186 



ABIES LASIOCAKPA HOOK. AND ITS ALLIES. 



their sliglitly elevated summits furnished with a strong mucro ; 

 seeds large, the wing covering nearly the whole surface of the 

 scale ; sterile aments 2 inches long, 3 lines in diameter, marked 

 longitudinally and somewhat spirally by the dark centres of the 

 otherwise Hght brown mucronate scales." — ' Collected Descriptions 

 of ConiferEe,' Engelmann, 'Botanical Works,' p. 382. 



Tree of A. hifolia {? suhalpina) on Mount Hood, Oregon. 



The figure (p. 137) was taken from a photograph of A. suhal/pina 

 Engelmann, forwarded from Colorado to the present writer by 

 Dr. Engelmann himself, together with outline sketches of the 

 leaves, cones, leaf-section, scale and bract, all of which agree 



