POPLAR AND WILLOW 



Thibetan borderland. In its typical form it is a 

 broad-topped, spreading tree often from 60 to 80 

 feet tall, from 6 to 10 feet in girth of trunk, and from 

 50 to 60 feet through the crown. The pendent form 

 is really an extreme condition but it is common. 

 And in relation to this it is worthy of note, for the 

 fact has not been properly appreciated that many 

 Tree-willows have weeping forms. The typical 

 form has a broad crown, and one extreme inclines 

 to be more or less conical and the other pendent. 

 This range of variation — this diversification into three 

 forms — obtains in the Chinese Salix babylonica under 

 consideration; S. Matsudana, common around Peking 

 and westward; S. koreensis, abundant in Korea, and in 

 5. Warburgii of Liukiu and Formosa. It also occurs 

 in other Korean and in certain Japanese Tree- 

 willows, whose names are less familiar, but is not 

 quite so marked. 



In China the Babylon Willow is a favourite garden 

 tree and is also planted by graves and in temple 

 grounds. In northern China and Korea its native 

 confreres are used in the same manner. To Japan 

 the male form of S. babylonica was long ago taken and 

 in many cities — Tokyo, for example — it is a favourite 

 street tree, being kept severely pruned; in Japanese 

 gardens, temples, and palace grounds, it is also com- 

 mon. This male tree has been introduced from 

 233 



