1910] The Ottawa Naturalist. 175 



most other trees have fallen. Pin Oak, Quercus palusiris, is also 

 another fine species, but a slower grower, but its finely cut leaves 

 give quite a characteristic feature to an avenue of this species. 

 It is, however, much tenderer than the Red Oak and should 

 onlv be planted in the milder parts of Ontario. 



Other good native trees for street planting for some sections 

 of the countrv are the Silver and Red Maples for wet ground, 

 the Svcamore or Buttonwood for south-western Ontario. 



For park purposes there are so many good native trees that 

 one would have to name almost all of them, but a few of the 

 best deciduous trees are those previously mentioned for streets 

 and the Basswood, Beech, Yellow Birch, Canoe Birch, Mountain 

 Ash, White Ash, Kentucky Coffee Tree, Cork Elm, Hickory, 

 Scarlet Haw, Cockspur Haw, Honey Locust, and Tulip Tree and 

 Sassafras (for western Ontario). 



Canada is rich in evergreens and why the Scotch Pine, 

 Austrian Pine, and Norway Spruce are used to the almost ex- 

 clusion of our native pines and spruces can only be explained by 

 the apparent preference for something exotic. 



The Scotch Pine, Pinus sylvestris, cannot be compared in 

 beauty with our White Pine, Pinus Sirobus, which is the most 

 beautiful pine that grows. The Scotch Pine is stiff er in habit 

 to begin with and soon becomes scraggy and unsightly, while 

 the beaut V of the White Pine increases as it grows older if 

 given plentv of room so that it may hold its branches to the 

 ground. 



The Austrian Pine, Pinus Laricio nigricans, is a fine tree, 

 but it also has a stiff er outline than our Red Pine, with which 

 it mav be fairlv compared. We usually think of Red Pine, Pinus 

 resinosa, as it'is seen in the woods, a tall tree with a clean trunk 

 and apparently a few leaves at the top, but well grown speci- 

 mens of Red Pine branching to the ground are most attractive. 



The Norway Spruce, Picea excelsa. is a beautiful tree when 

 young, being a rapid grower and very graceful, but for perma- 

 nent effect it cannot be compared with our native White Spruce. 

 Picea alba, particularly those wnth a bluish tinge, as anyone who 

 has seen a well-grown specimen of White Spruce sixty or seventy 

 feet high will bear me out. The Colorado or Rocky Mountain 

 Blue Spruce, Picea pungens As a close competitor of the White 

 Spruce and the best specimens are bluer in colour and it is un- 

 doul)tedlv one of the best spruces to plant, but it is a very stiff 

 tree and it is not a favotirite with many people on that account. 

 Moreover, it is expensive, which makes it more or less ])rohibitive. 

 B. The Hemlock, Tsuga canadensis, is a very graceful tree. 



B' and while a rather slow grower there is no other tree which 

 k does well in eastern Canada that looks anvthing like it. For 



I 



