SALICACE^E 



157 



Usually a shrub, often making clumps of crowded slender erect stems generally destitute 

 of branches except near the top, rarely arborescent, with a height of 25, a trunk 12'-14' in 

 diameter, erect branches, and comparatively stout reddish brown branchlets becoming 

 olive-green in their second year and marked with narrow slightly raised leaf-scars. Winter- 

 buds acute, much-compressed, bright scarlet, very lustrous, about j' long. Bark thin, 

 smooth, dull gray. 



Distribution. Cold w r et bogs; Newfoundland and the coast of Labrador to the valley 

 of the Saskatchewan and the Mackenzie, and British Columbia, and to northern Maine, New 

 Hampshire, Vermont, New York, Michigan, and northeastern South Dakota; reported to 

 become arborescent only near Fort Kent on the St. John River, Aroostook, Maine. 



18. Salix amplifolia Cov. 



Leaves oval to broadly obovate, rounded or broadly pointed at apex, gradually or 

 abruptly narrowed at the cuneate base, dentate-serrulate or entire, densely villose when 

 they unfold, with long matted white hairs, at maturity nearly glabrous, pale yellow-green 

 above, slightly glaucous below, 2'-2|' long, l'-l' wide, with a midrib broad and hoary- 

 tomentose toward the base of the leaf and thin and glabrous above the middle; petioles 



Fig. 152 



slender, tomentose. Flowers: aments appearing about the middle of June, stout, peduncu- 

 late, tomentose, on leafy branchlets, the staminate l^'-2' long and shorter than the pis- 

 tillate; scales oblanceolate or lanceolate, dark brown or nearly black, covered with long pale 

 hairs; stamens 2, with slender elongated glabrous filaments; ovary ovoid-lanceolate, short- 

 stalked, glabrous or slightly pubescent, gradually narrowed into the elongated slender style 

 crowned with a 2-lobed slender stigma. Fruit ovoid-lanceolate, glabrous, short-stalked, 



\' long- 



A tree, occasionally 25 high, with a trunk a foot in diameter, and stout branchlets con- 

 spicuously roughened by the large elevated U-shaped leaf-scars, and marked by occasional 

 pale lenticels, coated at first with thick villose pubescence, becoming during their second 

 and third years dark dull reddish purple. 



Distribution. Sand dunes on the shores of Yakutat Bay and Disenchantment Bay, 

 Alaska. 



19. Salix alaxensis Cov. Feltleaf Willow. 



Leaves elliptic-lanceolate to obovate, acute, acuminate or occasionally rounded at apex, 

 gradually narrowed into a short thick petiole, coated above as they unfold with thin 

 pale deciduous tomentum and covered below with a thick mass of snowy white lustrous 



