. Handbook of the trees of the northern states and Canada east of the Rocky mountains. Photo-descriptive. JACK PINE. GRAY PINE. NORTHERN SCRUB PINE. Pinus divaricata (Ait.) Gord.^. Fig. 12. Branch with leaves and closed mature and young cones, 1-3 ; section of branch bearingopening cones with escaping seeds, 4 ; scattered seeds, 5 ; detached leaf-clusters, Trunk of tree as found in Essex Co., N. Y. Handbook of Trees of the Northern States and Canada. 13 The Jack Pine attains its greatest size inthe northwestern part of its range, where it i-^often 70 or 80 ft. in height with trunk 2 or 3
. Handbook of the trees of the northern states and Canada east of the Rocky mountains. Photo-descriptive. JACK PINE. GRAY PINE. NORTHERN SCRUB PINE. Pinus divaricata (Ait.) Gord.^. Fig. 12. Branch with leaves and closed mature and young cones, 1-3 ; section of branch bearingopening cones with escaping seeds, 4 ; scattered seeds, 5 ; detached leaf-clusters, Trunk of tree as found in Essex Co., N. Y. Handbook of Trees of the Northern States and Canada. 13 The Jack Pine attains its greatest size inthe northwestern part of its range, where it i-^often 70 or 80 ft. in height with trunk 2 or 3ft. in diameter, and forms of con-siderable extent. Throughout the eastern partof its range, however, it is much abundantand more reduced in stature, commonly throw-ing out its hranelies immediately above theground as shown in our bark picture. Itsshort needles and small cones incurved uponthe branchlets quickly distinguish it from allof its neighbors. It develops a rather sym-metrical open top of straightish branches andtough Hexible branchlets and its trunk isvested in a dark reddish brown bark roughwith irregular scaly plates and ridges. The wood, of which
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