PLATE 68 



Reserve Cellulose 



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



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



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

 yA . Porous side wall. 



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



