PICEA ENGELMANNI Engelm 



Engelmann Spruce, Rocky Mountain Spruce. 



TRANSVERSE SECTION 



RADIAL SECTION. 



TANGENTIAL SECTION 



Tanne von Engelmann. 



Sapin d'Engelmann, 



Abeto de Engelmann, 



made by Romeyn B. Hough, B. A., Lwvi 



