502 SALICACEAE. 



23. Salix phylicifolia L. Tea-leaved 



Willow. (Fig. 1195.) 

 Sali.r phylicifolia L. Sp. PI. 1016. 1753. 



A shrub i-io high, much branched, the twigs 

 glabrous, dark purple-green, sometimes glaucous. 

 Leaves oblong, lanceolate or elliptic, acute or ob- 

 tuse at the apex, minutely repand-crenulate or 

 entire, narrowed at the base, bright green and 

 shining above, pale and glaucous beneath, i}^'-^' 

 long, %'-!' wide; petioles 3 // -8 // long; stipules 

 minute, fugacious, or wanting; aments sessile, 

 sparingly leafy -bracted at the base, dense, oblong- 

 cylindric, the staminate \ f or less long, the pistil- 

 late i / -2 / long in fruit; scales villous, persistent; 

 stamens 2; filaments glabrous; style rather longer 

 than the stigmas; capsule conic, acute, pubescent 

 or tonientose, 2^" long, much longer than its 

 pedicel. 



Swamps, Labrador to Manitoba and the White Moun- 

 tains of New Hampshire. Also in Europe. Summer. 



24. Salix Brdwnii Bebb. Robert Brown's Willow. (Fig. 1196.) 



Salix arctica R. Br. Ross' Vov. cxliv. 1819. Not Pall. 

 Salix Brow nii Bebb, Coult. Bot. Gaz. 14: 115. 1889. 



A low, much branched shrub, the twigs 4- 

 angled, slender. Leaves oblong or lanceolate, 

 glabrous or sometimes ciliolate, acute or the lower 

 obtuse at the apex, entire or rarely with a few- 

 minute distant teeth, narrowed at the base, 

 short-petioled, i / -2 / long, 3 // -8 // wide, remaining 

 green in drying, the lower surface pale or glaucous, 

 the margins not revolute; petioles only \"-$" 

 long; stipules narrow, deciduous; aments borne 

 on short leafy branches, the pistillate i / -2j4 / long 

 in fruit; scales villous, persistent; obovate, ob- 

 tuse, green or black-tipped; stamens 2; filaments 

 glabrous; style filiform, much longer than the 

 stigmas; capsule ovoid-conic, tomentose, short- 

 pedicelled, acute, about i%" long. 



Labrador to Alaska, south to Quebec, and in the 

 Rocky Mountains to Colorado. Summer. 



^~-i 7\ 



25. Salix arctica Pall. Arctic Willow. 

 Ground Willow. (Fig. 1197.) 



Salix arctica Pall. Fl. Ross, i: Part 2, 86. 1788. 



A low branching shrub, the twigs terete or 

 nearly so. Leaves glabrous, elliptic or broadly 

 obovate, entire, obtuse and usually rounded at 

 the apex, narrowed or rounded at the base, long- 

 petioled, pale and glaucous beneath, i'-2 / long, 

 l /t'-\ l /t f wide; petioles slender, ^'-ifr' long; 

 aments borne at the ends of short leafy branches,, 

 very dense, the pistillate i / -2 / long in fruit; scales 

 dark purple, obovate, obtuse, densely white-vil- 

 lous, persistent; stamens 2; filaments glabrous; 

 style filiform, longer than the stigmas; capsule 

 conic, villous, very short-pedicelled. 



Arctic America and Asia. Summer. 



