IP s t e I 5 i a 185 



Bracts of cone oblong-ovate or rhom- 



boidal, gradually narrowed into a 



long slender tip. Cones very 



large. Abies am ah His 



Bracts of mature cone longer than the scales, 



exserted, leaves tetragonal or flattened 



and grooved above. Abies nobilis 



Abies lasiocarpa (Hooker) Nuttall, Sylva. 3: 



138. 1849. Balsam Fir. 

 A tree with thin, smooth, pale gray bark, 

 becomins: somewhat thickened and roughened 

 with age; leaves crowded, spreading, blue-green, 

 flat, grooved above, usually rounded at the apex, 

 acute on cone-bearing branches, 1-4 centimeters 

 long, stomatiferous on both sides, with resin 

 ducts enclosed by the mesophyll; cones purple, 

 oblong-cylindrical, 6-10 centimeters long, the 

 scales two to three times as long as the erose, 

 obtuse or truncate, abruptly acuminate bracts; 

 seeds about 5 millimeters long, with broad pur- 

 ple wings. Coast mountains of Alaska, east to 

 the Rocky Mountains, and south to Oregon, 

 Colorado and Arizona. 



This tree has not been reported from Van- 



