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General Discussion 



There are four different kinds of Pseudotsuga, only one of 

 which is of great commercial importance. In addition to the one 

 which is in the Garden there is another native one found on the 

 steep, rocky slopes in the mountains of southern California, P. 

 macrocarpa. This species is tender and consequently not suited 

 for ornamental use in colder regions. It has local lumber value 

 and is distinguished by its large cones that may be half a foot in 

 length. The other species are native to China, Japan, and Formosa 

 and are scarcely known in American cultivation. 



There is striking similarity between the Douglas Firs and the 

 true firs but in the latter the scales of the cones gradually fall off 

 while in the Douglas Firs thev do not. 



