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 II.—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) 
OPpPposITE (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: gO, 91, 102, 164 
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