A GREEN LEAF 71 



are sometimes formed, some of which appear 

 in the section of the water-lily leaf shown in 

 Fig. 47. The veins of the leaf should also be 



Fig. 48. The maize or Indian corn plant leaf-structure 



observed, and the palisade cells which form a 

 dense band along the upper surface. 



The structure of plants which have grass- 

 like leaves is represented in Fig. 48, this being 



