212 



ABIETINEjE. 



[PAJIT I. 



p. Sabni and P. macrocarpa, which have long, 



MM^ 



slender, drooping 

 leaves, and very- 

 large hooked cones. 

 The pines which 

 have five leaves in 

 a sheath, include, 

 among others, the 

 Weymouth Pine 

 (P. Strobus), the 

 cones of which are 

 long, narrow, and 

 drooping (see j^(jf. 

 95); P. Lamher- 

 tiana^ which has 

 cones above a foot long ; and P. Cemhra^ which 

 has an oval cone, the scales of which are con- 

 cave, and the seeds without wings. 



Fig. 95. — Weymouth Pine (P. strobus). 



THE GENUS ABIES. THE SPRUCE FIR. 



This genus includes all the Spruce Firs, and 

 they are readily distin- 

 guished from the pines by 

 their drooping cones (see 

 a in Jig. 96), the scales of 

 which are not thickened at 

 the tip, but drawn out into 

 a thin brittle membrane ; 

 and their leaves, which do 

 not grow erect in sheaths, 



Fig. 96.- 



Spruce Fir {Abies 

 excelsa). 



