BLUE SPRUCE. SILVER SPRUCE. 



Picea Pairyana l^AiiJre) Sarg.' 



Fiff. 2j. I'ratichleU with leaves and mature cones, i ; iletaeheJ scales, upper side itowaids apoxt 

 showing seeds, j; do, under siile (towards steml, sliMwin;-: hract, ,; ; sterile hranchlets, 4; hrauchlet 

 from which lca\es ha\e heen remoxed, macnitied to ^hmv L;lahrous nature, iK-rsistent liases of 

 leases, etc., 5, 



21. Trunk Hitli foliage at hase and J-lt, rule. Rocky Mountains, Colo. 



25. \\"ood structure magnified 15 diameters. 



