22 SAPINDACE.E. Acer. 



great lakes to Lake of the Woods ; south through the northern States 

 and along the Alleghany Mountains to northern Alabama and western 

 Florida ; west to Minnesota, eastern Nebraska, eastern Kansas, and 

 eastern Texas. 



A tree of great economic value, 24 to 36 metres in height, with a trunk 

 0.C0 to 1.20 metres in diameter, or towards its southwestern limits greatly 

 reduced in size ; rich upland woods ; often forming extensive forests, and 

 reaching its greatest development in the region of the great lakes. A form 

 with more widely lobed leaves, often downy on the lower side, common 

 along the borders of streams and on bottom-lands from western Vermont 

 to southern Missouri, extending south to northern Alabama and south- 

 western Arkansas, is var. nigrum, Gray. 



Wood heavy, hard, strong, tough, close-grained, compact, susceptible of 

 a good polish ; medullary rays numerous, thin ; color light brown tinged 

 with red, the sap-wood lighter ; largely used in the manufacture of furni- 

 ture, shoe lasts and pegs, saddle-trees, in turnery, for interior finish and 

 flooring ; in ship-building for keels, keelsons, shoes, etc., and furnishing 

 valuable fuel ; " curled " maple and " bird's-eye " maple, accidental forms 

 in which the grain is beautifully curled and contorted, are common and 

 highly prized in cabinet-making. 



Maple sugar is principally made from this species ; the ashes of the 

 wood, rich in alkali, yield large quantities of potash. 



65. Acer dasycarpum, Ehrh, 



Soft Maple. White Maple. Silver Maple. 

 Valley of the Saint John River, New Brunswick, to southern Ontario, 

 south to western Florida, west to eastern Dakota, eastern Nebraska, the 

 valley of the Blue River, Kansas, and the Indian Territory. 



A large tree, 18 to 30 or, exceptionally, 36 metres in height, with a 

 trunk 1.20 to 1.80 metres in diameter, borders of streams and intervales, 

 in rich soil ; most common west of the Alleghany Mountains, and reach- 

 ing its greatest development in the basin of the lower Ohio River. 



Wood light, hard, strong, brittle, close-grained, compact, easily worked ; 

 medullary rays numerous, thin ; somewhat used in the manufacture of 

 cheap furniture, for flooring, etc. Maple sugar is occasionally made from 

 this species. 



66. Acer rubrum, L. 



Red Maple. Swamp Maple. Soft Maple. Water Maple. 



New Brunswick, Quebec, and Ontario south of latitude 49°, north and 

 west to the Lake of the Woods, south to Indian and Caloosa Rivers, 

 Florida ; west to eastern Dakota, eastern Nebraska, the Indian Territory, 

 and the valley of the Trinity River, Texas. 



A large tree, 20 to 30 or, exceptionally, ."<2 metres in height, with a 

 trunk 0.90 to 1.50 metres in diameter; borders of streams and low, wet 



