PINETUM DANICUM. 



379 



Habitat. — Valley of the Yukon River, Alaska (Fort Selkirk, Dall.) ; 

 south through the interior of British Columbia, along the mountain 

 ranges of Washington Territory and Oregon, and the Sierra Nevadas of 

 California to Mount San Jacinto; on the high plateau east of tke Rocky 

 Mountains in about latitude 5G°, and south through the mountains of 

 Idaho, Montana, Wyoming, Colorado, and Utah to New Mexico and 

 Northern Arizona. 



A tree 60-80 feet in height, with a trunk 2-4 feet in diameter, 

 reaching its greatest development in the Californian Sierras ; in 

 the interior regions in dry, gravelly soil — here the prevailing tree, 

 covering immense areas, and generally replacing other species 

 destroyed by fire ; in Western Washington Territory, and southward, 

 only along the borders of moist alpine meadows between 6,000 

 and 9,000 feet elevation ; generally confounded with the closely 

 allied F. contorta of the coast, from which it may be distinguished by 

 its longer, broader leaves, very thin, scaly bark, thin sapwood, and 

 less resinous and finer-grained wood, resembling that of the White 

 Pines ; the distribution of the two species in Northern British 

 Columbia and Alaska is still undetermined. 



Wood light, soft, not strong, close, straight-grained, easily worked, 

 compact, not durable ; bands of small summer cells narrow, not con- 

 spicuous, resin passages few, not large ; medullary rays numerous, 

 obscure ; colour light yellow or nearly white, the thin sapwood lighter ; 

 specific gravity, 0*4096 ; ash, 0*32 ; occasionally manufactured into 

 lumber, and used for fuel, railway ties, &c. (C. S. Sargent). 



Hardy. Has ripened cones in Denmark. 



P. oceidentalis, Swartz, Prodr. 103, and Fl. Ind. Occid. ii. 

 1230 ; Loisel. Nouv. Duham. v. 250, t. 72, f. 2 ; Lamb. Pinet. ed. 2, 

 i. 40, t. 22 ; Ant. Conif. 40, t. 18, f. 1 ; Loud. Arbor, iv. 2271, 

 f. 2183, and Encycl. of Trees, 1015, f. 1901 ; Endl. Syn. Conif. 154 ; 

 Lindl. and Gord. -Journ. Hort. Sec. v. 215 ; Carr. Man. des PL 350, 

 and Tr. Gen. Conif. 318 ; Gord. Pinet. 234 ; Henk. and Hochst. 

 Syn. der Nadelh. 101 (not J. E. Nelson, Pinac). Larix americana, 

 foliis qiLinis, ah eodem exortu, Tourn. Inst. 586. P. foliis quinis, ah 

 eodem exortu^ Plum. Cat. 17, and PI. Amer. 154, t. 161. P. cuhensis, 

 hort, ex Gord. L c. 



Habitat. — On the mountains in the middle of St. Domingo, parts 

 of Cuba, and the Isle of Pines. 



Introduced into Europe in 1820. 



We have no plants of it in cultivation in Denmark, but I possess 

 cones brought home by the Danish botanist and plant collector, Baron 

 Eggers. 



P. oocarpa, ScLiede in Linnsea, xii. 491 ; Loud. Encycl. of 

 Trees, 1012, f. 1894-98 ; Ant. Conif. 39, t. 17, f. 2 ; Endl. Syn. 

 Conif. 152 ; Lindl. and Gord. Journ. Hort. Soc. v. 215 ; Knight, 

 ^^yn, Conif. 33; Carr. Man, des PI. iv, 348, and Tr. Gen, Conif, 



