602 Classification of Plants. 



Stag's-horn Sumach (Rhus typhina), Negundo fraxinifolia 

 Grleditschia spp., Pterocarya Caucasica, and Hop-tree (Ptelea 

 trifoliata), etc. with pinnate leaves. 



A small number of deciduous trees are equally ornamental 

 in flower and foliage. The most conspicuous example in 

 this group is the Common Horse-Chestnut, to which we may 

 add the Scarlet Horse-Chestnut, the Tulip-tree, the Lime, 

 the False Acacia (Robinia Pseudacacia), the Cucumber-tree, 

 (Magnolia acuminata), the Umbrella-tree (Magnolia tripetala), 

 Catalpa bignonioides, and Paulownia imperialis, but the last 

 seldom produces its flowers in perfection with us. 



We now ,come to those trees planted almost exclusively for 

 the colour they impart to the landscape, all of which are of 

 comparatively small dimensions. To the first class belong the 

 Laburnum in its numerous varieties, the Scarlet and Pink 

 Thorns (Cratsegus Oxyacantha vars.), the Almond, several species 

 of Pyrus', as P. spectabilis and P. coronaria, and the Judas-tree 

 (Cercis Siliquastrum). The following, though less ornamental, 

 are worthy of a place in a large collection where greater variety 

 is desirable : Cladrastis lutea, ^Esculus Pavia in variety, JR. 

 Californica and JE. glabra, Acer rubrum, Cerasus Avium, Cratse- 

 gus Crus-galli splendens, and C. prunifolia, Halesia tetraptera, 

 Caragana spp, on stems, Amelanchier vulgaris, etc. 



The fruits of some trees are conspicuous in autumn and 

 winter : such are the Mountain Ash (Pyrus Aucuparia), the 

 Scarlet-fruited Thorn (Cratsegus coccinea), some of the Crabs, 

 as Pyrus melanocarpa, P. prunifolia, P. cerasifera, etc., Coto- 

 neaster affinis, Rhus glabra var. coccinea, and Gleditschia tri- 

 acanthos (very long thin twisted pods). 



Deciduous Trees ivith variegated foliage. Within the last 

 few years, and especially during the last decade, a great increase 

 has been made in the number of cultivated plants with varie- 

 gated or coloured foliage, especially in hardy trees and shrubs. ' 

 Whilst many of them are inferior in point of beauty to the 

 normal green-leaved varieties, there are a few really effective 

 and desirable, but they should always be sparingly planted. 



1. Trees having their foliage variegated with yellow and 

 green. Sweet Chestnut (Castaneavescafoliis aureo-marginatis), 

 Catalpa bignonioides aurea, Tulip-tree (Liriodendron tulipifera 

 medio-picta), Common Beech (Fagus sylvatica aureo-variegatis), 

 Elm (Ulmus campestris aurea), Sycamore (Acer Pseudo-platanus 

 variegatus), Ash (Fraxinus excelsior aurea), and Elasagnus 

 Japonicus aureo-marginatis. 



