. 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. 428 The Mountain Ashes fruit ripens in late autumn, is globose or slightly pear-shaped, 4 to 8 mm. in di- ameter and bright red, its flesh acidulous; seeds about 3 mm. long, angular, rounded at the top, sharp-pointed at the base. The wood is soft, close-grained, weak, and brown; its specific gravity is about At the North the tree is occasionally planted for ornament and shade, and deserves more extended use in the c
. 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. 428 The Mountain Ashes fruit ripens in late autumn, is globose or slightly pear-shaped, 4 to 8 mm. in di- ameter and bright red, its flesh acidulous; seeds about 3 mm. long, angular, rounded at the top, sharp-pointed at the base. The wood is soft, close-grained, weak, and brown; its specific gravity is about At the North the tree is occasionally planted for ornament and shade, and deserves more extended use in the cooler regions of our area. Yoimg shoots some- times bear leaves with deeply incised margins. The leaflets vary greatly in form. 2. ROWAN TREE—Sorbns Ancuparia Linnaeus This rapid growing tree, also called Mountain ash and Quick beam, is a native of Europe and Asia, extending far northward, where it becomes a small shrub. In our area it hcis long been planted for ornament, and has become spar- ingly naturalized in some of the north- eastern States and Canadian Provinces. Its maximum height is 18 meters, with a trunk diameter of 8 dm. The branches are stout and spread- ing, forming an orbicular head; the bark is smooth or somewhat scaly, 6 mm. thick, dark gray; the twigs are hairy, grayish brown; the sharp- pointed buds are softly woolly. The leaves are odd-pinnate, with hairy petioles, and 9 to 15 leaflets, which are. Fig. 374. — Rowan Tree. oblong to oblong-lanceolate, to cm. long, blimt or short pointed, the margin sharply toothed, except near the unequally rounded base, duU green above, paler beneath, hairy on both sides. The white flowers appear in June or July in com- pact woolly cymes, their calyx-lobes woolly; petals spreading, about 4 mm. across; stamens exserted, as long as the petals. The fruit is globose, about 10 mm. in diameter, bright red, and usually borne in great abundance. The wood is hard, fine-grained, Ught brown; its specific gravity is about
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