A STUDY OF LEAVES. 



CLASSES. 



Leaves are Simple or Compound. A simple 

 leaf consists of one blade. This blade may be en- 

 tire or lobed. 



Entire. 



Lobed. 



A compound leaf has several blades, each of 

 which is called a leaflet. 



The difference be- 

 tween a deeply lobed 

 simple leaf and a com- 

 pound leaf is that the 

 lobes of a simple leaf 

 never extend entirely to 

 the mid-vein, while the 

 leaflets of a compound 

 leaf arise directly from 

 the mid-vein or the pe- 



tl0 ^ e ' Compound Leat. 



