150 Trees with Simple Leaves. [BUI 



Fig. 75. Sugar Maple, Hard Maple, Rock Maple. A. sac- 

 charum, Marsh. A. saccharinum, Wang. 



Leaves, SIMPLE ; OPPOSITE ; EDGE LOBED, with the lobes 

 very sparingly and coarsely sharp-toothed or the 

 lower pair entire. 



Outline, rounded, with three to five lobes, usually five, 

 with the hollows between the lobes and between the 

 coarse teeth rounded. Apex of the lobes, pointed. 

 Base, heart-shaped or nearly squared. 



Leaf, dark green above ; slightly lighter beneath ; smooth 

 or somewhat downy on the ribs ; closely resembling 

 that of the introduced " Norway Maple " but lacking 

 the latter's milky-juiced leaf-stem. 



Bark, light gray, usually smoothish when young, becoming 

 rough and scaly. 



Flowers, yellowish-green and very abundant. April, May. 



Fruit, greenish-yellow, smooth, drooping, on thread-like 

 and hairy stems one to two inches long, with wings 

 about one inch long, broad and slightly spreading. 

 September. 



Found, from Southern Canada through the Northern 

 States, southward along the Alleghany Mountains, 

 and westward to Minnesota, Eastern Nebraska, and 

 Eastern Texas. Its finest development is in the 

 region of the Great Lakes. It grows in rich woods ; 

 often it forms "groves," sometimes extensive forests. 



A tree fifty to eighty feet high or more ; of very great 

 value in many directions, as a shade-tree, for fuel, for 



