26 



Farmers' Bulletin 120$. 



as the stubs will practically never heal over, and from these cuts 

 decay will start, which in a very few years will rot the center of the 

 limbs and trunk and thus destroy the tree. Although it forms a 

 large round head with an open top and its foliage is pale green 

 above and almost white beneath, making a very delightful shade, it 

 should not be used for street planting where other trees can be made 



to grow. Its use may 



be warranted, h o w - 

 ever, in region 7. 



The sugar maple, or 

 hard maple (fig. 17), 

 is especially adapted 

 to gravelly soils in re- 

 gions 1, 10, and 11, the 

 northern parts of re- 

 gions 2 and 3, and the 

 eastern and southern 

 parts of region 9. It 

 is oval headed, large, 

 and handsome. The 

 leaves come early, but 

 in late summer they 

 begin to turn brilliant 

 yellow and red and 

 drop before most other 

 leaves. The sugar 

 maple does not thrive 

 under city conditions, 

 but it is admirably 

 adapted to suburban 

 streets. 



Although the sycamore maple is similar in appearance to the 

 Norway maple, it is not a satisfactory street tree in the eastern 

 United States. It succeeds, however, in regions 1, 2, 3, and 4. 



OAK. 



Of the trees used for street planting the oaks are best. They 

 probably have not been more widely planted because of the preva- 

 lent belief that they are slow growers and because in the North they 

 are rather difficult to transplant. Although some of the handsomest 

 species, like the white oak and live oak, are slow growers, those 

 suitable for street planting are comparatively rapid growing. The 

 white oak and sugar maple shown in figure 17 are each 32 years old 

 and although differing in shape are practically the same size, yet the 

 sugar maple has been considered a sufficiently rapid growing tree 

 to be planted frequently as a street tree, while the white oak has 



4-4 





FIG. 17. A sugar maple (on the loft) and a white oak 

 (on the right), each 32 years old and nearly the same 

 siza 



