GLOSSARY 375 



Vase Form: 



In a plant, a manner of growth where the top springs from a single 

 stem and spreads outward toward the top as the shape commonly 

 taken by the American elm when growing in the open. For hedges see 

 Plate V. 



Vista: 



A view or prospect; commonly through or along an avenue of trees. 



Wall Garden: 



A garden made by planting small plants in the crevices between the 

 stones in a dry wall which is acting to support an earth embankment. 



Warm Soil: 



A soil in which temperature conditions are such that normal root 

 growth is active, and the root fibres attach themselves to the minute 

 particles of soil. 



Water Garden: 



A garden having a predominance of water-loving plants, with pools to 

 sustain them. 



Water-soaked Soil: 



A soil where excess moisture conditions cause the air voids to become 

 clogged with water and air to be entirely excluded, thus causing a 

 condition termed "drowning-out" of root systems. 



Wild Garden: 



A garden on which little work has been done to disturb natural con- 

 ditions, or a garden deliberately made to imitate natural conditions, 

 the planting consisting chiefly of native plants, planted to get 

 natural effects. 



Wilt: 



n. A parasitic disease generally caused by the anthracnose fungus. 



Windbreak: 



A planting composed of plants placed in such location as to shield cer- 

 tain areas from undesirable winds, usually the cold northwest winds of 

 winter. 



Wind-burn: 



An injury caused by the drying effect of wind upon soft bark or leaves 

 of a plant. 



