HARDY TREES 225 



Maiden-hair tree, Grinkgo biloba. 



Very odd and striking. To be used for single specimens. 

 Rowan or European mountain ash, Pyrus Aucuparia. 



Peach -leaved willow, Salix amygdaloides.* 



Very handsome small tree, deserving more attention. This and the 

 next valuable in low places or along water courses. 



Black willow, S. nigra* 



Weeping willow, S. Babylonica. 



To be planted sparingly, 'preferably near water. The sort known as 

 the Wisconsin weeping .willow appears to be much hardier than the 

 common type. 



White willow, S. alba, and various varieties, one of which 



is the golden willow. 



Maybe used sparingly. Tree willows are most valuable, as a rule, when 

 used for temporary plantations or as nurses for better trees. (P. 212.) 



Wild black cherry, Prunus serotina.* 



Nettle-tree, Celtis occidentalis * 



Box -elder, Ncyundo aceroides* 



Very hardy and rapid-growing. Much used in the West as a wind- 

 break, but not strong in ornamental features. 



European larch, Larix Europcea. 



American larch or tamarack, L. Americana * 



Bald cypress, Taxoclium disticlium. 



Not entirely hardy at Lansing. Generally becomes scraggly after 

 fifteen or twenty years. 



Butternut, Juglans cinerea.* 

 Walnut, J, niyra.* 



Ailantlius, Ailantlius glandulosus. 



A rapid grower, with large pinnate leaves. The staminate plant 

 possesses a disagreeable odor when it flowers. Suckers badly. Most 

 useful as a shrub. See the same under Shrubs (page 234; also Fig. 157). 



B. Coniferous Evergreens. 



Norway spruce, Picea excelsa. 



Loses much of its peculiar beauty when thirty to fifty years of age. 

 (See page 217.) 



