The Trees of Vermont 7 



cal study finds the leaves the most interesting portion of a tree and one 

 which affords him a ready means of identification. It must be re- 



I. LEAF OUTLINES 



Lanceolate. 



Ovate. 



Heart-shaped. 



Halberd-shaped. Linear. Elliptical. 



Oblong. 



Oval. 



Orbicular. 



Oblanceolate. Spatulate. Obovate. 



membered, however, that leaves vary greatly in size, shape and general 

 appearance. For example, the leaves on a flourishing sprout are 

 usually relatively large, whereas they may be much smaller on a stunted 

 tree of the same species growing nearby and subjected to adverse cir- 

 cumstances. 



The leaves of a big white oak standing in the yard may be hardly 

 lobed on the lowermost branches, while higher up they are deeply cut. 



II. 



LEAF TIPS 



Acuminate. 



Acute. 



Obtuse. 



Emarginate. 



Mucronate. 



However, in spite of the many modifications they undergo, the leaves 

 of any one species have certain rather constant cliaracteristics which 

 are found in all forms, and the student who has once learned what these 

 are will have little difiiculty in selecting and recognizing typical speci- 

 mens. 



