PINACE^ 



353 



dorsal surface bright green, deeply keeled ; ventral surface with 

 two broad white bands of stomata. Cones oblong, cylindrical, 

 2-4 in. long, light brown when mature ; scales, thin, papery, 

 oblong or oblong-oval, with unevenly toothed margins; bracts 



Fig. ^O.—PICEA SITCHENSIS. 



a, spray ; 6, branch ending in male catlcin ; c, shoot and leaves, from beneath ; d, leaf from above ; 



e, section of leaf ; /, stamens. 



lanceolate, about half as long as the scales. Seed with a wing 

 three or four times its length. 



P. sitchensis may be distinguished from the other flat-leaved 

 spruces by its stiffly spreading, prickly leaves, which are strongly 

 keeled on the dorsal surface, and blue-green in colour. 



A A 



