PLATE 35 



CROSS-SECTIONS OF ENDODERMAL CELLS OF 



1. Sarsaparilla root (Smilax officinalis, Kunth) 



2. Triticum (Agropyron repens, L.). 



3. Convallaria (Convallaria majalis, L.) 



4. Aletris (Aletris farinosa, L.). 



