Habitat. 



]^74 WOOD AND FOREST. 



59 



Eed Maple. 

 Acer ruhrum Linnaeus. 



Acer, the classical Latin name; ruhrum, refers to red flowers and 

 autumn leaves. 



Habitat: (See map) ; 

 best in lower Oliio valley. 



Characteristics of the 

 Tree: Height, 80'-120'; 

 diameter, 3'-4' ; branches, 

 low; bark, dark gray, 

 shaggy, divided by long 

 ridges; leaves, palmately 

 5 lobed, acirte sinuses; 

 fruit, double samaras, 

 forming characteristic ma- 

 ple key. 



Appearance of Wood: 



Color, light reddish l)rown, 

 sap-wood, lighter; diffuse- 

 porous ; rings, obscure ; 

 grain, crooked; rays, nu- 

 merous, obscure. 



Physical dualities : 



Weight, medium (30th in 

 this list). 38 lbs. per cu. 

 ft. ; sp. gr., O.GITS; strong 

 (3(ith in this list) ; elas- 

 tic (3(ith in this list) ; 

 , , hard (27th in this list) ; 



