. Forests and trees [microform]. Forests and forestry; Forêts et sylviculture; Trees; Arbres. •w 132 Forests and Trees dinary white spruce. Recently it has been describcil as a distinct species under the name Picea alhertiana, and is said to have shorter and more globular cones than the eastern tree. Whether or not it will continue to be regarded as a separate species is still doubtful. It is recognized by Rydberg in his "Flora of the Rocky Mountains and Adjacent ; 2. Black Sprvck. Picea mariana. (Miller) B. S. I*. This is a companion of the white spruce both in appearance and
. Forests and trees [microform]. Forests and forestry; Forêts et sylviculture; Trees; Arbres. •w 132 Forests and Trees dinary white spruce. Recently it has been describcil as a distinct species under the name Picea alhertiana, and is said to have shorter and more globular cones than the eastern tree. Whether or not it will continue to be regarded as a separate species is still doubtful. It is recognized by Rydberg in his "Flora of the Rocky Mountains and Adjacent ; 2. Black Sprvck. Picea mariana. (Miller) B. S. I*. This is a companion of the white spruce both in appearance and distribution, the two being frequently confused. It is somewhat smaller than the preceding, with rather shorter leaves. The branches are short ^nd drooping, with often a slight up- ward curve at the tips. The lower branches die more readily than in the white spruce and often fall off on one side or in patches along the trunk, leaving only a compara- tively short, perfect cone at the top. To the person well acquainted with these two trees their general appearance will enable the two species to be distinguished even at a dis- tance. For those who require a more minute point of difference the cones furnish the most distinctive feature. In the black spruce these are less than an inch long and become almost globular when the scales open to discharge the seed. Unlike the white spruce, the seed is shed slowly and the cones remain on the stems for years, the older near the base of the stems and the newer towards the apex. The cones of different ages sometimes form dense masses on the upper branches and make an unmistakable point of identification. This tree is distributed all across Canada and extends far northward. In the more southern part of its range it grows only in cold sphagnum bogs, but in more northern regions is. Fic. g. — Black Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio
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