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58.—(Fraxinus pistaciefolia, Torrey.) 

A small but rather abundant ash occurring along streams and on 
rocky plains, often growing in the crevices of rocks where there is but 
little soil. It ranges through southern New Mexico (southern and east- 
ern Arizoua; also in southern Nevada, in the mountains of western 
Texas, and south into Mexico). Thirty to 40 feet, with a diameter rarely 
more than 1 foot. The timber is heavy, coarse-grained, and decays rap- 
idly, but is apparently useful for many of the same purposes as the 
eastern White Ash; sometimes employed for wagon-stock, handles, ete. 
Description.—Leaves compound, with from 2} to 33 pairs of leaflets, the latter vary- 
ing much in size and form; 1 to 44 inches long, $ to 2 inches wide, ovate to narrowly 
iance-shaped ; margin sometimes entire, but chiefly with short, shallow, distant teeth ; 
smooth above and below, but latter surface often downy, the veins always more or less 
so, as also are the young shoots and leaf-stems. Seeds % to 12 inches long, narrow, 
with a spatulate wing at the end, which is rather broadly notched, rounded, or with 
sharp point; abundant. Branches round. 
59.—RED ASH. (Fraxinus pubescens, Lam.) 
A rather small tree, 30 to 40 feet in height, with a diameter seldom 
more than 14 feet; very rare in the Rocky Mountain region (being found 
chiefly in the northern and Atlantic States); generally growing along 
water-courses and in swampy situations. The wood is rather heavy, 
hard, and strong, but large timber is often brittle and much inferior to 
that of the White Ash, though occasionally used for the same purposes 
as the latter. 7 
Description.—Leaves compound with 33 to 44 (commonly the former) pairs of leaf- 
lets, varying in length from 3 to 5 inches, and in width from 1 to nearly 2 inches; 
evate to oblong—lance-shaped, with rounded base and rather long, thin point; margin 
chiefiy entire, but sometimes with shallow or indistinct teeth; smooth above and 
woolly beneath; leaf-stems and young shoots rusty-velvety. Seed 1} to 2 inches long, 
narrow and pointed at the base, broadening into a narrow wing above § of an inch or 
less in width. Freshly parted bark of the branches reddish. 
60.—GREEN ASH. (Fraxinus viridis, Michx. f.) 
A middle-sized tree of considerable importance on account of its 
adaptability to various situations, though in its natural state found 
mostly in rather moist soil of bottoms and along streams. It occurs in 
the eastern Rocky Mountain ranges of Montana, Wahsatch Mountains 
(in central Utah), and in the ranges of eastern and northern Arizona 
(eastward it is found along the Atlantic coast and north of the United 
States boundary’. Forty to 60 feetin height and 1 to 1} feet in diameter. 
The wood is heavy, hard, and strong, often coarse-grained, and although 
generally inferior in quality to that of the White Ash, it is used as a 
substitute for the latter. 
Descriplion.—Leaves compound, with 24 to 44 pairs of leaflets, which are 2 to 5$ 
inches long and from } to 1} inches wide; ovate, oblong-ovate to lance-shaped, often — 
with long tapering point, sometimes rather wedge-shaped or rounded at the base’ a. 


