PLATE 2 



Leaf Epidermis 



1. Uva-ursi (Arctostaphylos uva-ursi, [L.] Spring). 



2. Boldus (Peumus boldus, Molina). 



3. Catnip (Nepeta cataria, L.). 



4. Digitalis (Digitalis purpurea, L.). 

 4-A. Origin of hair. 



