AUTUMN COLOURS 65 



foliage for some weeks after the colour has been 

 acquired — sometimes almost up to Christmas. Other 

 good Oaks, not so certain, however, as the preceding, 

 are Quercus marylandica (or nigra), Q. heterophylla, 

 Q. imbricaria, and Q. paltistris, all of which turn red. 

 The Tupelo tree {Nyssa sylvatka) turns a fine bur- 

 nished bronzy red. A tree remarkable for the size 

 of its leaves, and especially for the rich golden yellow 

 they put on in autumn, is Carya tomenfosa, but, like 

 most of the Hickories, it is scarcely known in gardens. 

 Carya sulcata is somewhat similar. The Common 

 Elm is usually very beautiful in the soft yellow tints 

 of its leaves in autumn, but another Elm of more 

 distinct aspect is Ulmus pumila, a low tree whose 

 small leaves are retained till late in the year, and 

 turn golden yellow before they fall. Liquidambar 

 styraciflua has long been valued for its fading foliage 

 of purple red, but not so well known is the lovely 

 yellow of the Fern-like foliage of the Honey Locust 

 (Gleditschia triacanthos). The Tulip tree {Liriodendrori), 

 the Nettle trees (Celtis), the Zelkowas, and several of 

 the Birches turn yellow, one of the best of the 

 Birches being Betula corylifolia, which turns a rich 

 orange yellow. 



Among commoner trees the yellow of the Horse 

 Chestnut, the lovely crimson of the Wild Cherry, the 

 golden shades of the Black and Lombardy Poplars, 

 add much to the beauty of every autumn. Several 

 of the Maples are noteworthy in this respect, more 

 especially the numerous varieties of Japanese Maples 

 {Acer palmatum and A. japonicum), these, as well as 



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