. Our native trees and how to identify them : a popular study of their habits and their peculiarities . Trees. BIRCH FAMILY Others are van pendula, weeping ; var. fastigiata, pyramidal; var. pubescens, leaf covered with white down. All are beautiful. PAPER BIRCH. CANOE BIRCH. WHITE BIRCH Be'tiila papyri/era. Widely distributed over a northern range. Sixty to seventy feet high. When young forming a compact pyramidal head, in old age becoming a branchless trunk, supporting a round-topped open head of pendulous branches. Prefers rich moist hillsides, borders of streams, lakes, and swamps. Sap flo
. Our native trees and how to identify them : a popular study of their habits and their peculiarities . Trees. BIRCH FAMILY Others are van pendula, weeping ; var. fastigiata, pyramidal; var. pubescens, leaf covered with white down. All are beautiful. PAPER BIRCH. CANOE BIRCH. WHITE BIRCH Be'tiila papyri/era. Widely distributed over a northern range. Sixty to seventy feet high. When young forming a compact pyramidal head, in old age becoming a branchless trunk, supporting a round-topped open head of pendulous branches. Prefers rich moist hillsides, borders of streams, lakes, and swamps. Sap flows freely in spring and by boil- ing can be made into syrup. Bark.—On old trees, near the ground, dark brown or nearly black, sharply and irregularly furrowed. At the base of young trees, brown tinged with red, separating irregularly into large plates. Higher on the trunks of old trees, on young stems and large limbs, creamy white, shining on the outer surface, bright orange on the inner, marked with horizontal lenticels and separating freely into thin papery layers. Branchlets slender, light green, then orange and finally through red and brown in the course of years they be- come white. Bark -contains not only an astringent principle but a resinous balsamic oil. Wood.—Light brown tinged with red ; light, hard, tough, close- grained and strong. Used for spools, shoe-lasts, wood pulp, fuel. Sp. gr., ; weight of cu. ft., lbs. IVinier Buds. — Ovate, acute, dark brown, resinous, a quarter of an inch long. Leaves. — Alternate, simple, two to three inches long, one- half to two inches wide, ovate, heart-shaped or rounded or wedge-shaped at base, coarsely, doubly, or irregularly serrate with spreading teeth, abruptly acuminate; midrib slender, yellow, raised and rounded, and marked with minute black glands. They come out of the bud bright green, pubescent, resinous; when full grown are thick, firm, dull dark green above, pale yellow green beneath, covered with min
Size: 1758px × 1422px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkcscribnerss
