PLATE 68 



Reserve Cellulose 



1. Saw palmetto (Serenoa serrulata, [Michaux] Hook., f.). 



2. Areca nut (Areca catechu, L.). 



3. Colchicum seed (Colchicum autumnale, L.). 

 2>-A. Porous side wall. 



2,-B. Cell cavity above the side wall. 



