. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus i. MAPLE FAMILY, 8. Acer glabrum Torr. Dwarf or Rocky Mountain Maple. Fig. 2811. Acer glabrum Torr. Ann. Lye. N. Y. 2: 172. 1826, Acer tripartitmn Nutt.; T. & G. Fl. N. A. i: 247. 1838. A shrub, or small tree, with maximum height of about 35° and trunk diameter of 12'. Leaves l'-3' long, often broader, glabrous on both sides, or puber- ulent when youn
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus i. MAPLE FAMILY, 8. Acer glabrum Torr. Dwarf or Rocky Mountain Maple. Fig. 2811. Acer glabrum Torr. Ann. Lye. N. Y. 2: 172. 1826, Acer tripartitmn Nutt.; T. & G. Fl. N. A. i: 247. 1838. A shrub, or small tree, with maximum height of about 35° and trunk diameter of 12'. Leaves l'-3' long, often broader, glabrous on both sides, or puber- ulent when young, 3-5-lobed, the lobes acute or obtusish, sharply serrate, the sinuses acute; flowers yellowish green, in numerous small lateral and term- inal sessile corymb-like racemes; pedicels short, gla- brous, erect or ascending; samaras glabrous, shin- ing, 9"-i5" long, little diverging; wing 4"-6" wide. Borders of streams and hillsides, northwestern Ne- braska to Montana and throughout the Rocky Mountain region, south to Arizona, west to the Sierra Nevada. Wood hard, light brown. Weight per cubic foot 37 lbs. Soft, shrubby or bark-maple. May. 9. Acer pennsylvcinicum L. Striped, Goose-foot or Northern Maple. Moosewood. Fig. 2812. Acer pennsylvanicum h. loss- ^753- Acer striatum Du Roi, Diss. Inaug. 58. 1771. A small tree, with maximum height of about 35° and trunk diameter of about 8', the smoothish green bark striped with darker bands. Leaves larger, often 6'-8' long, broadest above the middle, thin, glabrous above, sparingly pubescent beneath when young, slightly cor- date or truncate at the base, finely serrate or serrulate all around, 3-lobed near the apex, the lobes short and acuminate to a long tip; racemes terminal, narrow, drooping, 3'-4' long; flowers greenish yellow, 3"-4" broad; unfolding after the leaves; petals obovate; samaras glabrous, l' long, widely divergent, the wing 4"-5" wide. In rocky woods, Nova Scotia to Lake Sup
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
