G.94] 



CLASSIFICATION AND DESCRIPTION 



P. pungena. 



5. Picea pungens, Eng. (SILVER 

 SPRUCE.) Leaves j 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. 



6. Picea Morinda, Link. (HIMALA- 

 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 

 north of Washington except in sheltered positions. 



7. Plcea Alc6quina,Lindl. 

 ( ALCOCK'S SPRUCE. ) Leaves J^ 

 to % in. long, crowded, some- 

 what 4-sided, flattish, recurv- 

 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 p - 

 wedge-shaped at base, rounded at tip. A large 

 treefrom Japan; fully hardy as far north as Mass. 



8. Picea orientalis, L. (EASTERN OR ORI- 

 ENTAL SPRUCE.) Leaves very short, % in. long, 



P. Morinda. 



