34 



Native Trees of Canada 



than that of any other native spruce. It is valued on this account for structural 

 purposes and for masts and spars of large vessels. Generally speaking, its uses are 

 similar to those of the other spruces. It is an important pulp wood and is used 



SITKA 



SPKUCE 



/T 5//c/jens/s 



for organ pipes and sounding-boards. Its use for aeroplane frames is a recent 

 development. ^jjg HEMLOCKS 



Seven species of hemlock (Tsuga) are known. Four are found in North 

 America of which three occur in Canada. Two of the native species are found in 

 British Columbia and one in the eastern provinces. The other species are found 

 in eastern Asia and Japan, where they are used considerably for decorative 

 planting. 



The hemlocks can be readily recognized from our other evergreens by their 

 leaves. These leaves resemble those of the firs (Abies) in their two-ranked, or 

 feather-like arrangement on the twig, but differ from them in that each leaf has a 

 distinct, tiny, thread-like stem which is attached to a small projection on the bark of 

 the twig. The species can be distinguished from each other by their leaves and cones. 



