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TREES OF MINNESOTA. 
Plate 12. Abies balsamea. Balsam Fir. 
1. Branch bearing staminate flowers, one-half natural size. 2. Branch 
bearing pistillate flowers, one-half natural size. 3. Anther, open, rear view, 
enlarged. 4. Branch bearing mature cone, one-half natural size. 5. Branch 
bearing axes olf cones alter scales have fallen, one-half natural size. 6. 
Seeds with wings attached, natural size. 7. Seed, enlarged. 8. Scale ot 
cone, upper view, natural size. 9. Scale of cone, lower view, natural size. 
