SPRUCE. 



151 



Plate 9. Picea manana. Black Spruce. 



1. Branch-bearing staminate flowers, one-half natural size. 2. Branch bear- 

 ing pistillate flowers, one-half natural size. 3. Anther, enlarged. 4. Scale of 

 pistillate flower, enlarged. 5. Branch bearing ripened cones, one-half natural 

 size. 6. Seeds, enlarged. 7. Scale, front view, natural size. 8. Scale, rear 

 view, natural size. 9. General view of tree as found in the muskegs of northern 

 Minnesota. 



