1 68 Trees with Simple Leaves. [C i 



Fig. 85.— White Pine, Weymouth Pine. P. Strobus, L. 



Leaves, simple; indeterminate in position because of 

 their closeness, but arranged along the branches in 

 Jive-leaveci bunches, with their sheaths lacking or very 

 short, excepting when young. 



Leaf, needle-shape, three to five inches long, light bluish- 

 green, three-sided, soft, and very slender. 



Cones, four to six inches long, cylinder-shape, about one 

 inch in diameter before the scales loosen ; solitary, 

 drooping, slightly curved. Scales, thin, without 

 prickles. 



Bark of trunk, lighter than in the other pines ; in young 

 trees smooth, and only slightly rough when older. 



Found, from Newfoundland to the Winnipeg River, 

 southward through the Northern States, and along 

 the Alleghany Mountains to Georgia. Its finest 

 growth is in the region of the Great Lakes. 



An evergreen tree of soft and delicate foliage, eighty 

 to one hundred and fifty feet high ; one of the most valu- 

 able timber trees of any country. The wood is clear of 

 knots, straight-grained, and soft, and is used in immense 

 quantities for building and in many kinds of manufactur- 

 ing. The branches are given off in flat, regular whorls 

 around the straight trunk. 



Genus PICEA, Link. (Spruce.) 



Fig. 86.— Black Spruce. P. Mariana (Mill) B. S. P. P. nigra, 



Link. 



Leaves, simple ; indeterminate in position because of 

 their closeness ; arranged singly and thickly all 

 around the branchlets. 



