THE TRUE PINES. 233 



slightly elevated, and armed with a small prickle when young ; 

 seeds, small and winged. 



This Pine is very distinct, both in cones and leaves, from the 

 West India Pine, called P. Occidentalis by Swartz, a kind found 

 in Cuba and other West India Islands, which is quite tender, 

 and much smaller in its cones, and foliage, than the Mexican 

 plant. 



It is plentiful in different parts of Mexico. Hartweg found 

 it on the Mountains of Mexico, near Ajusco, forming a tree 

 forty feet high. It is also found on the Mountains of Orizaba, 

 at an elevation of 11,000 feet, growing from forty to sixty feet 

 high. Timber, resinous, and considered very good. 



A very hardy kind, with a spreading head. 



No. 78. PiNUS MONTicoLA, Douglas, the Mountain Pine. 



Syn. Pinus Lambertiana brevifolia, Hort. 

 Leaves, in fives, short, smooth, and blunt-pointed, from three 

 to four inches long, rather three-sided, slender, glaucous green, 

 and with a silvery appearance when young ; sheaths, short and 

 imbricated. Cones, long, slender, cylindrical, seven inches 

 long, and one inch and three-quarters wide, tapering to rather 

 a blunt point, smooth, and full of resin, generally in whorls, 

 and on short footstalks. Branches, rather stout, short, and 

 densely clothed with foliage. Scales, spoon-shaped, pointed, 

 three-quarters of an inch broad at the widest part of the cone, 

 and not closely pressed together, — the smaller ones at the base 

 of the cone being much narrower, reflexed, pointed, and of a 

 dark, yellowish grey. Seeds, small, with rather a narrow, hatchet- 

 shaped wing, one inch and a quarter long. 



A tall tree, growing 100 feet or more high, and from one and 

 a half to two feet in diameter, with very much the appearance 

 of the Weymouth Pine, but with a more dense head, and 

 shorter and more glaucous leaves. 



It is found abundantly in Northern California, on Trinity 

 Mountain, at an elevation of 7,000 feet, growing on granite rock 

 on a very poor, scanty soil, and on the higher mountains at the 



