Description of Native Trees 



IOO. 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. (PI. III.) 



xoi. Striped Maple. Moosewood. (Acer pennsylvanicum.) 



LEAF : 3'-7', simple, opposite, closely serrate, 3-lobed near 

 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. (PI. IV.) 



102. Mountain Maple. (Acer spicatum.) 



LEAF : 3'-$', 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 oftener a shrub. (PI. IV.) 



103. Cut-leaved Maple. (Acer wierii laciniatum.) 



LEAF : 3'-y', 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. (PI. IV.) 



104. Locust. Acacia. Black or Yellow Locust. (Robinia 



pseudacacia.) 



LEAF : S'-I4/, odd-pinnate, alternate ; leaflets, 7-25, i'-2 f 

 long, oblong or ovate, entire, distinctly stemmed. FLOWER : 

 white, sweet-pea-shaped, in dense drooping racemes, fragrant ; 

 early June. Pod, $'-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. 

 (PI. XL) 



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