63 



fungoid disease already alluded to in connection 

 with the ChamcBcyparis lawsonsiana caused by 

 Pestalozzia funerea. In many localities trees of 

 twenty years' growth were entirely destroyed. 



55. Tsuga mertensiana, Carr, Western Tsuga, 

 Western Hemlock, Fir, Western Hemlock. 



This Tsuga, first recommended by Mayr on 

 account of the better (more cylindrical and fuller 

 length) shape of its trunk and quicker develop- 

 ment as compared with the Canadensis variety, 

 has only been tried in a small way. The chief 

 risk it runs is from early frost until the plant 

 reaches a height of 2 metres, after which it is 

 hardy. 



