CHAPTER XIII 

 LEAVES 



FACTS ABOUT LEAVES 



WE found in an earlier lesson that all of our farm 

 plants have roots, stems, leaves, flowers, fruit and 

 seeds. We studied the root first as being the most 

 important part of the plant to the farmer. The 

 seed was the next part studied, for that was con- 

 sidered the next most important, because the seed 

 is the main reliance for new plants. The part next 

 in importance is the leaf and that we will now study. 



If you will go into the field and observe the 

 leaves on a number of plants, you will find that the 

 following facts are true: 



They are all green. 



They are flat and thin. 



Many of them are very broad. 



Some of the leaves on a single branch are larger 

 than others on the same branch, and some have 

 longer stems than others. 



Most of them have a rather dark glossy upper 

 surface and a lighter rougher under surface. 



The leaves on the lower branches of the trees are 

 spread out in a more or less flat layer and have 

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