DESCRIPTION OF TREES. 155 



very serious fault in that the lower leaves are attacked by 

 a leaf-rust. As this disease is confined largely to the lower 

 leases, there is no difficulty in checking it, if not wholly 

 preventing, by spraying with the Bordeaux mixture. 



FLOWERING PEACHES AND PLUMS (Prunus sp.). Xoth- 

 ing can be more beautiful than the double-flowering peaches 

 and plums, but the flowers are of short duration and the 

 trees subject to all the diseases and insects that attack the 

 fruit-bearing trees, and are therefore not largely planted. 

 They begin to bloom, however, in a few years from planting 

 and where the expense can be aiforded may be planted 

 temporarily to occupy the space until more permanent or 

 slower-growing trees can give the desired effect of shade or 

 ornament. 



FLOWERING APPLES. While the blossoms of the apples 

 are of short duration, like those of the plum, peach, and 

 cherry, the tree is hardy and lasts a much longer time. 

 Among the best of these are: 



PARKMAN'S DOUBLE-FLOWERING (Pyrus malus, var. 

 Parkmanii). This is a rather dwarf tree with rich dark 

 foliage and producing beautiful bright rose-colored double 

 flowers. 



CHINESE DOUBLE-FLOWERING APPLE (P. w., var. flore 

 roseo-plena). Flowers rather larger and more showy than 

 the last. 



LIQUID AMBAR OR SWEET-GUM TREE (Liquidamba 

 styracifolia). A most beautiful tree of regular conical 

 growth, fine dark foliage which takes on a beautiful red 

 and yellow color in the autumn; a native of the middle 

 and Southern States, but proves hardy in Xew England. 



UMBRELLA-TREE (Magnolia tripetala). Of a rather 

 broad irregular form, its large leaves, often nearly 2 feet 



