. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. SLIPPERY ELM Leaves.—Alternate, ovate-oblong, five to seven inches long, rounded at the base on one side and oblique on the other, coarsely and doubly serrate, acute or acuminate. Feather-veined, midrib very prominent beneath. They come out of the bud conduplicate, thin, light green ; when full grown they are thick, firm, dark green, rough abo\e, paler and somewhat rough beneath. In autumn they turn to a didl yellow. Petioles short, hairy ; stipules caducous. Flowers.—March, April, befo
. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. SLIPPERY ELM Leaves.—Alternate, ovate-oblong, five to seven inches long, rounded at the base on one side and oblique on the other, coarsely and doubly serrate, acute or acuminate. Feather-veined, midrib very prominent beneath. They come out of the bud conduplicate, thin, light green ; when full grown they are thick, firm, dark green, rough abo\e, paler and somewhat rough beneath. In autumn they turn to a didl yellow. Petioles short, hairy ; stipules caducous. Flowers.—March, April, before the leaves. Perfect, borne in clusters on short pedicles produced from the axils of minute green bracts. Calyx.—Campanulate, five to nine-lobed, green, hairy ; lobes imbricate in bud. Corolla. — Wanting. Stamens.—Five to nine, exserted, light yellow ; filaments slender ; anthers dark red, do not shed their pollen until the stigmas have begun to wither, extrorse, two-celled ; cells opening longitudinally. Pistil.—Ovary superior, one-celled by abortion ; stigmas two, red- dish purple ; ovules solitary. Fruit. — Samaras, winged all round, maturing when leaves are half grown, semi-orbicular, one-half to three-fourths of an inch broad, hairy on the faces but naked at the margins ; emarginate with re- mains of both stigmas at the apex. Wing is broad and thin and marked by the dark line of union of the two carpels. Although the White Elm and the Slippery Elm look very much alike there are several points of difference which make it fairly easy to distuiguish them. The White Elm varies greatly in the size of its leaves. There may be individual White Elms whose leaves are larger than in- dividual Slippery Elms but upon the whole, given the same con- ditions, the foliage mass of a Slippery Elm is made up of larger leaves than that of the \v'hite Elm. The leaves are much rougher, they are rough , . , 1,1 Slippery Elm, Uhnui ptibaccns. whichever way you rub them, samaras ;4
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
