. Handbook of the trees of the northern states and Canada east of the Rocky mountains. Photo-descriptive. WHITE BIRCH. GRAY BIRCH. OLDFIELD BIRCH. Betula popuUfuIia j\ Fig. 134. Branchlets with mature leaves and fruit, the one to the right bearing also youngstaminate ament, i ; broken cone with scattered cone-scales and seeds, 2 ; vigorous leafy shoot, 3 ;branchlet with leaf-buds and young aments in winter, 4 ; do, with flower-buds only, 5. 135. Cluster of trunks, near Albany, N. Y. 136. Wood structure magnified 15 diameters. Handbook of Treks of the Koktiiej^x States axd Canada. 119 T
. Handbook of the trees of the northern states and Canada east of the Rocky mountains. Photo-descriptive. WHITE BIRCH. GRAY BIRCH. OLDFIELD BIRCH. Betula popuUfuIia j\ Fig. 134. Branchlets with mature leaves and fruit, the one to the right bearing also youngstaminate ament, i ; broken cone with scattered cone-scales and seeds, 2 ; vigorous leafy shoot, 3 ;branchlet with leaf-buds and young aments in winter, 4 ; do, with flower-buds only, 5. 135. Cluster of trunks, near Albany, N. Y. 136. Wood structure magnified 15 diameters. Handbook of Treks of the Koktiiej^x States axd Canada. 119 This is the smallest of the tree Birches ofeastern North America, commonly not morethan 20 or 30 ft., or exce])tionally 40 ft., inheight, with trunk sometimes 18 in. in di-ameter. The bark of younger trees is dullcreamy white, usually with dark triangularmarks at the insertion of branches, and peelingoff tardily in strips around the trunk. Onolder trunks it is darker and rough withtransverse fissures. It develops a narrow andmore or less irregular top of many smallbranches commonly clothing the stem to theground. With its long stemmed small leavesin constant agitation b
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Keywords: ., bookauthorhoughromeynbeck185719, bookcentury1900, bookdecade1900
