173 



A MANUAL OF THE CONIFERS:. 



The leaves are from 2 to 2J inches long, three-angled, rigid, erect 

 and glaucous green ; the cones resemble in size and shape those of 

 P. Gembra, to which this Pine is closely allied. 



Habitat. — The mountain ranges of British Columbia, California, and 

 Nevada, from 7,000 to 10,000 feet elevation ; also on the Rocky- 

 Mountains, from Montana to New Mexico. 



Introduced by John Jeffrey, in 1851, but discovered some years 

 previous by Nuttall. 



"On the summit of the Cascade Mountains in California, the bleak 

 and barren surfaces are held by this Pine in a possession undisputed by 

 any other tree. It is there, by the rigour of the climate, compelled to 



grow in thick and tangled 

 masses scarcely rising above 

 the surface. Lower down 

 it attains much greater di- 

 mensions. On the Monitor 

 Eange, in central Nevada, 

 trees from 50 to 60 feet 

 high are not infrequent, 

 the finest specimens being 

 found on the banks of the 

 mountain streams. Pinus 

 flexilis is known among the 

 colonists as "White Pine," 

 and is the only tree of the 

 region sawn into lumber. 

 The wood is soft, white, 

 and, although not free from 

 knots, is of fair quality, 

 being about intermediate 

 between eastern White 

 Pine (P. gtrobics) and Sugar 

 Pine (P. Lambertiana)." * 

 The specific name flexilis 

 refers to the pliant crooked 

 branches. 



Pinus koraiensis is 

 believed to have been intro- 

 duced many years ago from 

 the Corea into Japan, being 



* Professor Sargent in American Journal of Science and Art, June, 1879. 



Fig. 40. — Cone of Pinus kovaierms. Natural size, 



