PLATE 2,7 



Hypodermal Cells 



1. Cross-section sarsaparilla root (Smile x officinalis, Kunth). 



2. Longitudinal section sarsaparilla root (Smilax officinalis, Kunth). 



3. Cross-section triticum {Agropyron repens, L.). 



4. Longitudinal section triticum (Agropyron repens, L.). 



