Bui. 327, U. S. Dept. of Agriculture. 
Plate IX. 
Abies balsamea: Foliage and Ripe Cone. 
a, Lower side of cone scales with bracts; b, upper side of cone scale with one seed in place and 
upper (right) and lower sides of seeds with wings; c, central woody axis of cone from which 
seed-bearing scales have fallen. 
