340 SALICACEAE 



Refs. SALIX SESSILIFOLIA Nuttall, Sylva, vol. 1, p. 68 (1842), type loc. mouth of the 

 Willamette Eiver, Nuttall S. parishiana Eowlee, Bull. Torr. Club. vol. 27, p. 249, (1900). 



5. S. longifolia Muhl. LONGLEAF WILLOW. Shrub 5 to 15 feet high with 

 bright green foliage ; leaves mostly glabrous, or sometimes minutely canescent, 

 lanceolate or linear, tapering to apex and to a short petiole at base, remotely 

 serrulate with cuspidate teeth, % to 5 inches long, 2 to 4 lines broad ; catkins 

 terminal on leafy branches; staminate catkins % to 1% inches long, 2 lines 

 thick ; pistillate catkins % to 1 inch long ; ovary pediceled or sometimes nearly 

 sessile, glabrous ; stigmas very short, sessile ; scales densely woolly ; capsule 

 glabrous; fruiting catkin l 1 /^ to 2^ inches long. 



Stream beds in valleys and foothills throughout the State and into the 

 mountains to 4,000 feet, north to the Klamath River (W.L.J. no. 2952) and far 

 eastward. 



Var. argyrophylla And. COYOTE WILLOW. Slender shrub, stem one from the 

 base, strictly erect or sometimes straggling, 4 to 12 feet high ; foliage lustrous 

 silvery or glabrescent and green; leaves linear, acute at apex or long-pointed, 

 entire, % to 2y 2 inches long, 1 to 2 lines wide; catkins on leafy peduncles; 

 staminate catkins % to li/g inches long, 3 lines thick, in bud usually conical, 

 the green-tipped scales often abruptly acute; pistillate catkins l /s to % inch 

 long, l!/2 to 2 lines thick ; ovary silky ; stigmas oblong, sessile, the top of the 

 ovary sometimes bulbous-dilated just below them ; capsule glabrescent, brown. 

 Stream beds, South Coast Ranges and northward to Oregon. Our descrip- 

 tion resting chiefly on Priest Valley plants (W.L.J. no. 2674) which in appear- 

 ance more nearly resemble S. sessilifolia. 



Refs. SALIX LONGIFOLIA Muhlenberg in Ges. Naturf. Fr. Neue Schr. vol. 4, p. 238 (1803). 

 S. fluviatilis Nuttall, Sylva, vol. 1, p. 73 (1842) is dubious. Nuttall collected his type on the 

 banks of the Columbia Eiver near the mouth of the Willamette. ' ' At the present time the 

 only species collected at or near that point are S. sessilifolia and S. exigua. There 



is no Nuttallian type to represent this species in the Philadelphia Academy and it is therefore 

 probably not in existence." C. V. Piper in litt., 1908. S. bolanderiana Eowlee, Bull. Torr. 

 Club. vol. 27, p. 257 (1900), with citation of Bolander's nos. 4958 (Yosemite Valley) and 

 5031 (Clarks, Merced Eiver) as part of type, but no. 5031 also cited under S. exigua virens 

 Eowlee, 1 c. p. 255, and no. 4958 under S. argophylla, p. 251, as if it were Brewer's number. 



Var. ARGYROPHYLLA Andersson, Monog. Sal. p. 55 (1867),- rests on Nuttall 's S. argopliylla. 

 The original specimens of S. argophylla Nuttall, Sylva, vol. 1, p. 71, t. 20 (1842), were 

 collected by Nuttall on the Boise Eiver, Idaho, near its confluence with the Snake. 



6. S. lasiolepis Benth. ARROYO WILLOW. Shrub or tree 10 to 18 or rarely 

 35 feet high, the trunk 3 to 7 inches in diameter with smooth bark or very 

 old trunks shallowly seamed; mature leaves oblong, obovate or linear, acute, 

 obscurely serrulate, dull green and glabrous above, white-pubescent or pale 

 beneath, 1% to 5 inches long, % to 1^ inches broad; petioles 1 to 8 lines long; 

 catkins appearing before the leaves, sessile, densely silky tomentose in the 

 bud, suberect ; scales dark ; staminate catkins % to 1% inches long, 5 to 6 lines 

 thick ; stamens 2, filaments glabrous, distinct or united to the middle ; pistillate 

 catkins % to 1 inch long, 3 to 4 lines thick, in fruit l 1 /^ to 2 1 / 4 inches long; 

 capsule glabrous or puberulent, short-pediceled. 



Coast Ranges, Sacramento and San Joaquin valleys and Sierra Nevada 

 foothills, northward to the Klamath River and southward to Southern and 

 Lower California. The most common willow in the foothill country throughout 

 the State, especially along summer-dry arroyos but also found on living 

 streams. Also called White Willow. 



Var. bigelovii Bebb. Leaves broadly obovate or cuneate-oblong, obtuse, 



