Fig. 14.—Grand fir (Abies grandis).
The Engelmann spruce is easily distinguished from its associates by its stiff, bluish-green pointed leaves, which prick the hand when they are grasped. In the mountain parks it is a handsome tree 50 to 60 feet high. When it stands apart from other trees the lower branches are thick and long and extend to the ground. The crown is very broad at the base, but narrow and spirelike at the top. The Engelmann spruce reaches its best development at low elevations, where it often grows in dense, pure stands. Under these conditions it reaches a height of 100 feet. The bole is straight and free from limbs and the top is short and compact.
Fig. 15.—Engelmann spruce (Picea engelmanni).
The young cones are massed in upright green and purple clusters at the tips of the upper branches. They are notable for the purity and brilliance of their coloring. As they mature they become pendant and fade to a light brown. The seed is produced in abundance nearly every year, although small and seedling trees are not usually numerous.
The wood is soft, white, compact, and even grained. It is free from pitch and odor. It is valuable for boxing, cooperage, and certain kinds of finish. It is also an excellent material for the tops of violins and other stringed instruments. The Engelmann spruce is, however, of little importance as a timber tree on account of its scarcity and the scattered stands in which it grows. It is a long-lived tree unless attacked by fire, to which it is very vulnerable.
Fig. 16.—A group of yellow cypresses (Chamaecyparis nootkatensis) on the high slopes of Mount Rainier National Park, altitude about 6,000 feet.