64 WEST-AMERICAN 



abundant in Washington and Oregon, and reaching 

 California; cones narrow, 2 to 3 inches long; leaves 

 dark green and shining above, white-lined below. 

 Bark mostly thin, finely checked, and dingy-white 

 outside, often quite dark. 



No. 6-ColOradO White Fir - A. concolor, Lindley. 

 Summits of the watershed of the Colorado River, 

 including Wyoming, Colorado, Utah, New Mexico 

 and Arizona, also a few trees in Lower California. 

 Leaves large, whitened both above and below. (One 

 of the "Silver Firs.") Bark usually whitened out- 

 side. Cones smaller. 



CALIFORNIA WHITE FIR. Var. Lowiana, Lemmon. 



Pinus Lowiana, McNab. 



Becoming large trees, common in the California 

 mountains at middle altitudes. Leaves whitened 

 below; bark very thick, deeply furrowed and dark, 

 often nearly black outside. 



Manufactured into butter boxes, firkins, etc., where 

 a scentless wood is desirable. 



No. 7 Bristle-Cone Fir A. venusta, Sargent. 



Abies bracteata, Nuttall. 



Extremely local, stranded high up in the Santa 

 Lucia Mountains of California. Cone-bracts with 

 the large midribs long, exserted, like stiff bristles, 1 

 to 2 inches long; leaves very large and long. Only 



