286 



tioned, the parts of the leaf which are exposed to the light 

 possess a spongy parenchyma developed in the form of 

 palisade. 



Fig. 28. Saxifraga oppositifolia. 



The leaf: A ("li), Leaf-form. B, Marginal hairs. C, Longitudinal section. Z), Transverse 

 eection. JE, Spongy parenchyma. F, Spongy parenchyma from the leaf-stalk. {B, C, D, 



E, F «'/i). 



