Description of Native Trees 
too. Sugar Maple. Rock Maple. (Acer saccharinum.) 
LEAF: 3-6, simple, opposite, sparingly serrate, 3-5 main 
lobes, other smaller ones, each main lobe tapering into a long 
blunt point. FLOWER: small, greenish-yellow, clustered, de- 
veloping with the leaves; April, May; more northerly, and in 
mountains southerly. (Pl. III.) 
1o1. Striped Maple. Moosewood. (Acer pennsylvanicum.) 
LEAF: 3-7, simple, opposite, closely serrate, 3-lobed ear 
apex, very broad. FLOWER: greenish, in long drooping racemes, 
after leaves are out; June. RANGE: Maine to Wisconsin and 
south, especially in mountains; bark with dark longitudinal 
stripes; low tree and shrub. (Pl. IV.) 
102. Mountain Maple. (Acer spicatum.) 
LEAF: 3-5’, simple, opposite, serrate, 3- (or slightly 5-) 
lobed, lobes generally very tapering, downy beneath, lighter 
green than striped maple, with which it is frequently growing. 
FLOWER : greenish, in erect racemes that droop in ripening; 
June. RANGE: Maine to Wisconsin, and south, especially in 
mountains ; low tree and oftenera shrub. (Pl. IV.) 
103. Cut-leaved Maple. (Acer wierii laciniatum.) 
LEAF: 3-7, simple, opposite, very deeply and numerously 
lobed (5 main lobes, each with secondary lobes and coarse teeth), 
whitish beneath ; flower and fruit as in other maples; cultivated 
variety. (Pl. IV.) 
104. Locust. Acacia. Black or Yellow Locust. (Robinia 
pseudacacia.) 
LeaF: 8-14’, odd-pinnate, alternate; leaflets, 7-25, 1'-2' 
long, oblong or ovate, entire, distinctly stemmed. FLOWER: 
white, sweet-pea-shaped, in dense drooping racemes, fragrant ; 
early June. Pod, 3-4’ long, hanging all winter; bark rough, 
trunk and branches often prickly, especially in the younger growth. 
RANGE: Pennsylvania to Illinois, and south ; widely cultivated. 
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