OLEACE^E 



837 



Distribution. Arizona, rocky slopes of Oak Creek Canon about twenty miles south of 

 Flagstaff, Coconino County, and in Copper Canon, west of Camp Verde, Yavapai County. 



4. Fraxinus anomala S. Wats. 



Leaves mostly reduced to a single leaflet but occasionally 2 or 3-foiiolate, the leaflets 

 broad-ovate or orbicular, rounded or acute or rarely obcordate at apex, cuneate or cordate 

 at base, and entire, or sparingly crenately serrate above the middle, covered above when 

 they unfold with short pale hairs and pubescent beneath, and at maturity thin but rather 

 coriaceous, dark green above, paler below, l'-2' long and l'-2' wide, or when more than 

 one much smaller, with a broad rather conspicuous midrib and obscure veins, and when 

 solitary raised on a stout grooved petiole rusty-pubescent early in the season, becoming 



Fig, 741 



glabrous, and often 1 \' long, or short-petiolulate in the compound leaves. Flowers appear- 

 ing when the leaves are about two thirds grown, in short compact pubescent panicles, with 

 strap-shaped or lanceolate acute bracts |' long and covered with thick brown villose tomen- 

 tum, perfect or unisexual by the abortion of the stamens, the 2 forms occurring in the same 

 panicle; calyx cup-shaped, minutely 4-toothed; anthers linear-oblong, orange colored, raised 

 on slender filaments nearly as long as the stout columnar style. Fruit obovate, \' long, 

 the wing rounded and often deeply emarginate at apex, surrounding the short flattened 

 striately nerved body, and \' wide. 



A tree, 18-20 high, with a short trunk 6'-7' in diameter, stout contorted branches 

 forming a round-topped headend branchlets at first quadrangular, dark green tinged with 

 red and covered with pale pubescence, orange colored and puberulous in their first winter 

 and marked by elevated pale lenticels and narrow lunate leaf-scars, and in their second or 

 third year terete and ashy gray; often a low shrub, with numerous spreading stems. Win- 

 ter-buds: terminal broad-ovoid, acuminate or obtuse, covered with thick orange-colored 

 tomentum, and \'-\' long. Bark of the trunk dark brown slightly tinged with red, \' thick 

 and divided by shallow fissures into narrow ridges separating into small thin appressed 

 scales. Wood heavy, hard, close-grained, light brown, with thick lighter colored sapwood 

 of 30-50 layers of annual growth. 



Distribution. In the neighborhood of streams; valley of the McElmo River, southwest- 

 ern Colorado; Carriso Mountains, San Juan County, northwestern New Mexico; north- 

 eastern (Apache County), and the Grand Canon of the Colorado River, Coconino County* 

 Arizona; southern Utah to the Charleston Mountains, southwestern Nevada and adjacent 

 California (Inyo County). 



