SaJix. SALICACE.E. 85 



or 3) lines broad ; margin remotely mucronate-dentate or sometimes entire ; stipules 

 very early deciduous : aments linear-cylindrical, borne on lateral leafy branchlets of 

 tlie season, often clustered at the extremity : scales yellowish, villous, dentate, 

 deciduous : capsules oblong-conical, obtuse, shortly pedicelled, usually tomentose ; 

 stigmas large, sessile. Anders. Sal. Monogr. 54, fig. 35; DC. Prodr. xvi 2 . 214. 

 S. macrosfac/t>/ft & tfuviatilis, Nutt. Sylva, i. 72, 73. 



Yar. argyrophylla, Anders; Leaves and capsules clothed with a lustrous silky 

 tomentum. S. argophylla, Nutt. Sylva, i. 71, t. 20. S. brachi/carpa, Nutt. 1. c. 691 



Var. exigua, Bebb. Leaves narrowly linear, 2 or 3 inches long, less than a line 

 wide. 3. exigua, Nutt. Sylva, i. 75. 



A frequent and widely distributed species, along streams, rooting extensively in alluvial de- 

 posits, usually forming dense clamps, 3 to 15 feet high. Exceedingly variable, especially at the 

 west. From California to Texas, the Saskatchewan, and the Northern States. 



5. S. sessilifolia, Nutt. Leaves sessile, lanceolate, entire or remotely mucro- 

 nate-serrate, especially near the very acute apex, grayish tomentose or softly villous 

 on both sides, becoming nearly smooth ; stipules acute : aments elongated-cylindri- 

 cal, densely flowered, terminating short leafy branchlets ; scales oblanceolate, villous : 

 capsules more or less tapering from an ovate base, sessile or nearly so, densely pilose 

 Avhen young : style short but distinct ; stigmas deeply bifid with linear lobes. 

 Sylva, i. 68 ; Anders. Sal. Monogr. 55, fig. 36, and DC. Prodr. xvi 2 . 214. 



Var. Hindsiana, Anders. Leaves narrowly lanceolate, about an inch and a half 

 long by 1 or 2 lines wide, very acute at each end, entire, opaquely pubescent 011 

 both sides : aments short (an inch long), thick and densely flowered : capsules 

 mostly tapering to a beak. Sal. Bor.-Am. 11. S. Hindsiana, Benth. PI. Hartw. 

 335 ; Anders. Sal. Monogr. 56, fig. 37 (poor), and DC. Prodr. xvi 2 . 215 ; Torrey, 

 Pacif. R. Rep. iv. 138. 



The typical form from the northern part of the State and common in Oregon ; the variety Hind- 

 siana in the Sacramento Valley (Hartivcy, Bigclow, Newbcrnj), and Coast Ranges from Santa Rosa 

 to Ukiah, Bolandcr, KcUocjcj & Harford. As here understood S. sessilifolia is distinguished from 

 S. longifolia mainly by the linear lobes of the stigma. The leaves have a peculiar lanceolate out- 

 line and hoary pubescence, but vary much in width, affording no distinction between the more 

 northern broad-leaved type and the variety, which is the prevailing form in California : nor do we 

 find in the shape of the capsules, or aments, any characters which are not equally inconstant. 



S. NEVADENSIS, Watson (Amer. Naturalist, vii. 302), an imperfectly known species of West- 

 ern Nevada ( Watson, Wheeler), is a low slender bush with the yellowish silky-pubescent leaves 

 still smaller than in S. sessilifolia, var. Hindsiana, short slender aments (a half inch long), mostly 

 glabrous scales, and smooth slender ovaries with short thick stigmas. Perhaps a reduced form of 

 /S'. longifolia. 



6. S. taxifolia, HBK. A shrub, 5 to 6 feet high, with short divaricate branches 

 thickly set with numerous subdistichous yew-like leaves, which are 3 to 6 lines 

 long, a line wide, acute, obsoletely denticulate and silky-pubescent : aments oblong, 

 densely flowered, terminating the branchlets, usually clustered ; scales obovate, cili- 

 ate on the margin : capsules sessile, ovate-conical : stigmas bifid. Anders. Sal. 

 Monogr. 57, fig. 38, and DC. Prodr. xvi 2 . 215. S. microphylla, Schlect. ; Hook. & 

 Am. Bot. Beechey, 310, t. 70. 



"California" (Coulter, n. 651), but the locality is uncertain. It is found in New Mexico 

 (n. 669, Wright), and doubtless occurs within our southern border, being the common species of 

 the LonyifolicK group in Mexico. 



3. Stamens 2 : scales persistent, darker at the apex. Shrubs or small trees. 



* Capsules glabrous. 



7. S. cordata, Muhl. Leaves oblong-lanceolate, acuminate, cordate or acute at 

 base, sharply serrate, glabrous (usually more or less silky when young), paler and 

 reticulate-veined beneath ; stipules semilunar, dentate or small and nearly entire : 

 aments leafy at base, cylindrical, the fertile elongating in fruit : scales dark, villous 



