. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. MOUNTAIN MAPLE Gr/i'.i-. âFive-lobed, lobes obovate, downy, much shorter than the petals ; disk annular. Corolla.âPetals fi\'e, linear-spatulate, greenish yellow, imbricate in bud. Staniftis. â Seven to ei.^ht, inserted on the disk, filaments thread- like, exserted in the sterile and abortive m the fertile flowers ; an- thers oblong, attached at base, introrse, two-celled ; cells opening longitudinally. I'istil.â0\'ary superior, tomentose, two-lobed, two-celled, com- pressed contrary to
. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. MOUNTAIN MAPLE Gr/i'.i-. âFive-lobed, lobes obovate, downy, much shorter than the petals ; disk annular. Corolla.âPetals fi\'e, linear-spatulate, greenish yellow, imbricate in bud. Staniftis. â Seven to ei.^ht, inserted on the disk, filaments thread- like, exserted in the sterile and abortive m the fertile flowers ; an- thers oblong, attached at base, introrse, two-celled ; cells opening longitudinally. I'istil.â0\'ary superior, tomentose, two-lobed, two-celled, com- pressed contrary to the dissepiment, wing margined ; style colum- nar ; stigma two-lobed. Ovules two in each cell, one of which aborts. In sterile flowers the pistil becomes a tuft of white hairs. Fnilt.âTwo samaras united, forming a maple key ; bright red in July, brown in autumn ; smooth, borne in a pendulous raceme. Wings more or less divergent. Seeds dark brown. September. Cotyledons thick and fleshy. The Motintain Maple is another example of a tree that has accepted its home in the shade of other trees. It grows on moist rocky hillsides and ranges across the continent westward to the Rocky Mountains, northward to the valley of the St. Lawrence River, and southward to Georgia. At the north it is a shrub, often seen growing by the side of a mountain road. It is our one maple that bears an upright raceme of flowers, but when the flowers have given place to fruit the raceme droops. The fruits of all the maples are very similar. An acorn is no more the char- acteristic fruit of the oaks than the maple key is of the maples. This is a double samara, composed of two carpels, separ- able from a small persistent axis ; these carpels are compressed laterally, and each is produced into a reticulated wing. These wings are thick on the lower mar- gin, but very thin and papery on the upper. The keys do not fly as they would were they better balanced, but they 65. Keys of Mountain Maple, â _-Vt'tT spi
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
