1906] LECTURE. 47 



Of the Magnolias the Cucumber tree is the largest growing 

 of all ; the Umbrella INIagnolia is slow in growth. The showy 

 Magnolia is small, bears pink flowers in May. 



Of the Maples adapted to small lawns, the English field ma- 

 ple is desirable in that the foliage is dense. The Japanese 

 maples are desirable and should be given a place. Another 

 maple is the Tartarian maple which in the autumn has shades of 

 yellow, gold and even black. 



The purple leaved plum is the one tree that ought to be 

 wiped off the face of the earth. It is the first tree to get the 

 San Jose scale. 



All the spindle trees are interesting on account of their fruit 

 effect. They have dense foliage and the flowers are incon- 

 spicuous but they show a great mass of colored fruits. 



The Thorns have recently come into notice and many new 

 kinds have been described. They are forms of our native 

 Thorns and are desirable. The Washington thorn is a small 

 tree and bears masses of small scarlet berries. 



The yellowwood is a tree that is highly desirable because it 

 makes a fine round headed tree with a small round trunk and 

 in June and July bears a quantity of long racemes of white 

 flowers. 



The weeping willows have practically gone out of use. The 

 new American willow is very graceful. 



Trees that are desirable for mass planting and forming back 

 grounds are gray birch, Siberian crabs, flowering dogwood, hop 

 tree, hornbeam, Judas tree, Lombardy poplars, spice bush, 

 spindle trees, native thorns and willows. 



Of the conifers, the arbor vitee is among the foremost that 

 are adapted to a variety of uses. 



The larger growing are Norway spruce which is indispensa- 

 ble where rapid growth is desu-ed. 



Of pines there is nothing better than our white pine. 



The white spruce is better adapted to small lawns than the 

 Norway spruce. 



In firs the Colorado silver fir makes a rapid growth. The 

 common silver fir is good for planting but seldom lives more 



