DECIDUOUS TREES. 
39 
tlie decoration of scenery, but their use must be with moderation, 
because of a sameness and formality belonging to many of 
them that makes their too free use give a monotonous and 
Fig. 16.— Lombardy Poplar. 
wearying character. They are all of very rapid growth, easily 
transplanted, and some of them form trees of immense size. 
For the purpose of giving variety and spirit to grounds where 
the round-headed trees are most abundant, one or two Lombardy 
poplars — populus dilatata — may be introduced with great effect ; 
