Leaves lanceolate, gradually acuminate and long-pointed at apex, cuneate at base, finely serrate, occasionally slightly falcate, glabrous, yellow-green on the upper surface, pale on the lower surface, 1½′—2′ long, ¼′—⅓′ wide, and on vigorous summer shoots sometimes 4′ or 5′ long and ½′ wide; petioles slender, glabrous, ¼′—⅓′ in length. Flowers and Fruit as in the species. A small or large tree best distinguished from _S. amygdaloides_ by the distinctly yellow or yellowish brown glabrous branchlets. Distribution. Barstow, Ward County, common along the Rio Grande near El Paso and at Belon, El Paso County, and on Amarillo Creek, Potter County, western Texas; through southern New Mexico to the Sacramento Mountains, Otero County. 5. Salix Bonplandiana var. Toumeyi Schn. _Salix Toumeyi._ Britt. [Illustration: Fig. 139] Leaves 4′—6′ long, ½′—¾′ wide, linear-lanceolate to oblong-lanceolate, acuminate with a long slender point at apex, gradually narrowed and often unequal at the cuneate base, obscurely serrate with glandular teeth, or entire with revolute margins, thick and firm, reticulate-venulose, yellow-green and lustrous above, silvery white below, with a broad yellow midrib; falling irregularly during the winter; petioles stout, grooved, reddish; stipules ovate, rounded, slightly undulate, thin and scarious, ⅛′—¼′ broad, often persistent during the summer. Flowers: aments on leafy branchlets, cylindric, erect, slender, short-stalked, the staminate 1′—1½′ long and somewhat longer than the pistillate; scales broadly obovate, rounded at the apex, light yellow, villose on the outer surface and glabrous or slightly hairy above the middle on the inner surface; stamens usually 3, with free filaments slightly hairy at the base; ovary slender, oblong-conic, short-stalked, glabrous, with nearly sessile much-thickened club-shaped stigmas, sometimes nearly encircled below by the large broad ventral gland. Fruit ovoid-conic, rounded at base, light reddish yellow. A tree, rarely more than 30° high, with a trunk 12′—15′ in diameter, slender erect and spreading branches often pendulous at the ends, forming a broad round-topped head, and slender glabrous branchlets marked with occasional pale lenticels, light yellow, becoming light or dark red-brown and lustrous, and paler orange-brown in their second year. Winter-buds narrowly ovoid, long-pointed, more or less falcate, bright red-brown, lustrous, ¼′ long. Bark ½′—¾′ thick, dark brown or nearly black, and deeply divided by narrow fissures into broad flat ridges separating on the surface into closely appressed scales. Distribution. Banks of streams in the cañons of the mountains of central and southern Arizona (Sicamore Cañon near Flagstaff and Sabino Cañon, Santa Catalina Mountains); and southwestern New Mexico (cañon, Saint Louis Mountains, Grant County); in Chihuahua, Sonora and Lower California.