Se FOREST-TREES OF THE UNITED STATES. 
fields. Itis variable in height, sometimes rising to 70 or 100 feet high. 
The timber is said to be valuable, though less so than that of P. australis. 
“No. 363. Pinus aristata, Eng.—Prickly-coned Pine.—Rocky Mount- 
ains. This species was first found in Colorado near Pike’s Peak, but it 
is now considered to be synonymous with the next. 
No. 364. Pinus Balfouriana, Jeffrey.—Balfour’s Pine-—Rocky Mount- 
ains. The specimen is from Southern Utah, and grows on high, bar- 
ren, sandstone mountains; it grows about 50 to 60 feet high. The tree 
is distinguished by its long branches, which are heavy, causing the ends 
to hang down. The tree is compact in appearance and of very dark-green 
color. It is thought by some that the tree of Oregon, which has been 
described under this name, is a different species. 
No. 365. Pinus flexilis, James.—Bull Pine.—Rocky Mountains. This 
is the prevailing pine of the East Humboldt Mountains, Nevada, and 
frequent in the Wasatch. It also grows in Colorado and on the San 
Francisco Mountains of Arizona. In the Wasatch Mountains it is found 
at high altitudes on limestone ledges, and has a branched and knotty 
habit, rendering it unfit for lomber. It is called by the inhabitants 
Bull Pine. Itis a middle-sized tree, usually 30 to 50 feet high, but re- 
eorded by Fendler as 60 to 80 feet high near Santa Fé. 
No. 366. Pinus albicaulis, Eng.—White-barked Pine.—Rocky Mount- 
ains. This species, although closely related to the preceding, is believed 
to be different. It grows on] extreme altitudes. It grows on the 
Cascade Mountains of Oreg dine peaks in the Sierra Nevada 
Mountains, and on high mo Idaho and Montana. The name 
is suggested by the color of ark of the tree, which Dr. EngeJman 
says is as white as milk. 
No. 367. Pinus Lambertiana, Doug.—Sugar Pine.—Sierra Nevada 
Mountains. Found sparsely growing on the Sierras of California, 
through their extent, at altitudes of from 4,000 to 10,000 feet. Itis often 
150 to 220 feet high, with a diameter of 8 to 14 feet. It is highly 
prized and eagerly sought by lumbermen for all articles of building- 
lumber, and is fast being exhausted. Itis called Sugar Pine from the 
sweet resin which exudes from partially-burned trees. It is also called 
Mammoth Pine and Shake Pine. It has enormous cones. 
No. 368. Pinus monticola, Dougl.—Soft Pine; Little Sugar Pine.— 
California. Grows sparsely on the high Sierras, at altitudes of 7,000 to 
11,000 feet. It sometimes attains a height of 150 to 200 feet, with a 
diameter of 5 to 7 feet. It resembles the Sugar Pine, but with whitish, 
much furrowed, bark and smaller cones. The timber is similar to that 
of White Pine, but is seldom used, because the trees are so inaccessible. 
No. 369. Pinus strobus, L.—White Pine; Weymouth Pine.—Eastern 
United States. An old, well-known, and useful tree, extending from 
Canada to Virginia, but plentiful in New England, New York, and 
Pennsylvania. It is a large tree, becoming 100 to 150 feet high. Itis 
the source of much of the lumber brought from the Northern States. It 
is not only very valuable on account of its wood, but is one of the finest 
ornamental conifers. 
No. 370. Pinus Chihuahua, Eng.—Southern Arizona and Northern 
Mexico. 
No. 371. Abies alba, Michx.—White Spruce.—New England and Alle- 
ghany Mountains. A small tree, native of the northern portion of the 
United States and Canada, extending northward to the extreme con- 
fines of vegetation. It grows from 20 to 30 feet high, according to soil 
and latitude. It is frequent in cultivation, and is considered a handsome 
tree. 
