. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. MAPLE FAMILY Stamens.—Three to seven, hypogynoiis ; filaments long and slen- der in the sterile flowers, short m the fertile. Anthers reddish, ob- long, two-celled ; cells opening longitudinally. Pistils.—In sterile flowers rudimentary ; in fertile, ovary borne on narrow disk, superior, downy, two-lobed, two-celled, compressed contrary to the dissepiment, wing-margined ; styles two, united at base only, long, exserted, red ; ovules two in each cell, one usually aborts. Fruit.—Two samara
. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. MAPLE FAMILY Stamens.—Three to seven, hypogynoiis ; filaments long and slen- der in the sterile flowers, short m the fertile. Anthers reddish, ob- long, two-celled ; cells opening longitudinally. Pistils.—In sterile flowers rudimentary ; in fertile, ovary borne on narrow disk, superior, downy, two-lobed, two-celled, compressed contrary to the dissepiment, wing-margined ; styles two, united at base only, long, exserted, red ; ovules two in each cell, one usually aborts. Fruit.—Two samaras united forming a maple key. Borne on slender drooping pedicels an inch and a half to three inches long. Vary in length from one and one-half to three inches. Wings di- vergent, straight or curved, three-fourths of an inch broad, deep. Staminate and Pistillate Flowers ofSilvei- Maple, -Ai^v ^Licchiirinum. red or pale chestnut brown. Seed reddish brown. April, May. Cotyledons thm, leaf-like. Seed germinates as soon as it falls to the ground. Tlie seed of .7r/v usually ripens in the autumn and gcrininates the fol- lowing spring. The seed of the two Auierican s[>ecies with j^recocious flowers, A. rubrum and A. .Saccharjijiim^ however, ripens at the end of a few weeks after the trees flower, and germinates at once. This is a provision, perhaps, acquired by these species to insure their perpetuation ; they grow in low, wet land, often inundated during the winter, and the seed, if it ripened in the autumn would often lie in the water througli the winter and lie in danger of losing its vitality ; but it reaches i1m> giiniiiii alt'-i- tlie Wiitrr Ikis lallru in the swamps anrl Viefnre the exposed surtaeeol the gromld has liernnie liakrd hy Ihr Imt sun ul summer, that is, when it is just in the condition to insure the genniirttiLJU of seed. —Cli.' S. 74. Please note that these images are extracted from scanned page images that may have been digitally enhan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1912
