310 



TREES OF MINNESOTA. 



Plate 41. Morus alba tartanca. Russian Mulberry. 



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

 bearing pistillate flowers, one-half natural size. 3. Staminate flower-cluster, 

 enlarged. 4. Pistillate flower-cluster, natural size. 5. Staminate flower, en- 

 larged. 6. Pistillate flower, enlarged. 7. Longitudinal section of pistil, 

 enlarged. 8. Full grown lobed leaf, one-half natural size. 



