270 THE NEW GARDENING 



bery. The value of the North American Choke Berry, 

 P. arbutifolia, lies in the rich autumn colour of the 

 leaves. 



The Sumachs (Rhus species) are grown for the brilliant 

 leaf-colour in the fall and in some cases for the cloud-like 

 masses of fruit. Cotinoides, the American Chit tarn 

 Wood ; glabra, the Smooth Sumach ; and Toxicodendron, 

 the Poison Ivy, are planted for their foliage, Cotinus for 

 its fruit ; there is a form of the latter called purpurea. 

 The Poison Ivy is a very distinctive and striking plant 

 in the fall, especially when one sees it growing against 

 the grey wall of an old building, for the dark red foliage 

 makes a beautiful contrast with the stones ; but it is 

 dangerous, and must not be handled ungloved. 



The Robinias or Tree Acacias are extremely useful, 

 for the pinnate foliage is handsome and the Pea-shaped 

 flowers are beautiful. They make good standards, and 

 as such may be used in shrubberies, on lawns, or as 

 avenue trees at the sides of town and suburban streets. 

 There is a fine variety of the American Rose Acacia, 

 Robinia hispida, called inermis. Neo-mexicana is a 

 splendid species from the Rockies, which bears its 

 beautiful flowers in racemes late in summer. The common 

 species is R. Pseudacacia, the American Locust or Acacia, 

 which is a good street tree ; of its many varieties aurea 

 Bessoniana, Decaisneana and robusta Vignei are the 

 best. 



The Willows (Salix) are of course valuable for moist 

 sites. Alba vitellina is the Golden Willow, a bright and 

 attractive plant. Babylonica is the common Weeping 

 Willow. Cardinalis is the scarlet and purpurea the 

 purple Willow. 



The Elders (Sambucus) are generally represented in 

 gardens by such forms of nigra as the golden (aurea) ; 



