Hydrun^Las in full bloom 



supplying ornamental plants ceased. With increasing 

 knowledge plant breeders are doing greater work than 

 ever and our universities and botanical societies, and 

 most important of all, the United States Government, 

 through the office of foreign seed and plant introduction, 

 are sending out expeditions that are searching the globe 

 for new material. 



Naturally, the very fact that we have this embarrass- 

 ment of riches makes it more difficult to select the specific 

 plants that are most suitable for any given position, 

 environment or soil, and it is the purpose of this article 

 to give some information on this subject. 



Of course the places most in need of ornamentation of 

 trees and shrubs are those great aggregations of houses 

 in which nature has been utterly defiled, our cities and 

 towns. Unfortunately the plants available for just these 

 places are comparatively few, because the unnatural 

 conditions created exclude many of our handsomest trees. 

 Very few evergreen trees, for example, will thrive in 

 large cities or even in towns where great manufacturing 

 plants are located. The poisoned air of such locations 

 can not aid the plant in assimilating its food, and the 

 dust and soot clogs up the openings of the leaves. Most 



