497 



WILLOW FAMILY. 

 8. Salix purpurea L. Purple Willow. -Fig. 1180.) 



Sali.i /ir/> urea L. Sp. PI. 1017. 1753. 



A slender shrub or small tree, with purplish flex- 

 ible twigs, maximum height about 12; branches 

 ot'ten trailing; bark smooth and very bitter. Leaves 

 oblanceolate or spatulate, acute, serrulate, narrowed 

 at the base, short-petioled, glabrous, green above, 

 paler and somewhat glaucous beneath, i %'-$' long, 

 l" wide, some of them commonly subop- 

 e; stipules minute; petioles i // -2 // long, not 

 glandular; aments appearing before the leaves, 

 ilen>e, leafy-bracted at the base, the staminate 

 about V long, the pistillate i / -2 / long, sessile or 

 nearly so; stamens 2; filaments and sometimes 

 also the anthers united, pubescent; scales purple, 

 persistent; stigmas very nearly sessile; capsules 

 ovoid-conic, obtuse, tomentose, 2^" long. 



Sparingly escaped from cultivation in the Atlantic 

 Native of Europe. Also called Bitter, Rose 

 ami Whipcord Willow. April-May. 



9. Salix fluviatilis Nutt. Sandbar Willow. River-bank Willow. 'Fig. 1181.) 



Salix longifolia Muhl. Neuc Sell rift. C.i-v Nat. Fr. Ber- 

 lin, 4: 238. p/.6./.6. 1803. Not I..im. i 

 Salix jluviattlit Niitt. Sylva, i: 73. ; 



A much-branched shrub, 2-i2 high, forming 

 thickets, or sometimes a slender tree, 2o-3o tall, awl 

 with a trunk i in diameter, the young foliage silky- 

 pubescent, the mature leaves glabrous, or nearly so, 

 those of seedlings pinnately dentate or loljed. Leaves 

 linear-lanceolate or linear-oblong, 2^-4' long, *%"- 

 5" wide, acuminate, remotely denticulate with some- 

 what .spreading teeth, short -petioled, bright green; 

 petioles not glandular; stipules minute or none; 

 aments on short, leafy branches, linear-cylindric, the 

 staminate dense, \'-\Yt' long, the pistillate looser, 

 about 2' long in fruit; scales deciduous; stamens 2; 

 filaments pubescent, distinct; stigmas broad, sessile; 

 capsule ovoid-conic, glabrous or silky, about 2" long. 

 Along streams and lakes, Quel*. to tin- North wr-t 

 Territory and Oregon, south to Virpinia, Kentucky and 

 New Mexico. Wood soft, reddish-brown; weight per 

 cubic foot 31 Ibs. April-May. 



10. Salix reticulata L,. Net-veined 

 Willow. (Fig. 1182.) 



Sali\ reticulata L- Sp. PI. 1018. 1753. 



A procumbent shrub, $'-10' high, often sending 

 out roots from the twigs, the young shoots 4-sided, 

 purple-green. Leaves elliptic or obovate, thick, ob- 

 tuse, narrowed, rounded or subcordate at the base, 

 slender-petioled, glabrous or somewhat silky-pubes- 

 cent when young, dark green above, not shining, 

 glaucous and strongly reticulate-veined beneath, i'- 

 2 f long; petioles 4 // -i2 // long, channeled, not glan- 

 dular; leaves obscurely crenulate or entire; stipules 

 oblong, obtuse; aments terminal, long-stalked, 

 dense; scales obtuse; stamens 2; filaments distinct, 

 pubescent at the base; stigmas sessile; capsule ovoid- 

 . sessile, glabrous or pubescent, about 3" long. 



Labrador and Quebec to Alaska, south in the Rockv 

 Mountains to Colorado. Also in northern Europe and 

 Asia. June. 



