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TREES OF MINNESOTA. 



Plate 37. Ulmus pubescens. Slippery Elm. 



1. Flowering branch, one-half natural size. 2. Flower, enlarged. 3. Stamen, 

 enlarged. 4. Longitudinal section of flower, enlarged. 5. Longitudinal section 

 of pistil, enlarged, (i. Cross section of ovary, enlarged. 1. Fruiting branch, one- 

 half natural size. 8. Longitudinal section of fruit, one-half natural size. 9. 

 Seed, enlarged. 10. Longitudinal section of seed, enlarged. 11. Embryo, en- 

 larged. 12. A young branch with unfolding leaves, showing accrescent bud- 

 scales and stipules, one-half natural size. 13. Summer branch, one-half natural 

 size. 14. Winter branch, showing flower buds beginning to enlarge, one-half 

 natural size. 



Distribution. From Quebec, Ontario, Vermont and north- 

 ern New York west to Minnesota and south to Missouri and 

 Tennessee. 



In Minnesota frequent in the eastern part and extending into 

 the Minnesota Valley west at least to Montevideo, Chippewa 

 County. 



Propagation. Described under genus Ulmus. 



