MINUTE STRUCTURE OF LEAVES 177 



189. Review Summary of Minute Structure of Leaves. 1 



General structure, distribution of 

 parenchyma, andprosenchyma 



Layers of tissue seen on a cross- 

 section 



Structure of epidermis . . . 



Structure of stomata . . . . 



Distribution of stomata . . . 



Structure and distribution of 

 chlorophyll bodies . . . , 



190. Review Summary of Functions of Leaves. 



nbro-vascular bundles 

 epidermis .... 

 stomata .... 



Principal uses of J air spaces . . . . 



palisade-cells . . ... 

 spongy parenchyma 

 waxy coating . . . 

 hairs 



Substances received by the leaf . { from the air 



[ from the soil . 



Substances manufactured by the leaf . . 



Substances given off by the leaf . i: ," . { ? nto the air 



[ into the stem 



Mineral substances accumulated in the leaf 

 Statistics in regard to transpiration . . 

 Statistics in regard to starch-making . . 



1 Illustrate with sketches and diagrams. 



