DESCRIPTION OF TREES. 167 



YOUNG'S WEEPING BIRCH (B. a., Youngii). Smaller 

 and less upright than the last, but with a mere drooping 

 head and much smaller leaves. It forms a beautiful object 

 on the lawn. 



WEEPING CHERRIES AND PLUMS. Nothing can be more 

 beautiful than some of the double- and single-flowered 

 weeping cherries and plums, but, like those of the same 

 genus already described, they are short-lived, liable to injury 

 from insects and fungous pests, and the cherries especially 

 to injury to the trunk by freezing. One of the most 

 beautiful is the 



JAPANESE WEEPING CHERRY (Primus Japonica, pen- 

 dula). While young this is one of the most beautiful 

 objects ever introduced. It is, however, grafted upon an 

 upright stock, and we have thus far found nothing as a 

 stock that will withstand the climate of middle and northern 

 New England, where the trunk is split open by the action 

 of frosts. Further south it may not be injured in this way 

 by severe winters. 



WEEPING DOGWOOD (Cornus Florida, var. pendula). 

 This small tree is not more beautiful than the upright form 

 of the species already described, but it is unique and attrac- 

 tive when well grown. 



WEEPING BEECH (Fagus sylvatica, var. pendula), Fig. 

 86. Although not regular in outline, this tree has a pic- 

 turesque beauty peculiar to itself. It is vigorous in growth 

 and desirable. Succeeds only on heavy soils. 



WEEPING ASH (Fraxinus excelsa, var. pendula). A 

 rather stiff, drooping tree, with beautiful foliage, and 

 although not equal in graceful beauty to many of the 

 weeping trees it is useful in some combinations. 



WEEPING POPLAR (Populus grandidentata, var. pen- 



