TREES 



Native and naturalized, found in the Northeastern United 

 States (Maine to Virginia, and west to the Missis- 

 sippi), classified by their LEAVES. 



A very few of the most familiar cultivated foreign trees, 

 even though not naturalized, are put into this section, to 

 facilitate identification. Those shrubs that are sometimes 

 arboreal are here put in parenthesis, and their descriptions 

 must be looked for under " Shrubs." 



ANALYTICAL KEY 



Trees not " evergreen " nor cone-bearing (those are 151— 

 170 ; see below). 



Trees not thorny nor prickly (those are 135— 1 50; see 

 below). 



LEAVES SIMPLE: 

 Alternate : 

 Entire : 



widely distributed within territory : 



leaves thickish and leathery : 1-5, 63 



("Shrubs," 92, 93) 

 leaves thin : 6-14 

 found only on frontier — Virginia, Kentucky, 

 Illinois, or northern part of New England 

 or of New York: 15-19 

 181 



