152 



WOOD AND FOREST. 



Habitat. 



48 



CORK ELM. EOCK ELM. HICKORY ELM. WHITE ELM. 

 CLIFF ELM. 



Cork refers to corky ridges on branches. 



Ulmus tliomasi Sargent. Ulmus racemosa Thomas. 

 Ulmus, the classical Latin name; racemosa, refers to racemes of flowers. 



Habitat: (See map) ; 

 best in Ontario and south- 

 ern Michigan. 



Characteristics of the 

 Tree: Height, 80'-100'; 

 diameter, 2'-3', trunk of- 

 ten clear for 60'; bark, 

 gray tinged with red, 

 corky, irregular projec- 

 tions, give shaggy appear- 

 ance ; leaves, obovate, 

 doubly serrate, 3"-4" long ; 

 fruit, pubescent, samaras. 



Appearance of Wood: 



Color, light brown or red; 

 sap-wood yellowish; ring- 

 porous; rings, marked 

 with one or two rows of 

 small open ducts; grain, 

 interlaced ; rays, numer- 

 ous, obscure. 



Physical Qualities : 

 Heavy (15th in this list). 

 45 Ibs. per cu. ft. ; sp. gr., 

 Leaf. 0.7263; very strong (13th 



