372 



A TEXT-BOOK OF BOTANY 



n<» of the veins showing the 

 FIG. 218. Digitalis leaves: A. t-nsv-se sectj^on nea^^^ with two non-glandular 



or dcsivenua, .eaves the paUsade ceUs ^^^-^^^^:, 

 the upper epidermal layer (F.gs. 2II, 2iS). 2. i u 



