. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 174 FIRE CHERRY Prunus pennsylvanica, Linnaeus FOBM—^A Hiiiall tree reaching a height of 40 ft. with a diameter of about 18 incliee. Truuk usually short bearing rather ascending branches which form a narrow and rather flat-topped crown. The largest specimen the author has seen in Pennsylvania was growine upon the Hull State Forest, Potter county, and had a breast-high diameter of fourteen and one-half inches. BABK—On old trunks somewhat roughened but not fissured. On younger trunks al)out i of an Inch thick, reddis
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 174 FIRE CHERRY Prunus pennsylvanica, Linnaeus FOBM—^A Hiiiall tree reaching a height of 40 ft. with a diameter of about 18 incliee. Truuk usually short bearing rather ascending branches which form a narrow and rather flat-topped crown. The largest specimen the author has seen in Pennsylvania was growine upon the Hull State Forest, Potter county, and had a breast-high diameter of fourteen and one-half inches. BABK—On old trunks somewhat roughened but not fissured. On younger trunks al)out i of an Inch thick, reddish-brown, rather smooth but roughened by large horizontally-elongated lenticels. The outer bark peels off readily in thin iilm-llke layers and exposes the green inner bark which is bitter. TWIGS—Slender, snwoth, glossy, bright red, sometimes wholly or partly covered with a thin grayish coating which rubs off very readily, marked with numerous pale to yellowish and conspicuous lenticels which in lime become horizontally-elongated. The twigs have a character- istic blttor taste and a peculiar odor. BTTDS—Alternate, small, usually less than } of an inch long, ovate, dull-pointed, smooth or slightly grayish, scaly, clustered at the end of twigs and often along the sides; covered with scales which are hard to distinguish. They are sometimes clustered on stubby lateral spurs. LEAVES—Alternate or sometimes paired but not opposite each other, simple, oblong- lanceolate, 3-5 inches long, tapering or rounded at base, sharp-pointed at apex, sharply and finely serrate on margin, rather shining, green and smooth on both sides. LEAT-SCASS—Alternate, more than 2-ranked, somewhat raised on projections of twigs, elongated, semi-elliptical in outline, with 3 bundle-scars, the central one of which is usually the largest. FLOWERS—Appear about May when leaves are partly developed. They are white, perfect, about i of an inch across, borne on long stalks in 4-5 flowered umbels. FEUIT—^
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