. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. m 178 «4 AMERICAN CRAB APPLE Pyrus coronaria, Linnaeus OEHirS DESCKIPTIOlf—Thl« genvm emtraoes about 40 species of small trees and shrubs which Inhabit the north temperate zone. About 10 species are native to North America and 6 to Pennsylvania. No Important tlnaber trees are member* of this genus but some of our Important fruit trees like the ApplfR and Pears belong here. Doth our Common Pear and Common Apple have been Introduced from Europe. Some authors make a distinct genus, Mains, for the Apples and another on
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. m 178 «4 AMERICAN CRAB APPLE Pyrus coronaria, Linnaeus OEHirS DESCKIPTIOlf—Thl« genvm emtraoes about 40 species of small trees and shrubs which Inhabit the north temperate zone. About 10 species are native to North America and 6 to Pennsylvania. No Important tlnaber trees are member* of this genus but some of our Important fruit trees like the ApplfR and Pears belong here. Doth our Common Pear and Common Apple have been Introduced from Europe. Some authors make a distinct genus, Mains, for the Apples and another one, Sorbus, for the Mountain Ashes. Both are Included under Pyms In this publication. FOBM—A smaU tree which may attain a height of 25 ft, with a diameter of 14 inches. Trunk usually short and bearing rather slender, spreading, and crooked branches which form a rather broad round-topped crown. BABK—Up to J of an Inch thick, reddlsh-brown, roughened by longitudinal furrows which separate low ridges often covered with scales. TWIGS—Rather stout, at first white-woolly, later smooth, reddlsh-brovim, after first year bearing stubby spurs or sometimes sharp spines. BXn)8—Alternate, about |-i of an inch long, bright red, blunt-pointed or, on vigorous terminal shoots, sharp-pointed and curved, covered with 4-8 lislble scales. LEAVES—Alternate, single, ovate or elliptical, 3-4 inches long, usually rounded at base, sharp-pointed at apex, sharply serrate on margin, usually smooth, dark green above, pale green below. Stipules long, falling early. LEAF-SCABS—Alternate, raised on projection of twigs, cresent-sbaped; with usually 3 con- spicuous bundle-scars. FLOWEBS—Appear In May or June when the leaves are almost fully developed. Perfect, fragrant, rosy-white, about lJ-2 Inches across, arranged In umbel-Uke cymes. The flowers as a whole resemble those of the Common Apple. FBUIT—Ripens about October. Pome or apple-like, borne on long slender stalks, depressed- globose l-lj
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforests, bookyear1901
