158 LANDSCAPE GARDENING. 



form and habit of the white willow and possessing the same 

 faults, but its golden bark in winter often forms a beautiful 

 feature when planted among canoe-birches, red-twigged 

 willows, or red dogwoods. 



KED-TWIGGED WILLOW (S. a. vitellina, var. Britzensis). 

 This is a comparatively new variety with red twigs which 

 while young are nearly as red as those of the red dogwood. 

 It has not been widely tested, however. 



BASSWOOD OR AMERICAN LINDEN (Tilia Americana}. 

 A native tree of some value for ornamental purposes. It 

 has large, dark green foliage and very fragrant white flowers 

 suspended on long-winged peduncles in July. It makes a 

 large tree in good soil, but becomes rather irregular as it 

 reaches full growth. 



EUROPEAN LINDEN (T. Europea). A native of middle 

 and northern Europe, of more regular form and smaller 

 foliage than the last, and but for the injury caused by 

 borers and a leaf -blight it would be one of the most valu- 

 able pyramidal trees. When not injured by the above 

 pests, it grows very rapidly and reaches large size. (See 

 chapter on Insects and Diseases.) 



WHITE-LEAVED EUROPEAN LINDEN (T. Europea, var. 

 argentca). A vigorous tree with a more rounded head than 

 the last and with leaves dark green above and silvery white 

 beneath. Subject to the same pests as the last. 



AMERICAN MOUNTAIN ASH (Pyrus Americana). One 

 of the most beautiful native small trees often found 

 growing on our mountains. Its large cymose panicles 

 of white flowers are very beautiful, and there is scarcely 

 anything more beautiful than the large clusters of dark red 

 fruit in the autumn and early winter. It is so seriously 

 injured by the apple-borer, however, that it is only by the 



