242 



Explanation of Terms. 



(6) Hollowed, when the end is more or less hollowed 

 or notched. (Fig. f.) 



Fig. o. 



Fig./. 



Fig. q. 



VI. 



The Base of the leaf is : 



(i) Squared, when it is cut nearly or quite straight 

 across. (Fig. '>'.) 



(2) Rounded. (Fig. s.) 



(3) Pointed. (Fig. /.) 



(4) Wedge-shaped, when it tapers to a point by 

 straight lines. (Fig. ?/.) 



(5) Heart-shaped, when the edge is turned in at the 

 base, forming a notch or bend. (Fig. z>.) 



\ 



Fig. r. Fig. j. Fig. £ Fig. u. Fig. t<. 



VII. 

 Arrangement of Leaves on the Branch. — Leaves 

 are : 



(1) Alternate, when they follow one another upon 

 different sides of the branch. (Elm, Walnut.) 



(2) Opposite, when they are in pairs, and upon oppo- 

 site sides of the branch. (Maple, Ash.) 



(3) Indeterminate, when they are closely crowded, 

 either in bunches (Pine, Larch), or singly up and down 

 the branches. (Spruce, Arbor Vitse.) 



rary 

 State College 



