Pinus. CONIFERiE. H 5 



348. Pinus monticola, Dougl. 

 White Pine. 



Vancouver's Island, Coast and Gold Ranges of southern British Colum- 

 bia, east along the mountains of northern Washington, through the Ccenr 

 d'Alene and Bitter Root Mountains of Idaho to the valley of the Flathead 

 River, Montana ; south along the Cascade Mountains of Washington and 

 Oregon and the California Sierras to Calaveras County. 



A large tree, 30 to 4G metres in height, with a trunk 0.90 to 1.50 

 metres in diameter ; most common and reaching its greatest development 

 in the Pend d'Oreille and Clark's Fork regions of Idaho, here a valuable 

 and important timber tree ; in British Columbia generally below 3,000 feet, 

 and in California between 7,000 and 10,000 feet elevation,, not common. 



Wood very light, soft, not strong, close, straight-grained, compact; 

 bands of small summer cells thin, resinous, not conspicuous ; resin passages 

 numerous, not large, conspicuous ; medullary rays numerous, obscure ; 

 color light brown or red, the sap-wood nearly white ; inferior in quality, 

 although resembling that of the Eastern white pine (P. Strobus) ; in 

 Idaho and Montana somewhat manufactured into lumber. 



349. Pinus Lambertiana, Dougl. 

 Sugar Pine. 



Oregon, — Cascade and Coast Ranges, from the head of Mackenzie 

 River and the valley of the Rogue River, south ; California, — western 

 flank of the Sierra Nevada, through the Coast Ranges to the Santa Lucia 

 Mountains, and in the San Bernardino and Cuyamaca Mountains. 



A laro-e tree, 46 to 92 metres in height, with a trunk 3 to 7 metres in 

 diameter ; most common and reaching its greatest development upon the 

 Sierras of central and northern California between 4,000 and 8,000 feet 

 elevation; in the Oregon Coast Ranges descending to 1,000 feet above 



sea-level. 



Wood very light, soft, coarse, straight-grained, compact, satiny, easily 

 worked ; bands of small summer cells thin, resinous, conspicuous ; resin 

 passages numerous, very large and conspicuous ; medullary rays numer- 

 ous, obscure; color light brown, the sap-wood nearly white; now largely 

 manufactured into lumber and used for interior finish, door-blinds, sashes, 

 etc., and for cooperage and wooden-ware ; less valuable and less easily 

 worked than that of the Eastern white pine (Pinus Strobus) ; its quality 

 injured by the larger and more numerous resin passages. 



A saccharine exudation from the stumps of cut or partially burned 

 trees is sometimes used as a substitute for sugar. 



350. Pinus flexilis, James. 

 White Pine. 



Eastern slopes of the Rocky Mountains, Montana, and probably farther 

 north, south to New Mexico, Guadalupe and Limpia Mountains, western 



