. Handbook of the trees of the northern states and Canada east of the Rocky Mountains, photo-descriptive . Trees. Handbook or Trees the Xoetiierx States and Canada. 109 The Quakiiig Asp is usually a slender tree developing in the open a loose rounded top, and the trunk seldom more than 18 in. or 2 ft. in diameter, but in forests where it attains its largest size it grows to a height of 90 or 100 ft. with trunk sometimes 3 ft. in diameter. The bark of branches and young trunks is of a pale yellowish green color, or often nearly white, and on older trunks becomes fissured and divided into n
. Handbook of the trees of the northern states and Canada east of the Rocky Mountains, photo-descriptive . Trees. Handbook or Trees the Xoetiierx States and Canada. 109 The Quakiiig Asp is usually a slender tree developing in the open a loose rounded top, and the trunk seldom more than 18 in. or 2 ft. in diameter, but in forests where it attains its largest size it grows to a height of 90 or 100 ft. with trunk sometimes 3 ft. in diameter. The bark of branches and young trunks is of a pale yellowish green color, or often nearly white, and on older trunks becomes fissured and divided into nearly black scaly ridges. A conspicuous feature of the tree is the constant agitation of its small rounded leaves, occasioned even by the slightest breezes, on account of their long flattened stems. It is a very useful tree in the economy of Nature in that its seeds, seeming possessed of an exceptional power of germination, are easily scattered by the winds, and it quickly covers forest lands recently denuded by fires with a fresh growth of little forest trees. In the shelter of these the tender seeds of more useful trees germinate and thrive, and eventually monopolize the soil, ungratefullj' crowding to the wall by their overpowering shade the slender Aspens which assisted them into existence. The wood is light, a cubic foot when abso- lutely dry weighing lbs., soft and is used mainly in the manufacture of paper pulp and Leaves ovate to suborbicular, \y->'^ in- long, rounded or suheordate at base, short acuminate at apex, with tinely crenate and ciliate margin, glabrous : petioles very slender and laterally com- pressed ; winter buds glabrous. Flowerfi li^-2 in. long; scales deeply .S-r)-cleft into linear lobes fringed with gray hairs ; staminato aments with disk entire, and 0-12 stamens: stigmas 2 with linear lobes. Fruit () capsules oblon'? conical. 2-valved ; seeds about in. loni;, obovate. 1. A. W., Ill, 72. ^^W^^nT ^ ^ ^^^^ r^^'r^'if^
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