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TREES OF MINNESOTA. 
Acer rubrum. Red Maple. 
Plate 54. 
1. Branch bearing staminate flowers, one-half natural size. 2. Branch 
bearing pistillate flowers, one-half natural size. 3. Staminate flower, en- 
larged. 4. VPistillate flower, enlarged. 5. Iruiting branch, one-half nat 
ural size. 6, Longitudinal section ot fruit, ome-hall natural size. 7. Lon- 
gitudinal section of seed, enlarged. 8 [Embryo, displayed, enlarged. 9. 
Winter branchlet, one-half natural size. 
