THE COVERING TISSUES 



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PLATE 33. Surface Views of Leaf Epidermis. 



1. Hepatica leaf (wavy walls). 2. Chimaphilla leaf (beaded walls). 3. Hen- 

 bane leaf (wavy and striated walls). 4. Senna leaf (angled cells). 5. Ccnvallaria 

 leaf (beaded walls). 



