PLATE XIX. • 



Heavy timber at 800. feet elevation. The large trees in the fore- 

 ground are Sitka spruce (Picea, sitchensis). In the left background 

 are Western hemlock {Tsuga heterophylla) . The large-leaved plant 

 is Skunk cabbage (LysicMton camtschatcense) . The shrubs are 

 species of Vaccinium. Cormis canadensis may be .seen at the base of 

 the large tree in the foreground, and immediately to the left is a 

 plant of a species of Streptopus. 



