62 



TREES AS GOOD CITIZENS 



from insects is another fruitful source of dissatisfaction 

 with this species. Its use should not be recommended 

 in regions more favorable for tree growth, but from the 

 Missouri River westward there are many places where its 

 use is warranted. 



Ash-Leaved Maple (Box Elder). Of rapid growth 

 and thriving even against adverse conditions, this tree 



is used where other trees 

 will fail. While short-lived, 

 with a tendency to heave 

 and crack sidewalks and 

 pavements, and scragglyon 

 top, it is most desirable for 

 planting under conditions 

 unfavorable to other trees, 

 and it has its distinct place 

 in city shade tree develop- 

 ment in the Western states. 



ASH LEAVBD MA?LE 







It should not be planted where other trees will thrive. 

 Lombardy Poplar. The stateliness of tall growth 

 is the distinguishing characteristic of the Lombardy 

 Poplar, the only member of 

 the Poplar family which is 

 eligible for street planting 

 except west of the iooth 

 meridian. Its erect trunk 

 and narrow form, suggest- 

 ing the spire of a lofty cathe- 

 dral, lend themselves well to 

 the dignified beautification 

 of a narrow street, although 

 little shade is produced. It 



is frequently disfigured by Poplar canker disease. The tree 

 grows rapidly and its life is comparatively short. 



