340 HORTICULTURAL MANUAL. 



marnock, Thurlows, Purpurea, and Napoleonis of the 

 catalogues are useful and give much variety to scenery. 



At the West the Napoleonis top-worked on Salix aurea 

 is most valuable together with the Wisconsin weeping, as 

 the others named above are not hardy North of the 42d 

 parallel. 



For holding the banks of ponds and streams the small- 

 leaved brook willows are often useful and ornamental, and 

 can be started by sticking cuttings into the banks. 



Among ornamental willows with rounded tops and hand- 

 some foliage the two best are Salix aurea and Salix lauri- 

 folia. 



The Salix aurea as received from Eussia is far better than 

 the common golden willow, as its leaves are shining and its 

 growth in winter has a much brighter golden color that can 

 be seen from afar. Salix laurifolia from European Eussia 

 has been most used at the West, but its value in giving 

 variety of expression to round-topped groups is now being 

 generally recognized. 



As a shrub willow for group undergrowth and stream 

 borders, the value of Salix rosemarinifolia is not as yet 

 fully recognized. Its narrow rosemary-like leaves are quite 

 showy. The east European variety is hardy on upland in 

 the West. 



325. The Magnolias. — The beautiful evergreen species 

 of this country and Japan are mainly valuable in the 

 South and on the west coast. Of the deciduous species the 

 cucumber-tree {Magnolia acuminata) is the hardiest, as it 

 makes a large tree in southern Iowa and north Missouri. 

 In the Eastern States some of the deciduous Oriental species, 

 such as Magnolia stellata and M. JToius, do well in shel- 

 tered positions as far north as northern New York. In 

 the North, where hardy, M. acuminata makes a grand 



