated.) 3. Hydrangea root. (Porous, nonstriated.) 4. Echin- 

 acea root. (Porous, nonstriated.) 5. Senna leaf. (Nonporous, nonstriated.) 



