152 



WOOD AND FOREST. 



48 



CoKK Elm. Eock Elm. Hickoey Elm. White Elm. 

 Cliff Elm. 



Cork refers to corky ridges on branches. 



Ulmits thomasi Sargent. Uhmis racemosa Thomas. 



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



;\\\ ' ^o" /f-yo"^^ Habitat: (See map) ; 



best in Outaiio and south- 

 ern Michigan. 



Characteristics of the 

 Tree: Height, 80'-100'; 

 diameter. 2'-3', trunlc of- 

 ten clear for 60' ; bark, 

 gmy tinged with red, 

 corky, irregiihir projec- 

 tions, give sliaggy 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. 



Habitat. 



Leaf. 



Physical Qualities : 



Heavy (15th in this list), 

 4.5 lbs. per cu. ft. ; sp. gT., 

 0.7263; very strong (13th 



