240 



Explanation of Terms. 



FIG. e. 



FIG. /. FIG. g. 



(2) Lance-shaped, when it is much longer than wide, 

 and gradually tapering to a point. (Fig. i, Willow.) 



FIG. *. 



FIG. h. 



(3) Inversely lance-shaped, when gradually tapering 

 down instead of up. 



(4) Egg-shaped, when it is the shape of an egg, with 

 the broadest part below the middle, but without regard to 

 the base and apex. (Fig. /, Dogwood.) 



(5) Inversely egg-shaped, when it is the .shape of an 

 egg, but with the broadest part above the middle. 



