The tree book : A popular guide to a knowledge of the trees of North America and to their uses and cultivation . y soil, but rarely planted,Wood used for spools, shoe pegs, wood pulp and fuel. Valuablenurse trees to hardwoods and conifers on land Nature is reforesting. The only native species with which this white birch mightbe confused is the canoe birch. Look first at the bark. It ischalky white and yellowish beneath, but the chalk does not ruboff. It is hard, close bark, which does not part into thin is cracked in growth, and the short crevices are dark, makingthe trunk look grey
The tree book : A popular guide to a knowledge of the trees of North America and to their uses and cultivation . y soil, but rarely planted,Wood used for spools, shoe pegs, wood pulp and fuel. Valuablenurse trees to hardwoods and conifers on land Nature is reforesting. The only native species with which this white birch mightbe confused is the canoe birch. Look first at the bark. It ischalky white and yellowish beneath, but the chalk does not ruboff. It is hard, close bark, which does not part into thin is cracked in growth, and the short crevices are dark, makingthe trunk look grey at a distance. Wherever a bud or branch hasbeen, a large, ever-widening black V brands the trunk and the base of the trunk, the white bark is about all gone,leaving a black, furrowed area that grows gradually higher. The foliage mass of the American white birch is much thinnerand lighter than that of the canoe birch. The leaves are smalland dainty, triangular, taper pointed, suggesting in shape andtremulous poise the aspens or poplars. This is the one of our birches that most nearly resemble? 168. Pistillate flowers Staminate flowers Fruit Detail of fruit Fruiting branch THE AMERICAN WHITE BIRCH (Betula populifoha) The naiTOw, taper-pointed, triangular leaves are very glutinous when they unfold They tremble like aspen leaves, andform a thin foliage mass. The long, pendulous staminate catkin shown has a slim green pistillate one above it The flowersappear in April beiore the leaves are half-grown. The narrow, oblong cone has scales with two spreading side lobes. Its wingsare broader than the seed. The ba»k is dirty white and marked with a conspicuous black triangle or an inverted V under eachbranch. The bark can with difficulty be stripped horizontally. It is not easily separable into thin sheets. The bases of otftrunks bccorr.;* dark and turrowed
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttrees, bookyear1920
