116 THE GAEDENEE'S COMPANION 



valuable as a tree which will grow uninjured in 

 the heart of London, and other large towns, for 

 which reason it is often spoken of as the " London 

 Plane". 



Poplar Popidus. This is a name given to trees 

 of widely different appearance. The tall, narrow, 

 upright trees which we so often see by the river- 

 side, P. fastigiata, is the Lombardy Poplar. 

 The Silver Poplar (P. alba) is of moderate size, 

 with grey leaves, white on the underside. The 

 Black Poplar and the Aspen Poplar are both trees 

 of quick growth and immense size, but of no great 

 beauty, nor of any use as timber. And there are 

 many other varieties. 



Sycamore Acer pseudo - platanus. A fast- 

 growing tree, very like the Maple in appearance. 



Walnut Juglans. The well - known Walnut 

 tree is a very beautiful one ; it is of slow growth, but 

 is always of excellent form, and lives to a great age. 

 It is a pleasant tree to sit under, as insects seem to 

 shun it, from the slight aromatic scent of its leaves. 



Willow Salix. Generally recommended as a 

 tree for the water-side ; the weeping form, S. pend- 

 ula, is very graceful. 



