GENUS 2. 



WILLOW FAMILY. 



603 



32. Salix vestita Pursh. Hairy Willow. 

 Fig. 1482. 



Salix vestita Pursh, Fl. Am. Sept. 610. 1814. 

 Salix Fernaldii Blankenship, Mont. Agric. Coll. Stud. 

 Bot. i : 46. 1905. 



A low shrub, similar to the preceding species, the 

 twigs 4-sided, green. Leaves obovate, thick, mostly 

 retuse or emarginate at the apex, slightly crenulate, 

 narrowed or rounded at the base, dark green and 

 glabrous above, persistently tomentose-silky beneath, 

 short-petioled, i'~3' long; petioles 2" -4" long, chan- 

 neled, not glandular ; aments small, terminal, un- 

 folding after the leaves, stalked; stamens 2; fila- 

 ments distinct; capsules narrowly ovoid-conic, sessile, 

 densely silky-tomentose, about 3" long. 



Labrador and Quebec to British Columbia and Mon- 

 tana. June. 



33. Salix Barclayi Anders. Barclay's Willow. Fig. 1483. 



S. Barclay! Anders. Ofv. Hancll. Vet. Akad. 1858 : 125. 1858. 

 Salix Barclayi latiii-scula Anders, in DC. Prodr. 16 : Part 2, 



255. 1868. 

 Salix latiuscula Anders. Vet. Acad. Handl. 6 1 : 165. 1867. 



A low shrub, with dark brown glabrous twigs, the 

 young shoots pubescent. Leaves obovate, oval, or oval- 

 lanceolate, short-pointed at the apex, very minutely 

 serrulate, floccose-pubescent when young, when mature 

 glabrous, bright green above, pale beneath, i'-2 r long, 

 i'-i" wide; petioles i"-2" long; stipules ovate, acute, 

 deciduous; aments unfolding with the leaves, borne 

 at the ends of short branches, dense, spreading or 

 erect, the staminate i' long, the pistillate 2'-3' long 

 in fruit; bracts persistent, slightly villous; stamens 2; 

 filaments distinct; capsule narrowly conic, tomentose 

 or glabrous, acute, 3" long; style longer than the 

 stigmas. 



Newfoundland and Quebec. Northwestern arctic Amer- 

 ica. Summer. 



34. Salix argyrocarpa Anders. Silver 

 Willow. Fig. 1484. 



5". argyrocarpa Anders. Mon. Sal. 107. /. 60. 1867. 



An erect or diffuse shrub, 6'-2 high, the twigs 

 dark green, nearly terete, shining. Leaves ob- 

 long or oblanceolate, acute at each end or the 

 lower obtuse, short-petioled, entire or crenu- 

 late, bright green and glabrous above, persist- 

 ently silvery-silky beneath, i'-2' long, 3 "-6" wide, 

 the margins slightly revolute ; aments unfolding 

 with the leaves, leafy at the base, dense, i' or less 

 long; bracts persistent, villous; stamens 2, dis- 

 tinct, their filaments glabrous; style slender, 

 longer than the stigmas ; capsule oblong-conic, 

 densely silvery, acute, i"-ij" long, about twice as 

 long as its pedicel. 



Labrador and Quebec to the mountains of Maine 

 and New Hampshire. Hybridizes with S. fhylici- 

 folia. June-July. 



