SPRUCE. 217 
Plate 8. Picea canadensis. White Spruce. 
Branch bearing staminate flower, one-half natural size. 2. Branch 
3. Anther, side view, en- 
larged. 4. Pollen grain, showing air sacs, enlarged. 5. Branch bearing 
ripened cones, one-half natural size. 6. Scale of cone with seeds attached, 
natural size. 7. Scale of cone, rear view, natural size. 8. Cross section of 
needle, enlarged. 9. General view of tree. 
1. 
tearing pistillate flower, one-half natural size. 
