FUNCTIONS OF LEAVES 



177 



189. Review Summary of Minute Structure of Leaves.^ 



General structure, distribution of 

 parenchyma, and prosenchy ma 



Layers of tissue seen on a cross- 

 section J 



Structure of epidermis . . . l- 



Structure of stomata . . 



Distribution of stomata . . . 



Structure and distribution of 

 chlorophyll bodies .... 



190. Review Summary of Functions of Leaves. 



Principal uses of . 



fibro-vascular bundles 

 epidermis . . . 

 stomata' . . . 

 air spaces . . . 

 palisade-cells . . 

 spongy parenchyma 

 waxy coating . . 

 hairs .... 



Substances received by the leaf . . . 



Substances manufactured by the leaf . 



Substances given off by the leaf . . 



Mineral substances accumulated in the 

 Statistics in regard to transpiration . 

 Statistics in regard to starch-making . 



(from the air . 

 from the soil . 



J into the air . 

 [ into the stem 



leaf 



1 Illustrate with sketches and diagrams. 



