134 SILVA OF NORTH AMERICA. SALICACEZ. 
cence and the aments are more thickly covered with silvery lustrous hairs, is var. eriocephala;* and a 
form with narrower leaves, more loosely flowered and less hairy aments, long styles, laciniately divided 
stigmas, and less pubescent capsules, is var. prinoides.” 
Salix discolor is a common inhabitant of moist meadows and the banks of streams and lakes, and 
is distributed from Nova Scotia to Manitoba,’ and southward in the United States to Delaware, southern 
Indiana and Illinois and northeastern Missouri. 
The wood of Salix discolor is light, soft, and close-grained ; itis brown streaked with orange, with 
lighter brown sapwood, and contains conspicuous medullary rays and bands of open ducts marking the 
layers of annual growth. The specific gravity of the absolutely dry wood is 0.4261, a cubic foot weigh- 
ing 26.55 pounds. 
Saliz discolor, subspec. eriocephala, var. rufescens, Andersson, 
Svensk. Vetensk. Akad. Handl. l. c. (1867). 
1 Salix discolor, subspec. eriocephala, Andersson, Svensk. Vetensk. 
Akad. Handi. ser. 4, vi. 85 (Monographia Salicum) (1867); De Can- 
dolle Prodr. xvi. pt. ii. 225.— Sargent, Forest Trees N. Am. 10th 2 Salix discolor, subspec. prinoides, Andersson, I. c. 86 (1867); De 
Census U. S. ix. 169. — Macoun, Cat. Can. Pl. 447.— Bebb, Brewer  Candolle, 1. c. — Emerson, J. c. ed. 2, 297. — Sargent, /. c.— Bebb, 
& Watson Gray’s Man. ed. 6, 482. i€: 
Salix eriocephala, Michaux, Fl. Bor.-Am. ii. 225 (1803). — 
Bigelow, Fl. Boston. 239.— Emerson, Trees Mass. 259 ; ed. 2, i. 
Salix prinoides, Pursh, Fl. Am. Sept. ii. 613 (1814). — Nuttall, 
Gen. ii. 231. — Poiret, Lam. Dict. Suppl. v. 67. — Sprengel, Syst. 
296, t. — Carey, Gray’s Man. 426.— Andersson, Ofvers. Vetensk. 
Akad. Forhandl. xv. 117 (Bidr. Nordam. Pilarter); Proc. Am. 
Acad. iv. 57. — Walpers, Ann. v. 746. 
Saliz crassa, Barratt, Sal. Amer. No. 7 (1840). 
Salix discolor, subspec. eriocephala, var. parviflora, Andersson, 
Svensk. Vetensk. Akad. Hand. l. c. 85 (1867). 
i. 102.— Forbes, Salict. Woburn. 79, t.— Koch, Sal. Europ. 
Comm. 46.— Loudon, Arb. Brit. iii. 1530, f. 1317, 1612, f. 40. — 
Hooker, Fi. Bor.-Am. ii. 150.— Emerson, Trees Mass. 259. — 
Dietrich, Syn. v. 419. 
8 Provancher, Fl. Canadienne, ii. 527. — Macoun, Cat. Can. Pl. 
447. 
EXPLANATION OF THE PLATE. 
Pirate CCCCLXXVIII. 
A flowering branch of the staminate tree, natural size. 
. A staminate flower with its scale, front view, enlarged. 
. A capsule, enlarged. 
OND TP WW EH 
SALIX DISCOLOR. 
A flowering branch of the pistillate tree, natural size. 
. A pistillate flower with its scale, front view, enlarged. 
A fruiting ament, natural size. 
A summer branch, natural size. 
. A winter branch, natural size. 
