. 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. Tourney's Ash 803 It has a gray, fissured bark, 4 cm. thick or less, and round twigs, which are smooth from the first, but the bud-scales are finely hairy. The leaves are either quite smooth or a little rusty-hairy along the veins on the under side; they have either 3 or 5 stalked, rather thick leaflets, which are lanceolate to oblong, or the end one obovate, pointed, wedge-shaped at the base, the upper surface dark green
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. 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. Tourney's Ash 803 It has a gray, fissured bark, 4 cm. thick or less, and round twigs, which are smooth from the first, but the bud-scales are finely hairy. The leaves are either quite smooth or a little rusty-hairy along the veins on the under side; they have either 3 or 5 stalked, rather thick leaflets, which are lanceolate to oblong, or the end one obovate, pointed, wedge-shaped at the base, the upper surface dark green and shining, the lower surface bright green. The flowers are dioecious, the staminate ones with a very small calyx, the pistillate calyx much larger and sharply toothed. The samaras are spatulate-oblong, 3 to 4 cm. long, 5 to 7 mm. wide, the firm blunt or rather sharp-pointed wing about twice as long as the narrow somewhat flat- tened seed-bearing part, decurrent on its edges to much below the middle. The wood is light brown with a specific gravity of 0.58. It is said to be planted as a street tree in many parts of Mexico. 11. TOUMEY'S ASH — Fraxinus Toumeyi Britton, new species Tourney's ash inhabits canons and river valleys from western Texas to New Mexico and southern Cahfomia, extending into Sonora and Chihuahua. It is seldom more than 12 meters high and the trunk reaches a maximum thickness of about 2 dm. The bark is gray and rough. The round young twigs are either velvety, slightly hairy or quite smooth, and the leaves also vary from smooth to velvety on the under side. The usually 5 or 7 leaflets are thick, narrowly lanceolate, mostly long-pointed, toothed or en- tire-margined, yellow-green above, somewhat paler beneath, and stalked. The dioecious flowers appear with the leaves, the staminate ones having a minute calyx, the pistillate a rather large and 4-toothed calyx. The samaras are small, 2 to 3 cm. long, spatulate to hnear- spatulate, the blunt or notched wing ab