SALICACE. 
SILVA OF NORTH AMERICA. 123 
SALIX FLUVIATILIS. 
Sand-bar Willow. 
LEAVES linear-lanceolate, usually green on both surfaces. 
Salix fluviatilis, Nuttall, Sylva, i. 73 (1842). — Sargent, 
Garden and Forest, viii. 463. 
Salix longifolia, Muehlenberg, Newe Schrift. Gesell. Nat. 
Fr. Berlin, iv. 238, t. 6, £ 6 (not Lamarck) (1803) ; 
Konig & Sims Ann. Bot. ii. 66, t. 5, £. 6. — Willdenow, 
Spec. iv. pt. ii. 670. — Persoon, Syn. ii. 600. — Wade, 
Salices, 119. — Pursh, Fl. Am. Sept. ii. 613. — Nuttall, 
Gen. ii. 231. — Torrey, Ann. Lyc. N. Y. ii. 248; Nicol- 
let’s Rep. 160; Fl. N. Y. ii. 209; Frémont’s Rep. 97; 
Emory’s Rep. 412; Sitgreaves’ Rep. 172; Bot. Mex. 
Bound. Surv. 204.— Hooker, Fl. Bor.-Am. ii. 149. — 
Barratt, Sal. Amer. No. 23. — Dietrich, Syn. v. 420. — 
Parry, Owen’s Rep. 618. — Andersson, Ofvers. Vetensk. 
Akad. Forhandl. xv. 116 (Bidr. Nordam. Pilarter) ; 
Proc. Am. Acad. iv. 55; Svensk. Vetensk. Akad. Handl. 
ser. 4, vi. 54, t. 4, f. 35 (Monographia Salicum) ; De Can- 
dolle Prodr. xvi. pt. ii. 214. — Walpers, Ann. v. 745. — 
Watson, King’s Rep. v. 324.— Bebb, Rothrock Wheel- 
er’s Rep. vi. 240; Brewer & Watson Bot. Cal. ii. 84; 
Coulter Man. Rocky Mt. Bot. 335; Watson & Coulter 
Gray’s Man. ed. 6, 482. — Ward, Bull. U. S. Nat. Mus. 
No. 22, 116 (Fl. Washington). — Sargent, Forest Trees 
N. Am. 10th Census U. S. ix. 168. — Dudley, Bull. Cor- 
nell University, ii. 89 (Cayuga Fl.). — Dippel, Handbd. 
Laubholzk. ii. 246, f. 115. — Koehne, Deutsche Dendr. 
91. —Coulter, Contrib. U. S. Nat. Herb. ii. 419 (Man. 
Pl. W. Texas). — Coville, Contrib. U. S. Nat. Herb. iv. 
199 (Bot. Death Valley Exped.).— Greene, Man. Bot. 
Bay Region, 299. — Holzinger, Contrib. U. S. Nat. Herb. 
iii. 251. 
Salix rubra, Richardson, Franklin Jour. Appx. No. 7, 765 
(not Hudson) (1823). 
Salix longifolia pedicellata, Andersson, Svensk. Vetensk. 
Akad. Handl. ser. 4, vi. 55, t. 4, £.35 (Monographia Sali- 
cum) (1867); De Candolle Prodr. xvi. pt. ii. 214.— 
Macoun, Rep. Geolog. Surv. Can. 1875-76, 210. 
Salix Nevadensis, Watson, Am. Nat. vii. 302 (1873) ; 
Cat. Pl. Wheeler, 17. 
A tree, usually about twenty feet in height, with a trunk only a few inches in diameter, and short 
slender erect branches, spreading by stoloniferous roots into broad thickets ; or occasionally sixty or 
seventy feet in height, with a trunk two feet in diameter; or often a shrub not more than five or six 
feet high. The bark of the trunk is from an eighth to a quarter of an inch in thickness, smooth, dark 
brown slightly tinged with red, and covered with small closely appressed irregularly shaped scales. The 
branchlets are slender, glabrous, ight or dark orange-color or purplish red, and rather darker after their 
first season. The winter-buds are narrowly ovate, acute, chestnut-brown, and about an eighth of an 
inch in length. The leaves are involute in the bud, linear-lanceolate, often somewhat falcate, gradually 
narrowed at both ends, long-pointed, and dentate with small remote spreading callous gland-tipped 
teeth ; when they unfold they are coated on the lower surface with soft lustrous silky caducous hairs, 
and at maturity are thin, glabrous, light yellow-green, darker on the upper than on the lower surface, 
from two to six inches long and from one eighth to one third of an inch wide, with yellow midribs raised 
and rounded on the upper side, slender arcuate primary veins, conspicuous reticulate veinlets, and stout 
grooved petioles from an eighth to a quarter of an inch in length. The stipules are ovate-lanceolate, 
foliaceous, about a quarter of an inch long, and deciduous. The aments are borne on stout peduncles 
covered with soft silky pale pubescence; their scales are obovate-oblong, entire, erose or sparingly 
dentate above the middle, light yellow-green, densely villous on the outer surface and slightly hairy on 
the inner; on the staminate plant they are oblong-cylindrical, about an inch long and a third of an 
inch broad, and terminal and axillary on short or elongated lateral branches whose leaves are often 
reduced to ovate acute scarious pubescent deciduous scales about a third of an inch long, the flowers 
of the terminal ament opening before those of the axillary aments; on the pistillate plant the aments 
are cylindrical, elongated, from two to three inches long, about a quarter of an inch broad, and terminal 
on leafy branches. The stamens are two in number, with free filaments slightly hairy at the very base. 
