112 SILVA OF NORTH AMERICA. SALICACEZ. 
Montreal, Canada,’ and Cayuga County, New York,’ to the valley of the upper Saskatchewan,’ south- 
ward to Ohio and Missouri, and westward over the great plains and through the Rocky Mountains 
from southwestern Texas * to Oregon, Washington, and British Columbia; comparatively rare in the 
east, it becomes abundant in the region about the mouth of the Ohio River, where it grows with Salix 
nigra ; farther west it replaces that tree and is the common arborescent Willow along the banks of the 
rivers which flow eastward from the Rocky Mountains, and in all the central mountain region of the 
continent. Still imperfectly known in the territory west of the Rocky Mountains, Salix amygdaloides 
is probably less common there than on streams flowing toward the Gulf of Mexico. 
The wood of Salix amygdaloides is light, soft, not strong, and close-grained ; it contains numerous 
thin medullary rays, and is light brown, with thick nearly white sapwood. The specific gravity of the 
absolutely dry wood is 0.4509, a cubic foot weighing 28.10 pounds. 
1 Salix amygdaloides was discovered at Chateaugay in the Prov- 3 Macoun, Cat. Can. Pl. 444. 
ince of Quebec by Mr. J. G. Jack, in August, 1894. * Coulter, Contrib. U. S. Nat. Herb. ii. 419 (Man. Pl. W. Texas). 
2 Dudley, Bull. Cornell University, ii. 87 (Cayuga Fi.). 
Mi y yg 
EXPLANATION OF THE PLATE. 
Prats CCCCLXVII. Saurx amya@paLorpes. 
. A flowering branch of the staminate tree, natural size. 
- A staminate flower with its scale, front view, enlarged. 
A flowering branch of the pistillate tree, natural size. 
. A pistillate flower with its scale, front view, enlarged. 
. A fruiting branch, natural size. 
A capsule, enlarged. 
A winter branch, natural size. 
. A bud and leaf-scar, enlarged. 
wCONA TP WN 
. A stipule of a vigorous shoot, natural size. 
