G94) CLASSIFICATION AND DESCRIPTION 131 
5. Picea pingens, Eng. (SILVER 
Spruce.) Leaves 44 to 1 in. long, 
broad, rigid, stout, sharply acute, usu- 
ally curved, pale green above, silvery- 
glaucous beneath, on smooth and shin- 
ing branchlets. Cones very abundant, 
3 to 5 in. long, cylindric, with elon- 
gated, undulated, retuse scales. A 
strictly conical tree with spreading 
branches and thick, smooth, gray bark. 
Sometimes cultivated; from the Rocky 
Moun- 
tains. 
Hardy. 
P. pingens, 
6. Picea Morinda, Link. (Himana- 
P. Morinda. 
north of Washington except in sheltered positions. 
P. orientalis. 
YAN SPRUCE.) Leaves 1 to 2 in. long, 
very sharply acute, pale green color, 
spreading, 4-sided, straight, rigid, 
slightly glaucous beneath; branches 
horizontal; branchlets remotely ver- 
ticillate, numerous, drooping, with 
light-colored bark. Cones 6 to 7 
in. long, ovate-oblong ; scales light 
brown, oblong, entire, smooth, loosely 
imbricated. A tall 
tree, cultivated 
from eastern Asia 
and not hardy 
7. Picea Alcéquina, Lindl. 
(ALcocr’s SpRucE.) Leaves 14 
to 34 in. long, crowded, some- 
what 4-sided, flattish, reeurv- 
ed, obtusely rounded at tip, 
deep green above, whitish or 
yellowish below. Cones 2 to 
3 in. long, 1 in. in diameter, 
reddish fawn-color, with very 
persistent scales; scales 
wedge-shaped at base, rounded at tip. A large 
treefrom Japan; fullyhardy asfar north as Mass. 
8. Picea orientalis, L. (EasTERN oR ORI- 
ENTAL SPRUCE.) Leaves very short, 14 in. long, 
