Trees, Shrubs and Vines 



LEAVES COMPOUND: 



Pinnate (or trifoliate): 29, 165, 166 ("Trees," 116-118, 

 134) (" Vines," 2) 



found only on frontier ; 



LEAVES SIMPLE: 



Alternate : 30-34 (" Trees," 69, 71) 

 Opposite: 35-38 



Shrubs thorny or prickly (throughout area) : 

 thorny: 39-42, 3, ("Trees," 135-142, 148) 

 prickly : 43-48 



Section IL — Blossoms (white) monopetalous, i.e., with petals 

 more or less united in one piece : 

 widely distributed in territory : 



LEAVES SIMPLE : 



Alternate : 



Entire : 49-56, 92, 93, 97, 99-102 



Serrate : 50, 51, 56, 57, 13-17 ("Trees," 49) 



Opposite (or whorled) : 



Entire : 58-61, 65, 93, 112, 135 (" Trees," 93) 

 Serrate (but not lobed) : 58, 62-66 (" Trees," 96) 

 Serrate and Lobed : 67, 68 



LEAVES COMPOUND: 



Pinnate : 69, 70 



found only on frontier : 



in Virginia : 30, 30*, 32-34, 71-82 (" Trees," 72) 

 on northern edge : 83-89 



Section III. — Blossoms (white or reddish) apetalous, i.e., with 



no corolla : 90, 91, 102, 164 



244 



