. 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. 798 The Ashes petals. The samaras are oblong to linear-oblong, or sometimes broader above than below the middle, to 5 cm. long, strongly striated longitudinally, the usually notched wing extending all around the seed-bearing part and about twice its length. Except in swampy ground the Black ash grows slowly. Its wood is coarse- grained and tough but not strong, dark brown in color, with a specific gravity of It
. 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. 798 The Ashes petals. The samaras are oblong to linear-oblong, or sometimes broader above than below the middle, to 5 cm. long, strongly striated longitudinally, the usually notched wing extending all around the seed-bearing part and about twice its length. Except in swampy ground the Black ash grows slowly. Its wood is coarse- grained and tough but not strong, dark brown in color, with a specific gravity of It is much used for fences, being durable in the soD, and in basket-making, cabinet-work and interior carpentry. 3. OREGON ASH — Fraxinns oregona Nuttall The Oregon ash inhabits the region from southern British Columbia to southern California, preferring rich soil in valleys, and sometimes becomes 25 meters high, with a trunk meters in diameter. The bark is gray-brown and fissured, 2 to 4 cm. thick. The young twigs and leaves are usually densely velvety, but often lose this character as they grow older, or are sometimes nearly smooth from the first. The leaves have 5, 7 or rarely 9 leaflets, which are ovate to elliptic, sessile or rarely short-stalked, to cm. long, blunt or sharp-pointed, and are usually without teeth, though the margins are sometimes a little scalloped. The flower clusters are bome at the leaf scars of the preceding year, and the staminate and pistillate flowers are usually, if not always, on different trees; the staminate flower has a very small 4-toothed calyx and 2 sta- mens with anthers rather shorter than those of the eastern Ashes; the pistillate calyx is larger'and its 4 teeth are incised. The samara is 5 cm. long or less, spatulate to nearly linear, the blunt wing decurrent on the somewhat flattened seed-bearing part to or below the middle. It is a tree of rapid growth and is much used for street and park planting on the Pacific coast; it is
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