200 



Landscape Gardening 



injured by rust in August, which causes defoHation before 

 the buds are matured. The treatment required to destroy 

 this rust is the same as for that described for the black 

 poplar. (See Chap. XV.) 



Fig. ioq. — Rivers' Pur[)le Beech. 



Purple-leaved Plum {Prunus Pissardi). — Were it not 

 for the short life of this tree it would be one of the greatest 

 acquisitions. It is rapid in growth, easily transplanted, of 

 good form, and retains its dark purple color longer than any 



