. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. 644 The Maples. Fig. 593- — Dwarf Maple. across, 3-lobed or 5-lobed, or often 3-parted, rather dark green above, and apple-green on the under side, the lobes pointed or blunt, sharply toothed, the middle lobe narrowed at the base, rhombic in outline. The flowers are mostly dioecious, in small sessile or short- stalked corymbs or corymb-hke racemes, open- ing in May; the sepals are blunt, oblong or ob- long-spatulate, peta
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. 644 The Maples. Fig. 593- — Dwarf Maple. across, 3-lobed or 5-lobed, or often 3-parted, rather dark green above, and apple-green on the under side, the lobes pointed or blunt, sharply toothed, the middle lobe narrowed at the base, rhombic in outline. The flowers are mostly dioecious, in small sessile or short- stalked corymbs or corymb-hke racemes, open- ing in May; the sepals are blunt, oblong or ob- long-spatulate, petal-hke; the petals are oblong or linear-oblong, yellow-green, and vary from half as long to about the length of the sepals; the stamens, even those of the sterile flowers, are not longer than the sepals; the samaras are smooth, shining, to 3 cm. long, more or less diverging, the wing 8 to 12 mm. wide. The wood is close-grained, light brown and hard, with a specific gravity of about ; it is not of commercial importance. 7. DOUGLAS' MAPLE —Acer Donglasii Hooker Douglas' maple much resembles the Dwarf maple, and has been considered by several authors as not at all different from that species, but a study of many specimens of both leads us to re- gard the two as distinct. It ranges from Alaska through British Co- lumbia to Alberta, Montana, Idaho, and Oregon. While usually a bush, it sometimes attains the habit of a tree and reaches a height of about 10 meters. Tie bark is smooth and red- brown, the twigs purple. The leaves differ from those of the Dwarf maple in being relatively large, often 8 to 10 cm. across, and as a rule are less deeply lobed, although sometimes trifoHolate; the middle lobe is, how-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Shafer, John
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