. Bulletin. Forests and forestry -- United States. 70 TIMBER. ADDITIONAL NOTES FOR DISTINCTIONS IN THE GROUP. Cherry anil birch are sometimes confounded, the high pith rays on the cherry on radial sections readily distinguishes it; distinct pores on birch and spring-wood zone in cherry as well as the darker vinous-brown color of the latter will prove helpful. Two groups of birches can be readily distinguished, though specific distinction is not always possible. 1. Pith rays fairly distinct, the pores rather few and not more abundant in the sprinjr wood; wood heavy, usually darker, (No. 48) Che
. Bulletin. Forests and forestry -- United States. 70 TIMBER. ADDITIONAL NOTES FOR DISTINCTIONS IN THE GROUP. Cherry anil birch are sometimes confounded, the high pith rays on the cherry on radial sections readily distinguishes it; distinct pores on birch and spring-wood zone in cherry as well as the darker vinous-brown color of the latter will prove helpful. Two groups of birches can be readily distinguished, though specific distinction is not always possible. 1. Pith rays fairly distinct, the pores rather few and not more abundant in the sprinjr wood; wood heavy, usually darker, (No. 48) Cherry birch and (No. 49) yellow birch. 2. Pith rays barely distinct, pores more numerous and commonly forming a more porous spring-wood zone; wood of medium weight, (No. 51) Canoe or paper birch ar<! G H , c ^ P ttlli. ar pn- Beech I Sycamore I Birch. Fig. 45.—"Wood of beech, sycamore, and birch. The species of maple may be distinguished as follows: 1. Most of the pith rays broader than the pores and very conspicuous, ( No. 79) Sugar maple. 2. Pith rays not or rarely broader than the pores, fine but conspicuous. a. Wood heavy and hard, usually of darker reddish color and commonly spotted on cross section (No. 80) Red maple. b. Wood of medium weight and hardness, usually light colored, (No. 82) Silver Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Division of Forestry. Washington : G. P. O.
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