PLATE 33 



Porous and Non-Striated Stone Cells 



1. Ceylon cinnamon {cinnamomttm zeylanicum, Nees). 



2. Caluniba root [Jateorhiza palmata, [Lam.] AHers). 



3. Dogwood root bark (Cornus florida, L.). 



4. Cubeb {Piper cubeba, L., f.) 



5. Echinacea {Echinacea angustifolia, D.C.). 



