GUIDE FOR THE CONE-BEARING TREES. 



PAGR 



Leaves clustered, in groups of two to five (Pines) .... 162167 



(a) in groups of two (Gray, Scrub, Table Mountain, Red, and Yellow 



Pines) 162-165 



(6) in groups of three (Pitch and sometimes Yellow Pines) . . . 166 

 (c) in groups of five (White Pine) 168 



Leaves clustered, in many-leaved groups (Larch) 175 



Leaves not clustered, flat, and, when young, arranged all around the twigs. 



becoming two-ranked (Fir) 174 



Leaves not clustered, flat, and arranged in two distinct ranks (Hemlock) . . 172 



Leaves not clustered, needle-shaped, four-sided, and arranged all around the 



twigs (Spruce) 168-172 



Leaves not clustered, scale-like (Arbor Vitae and Cedars) .... 178-180 



