97 



46. Picea sitkcensis. 



As regards this spruce, its prickly foliage is less 



of a guidance for its cultivation than what has 



already been said about West American firs in 



their useful application in connection with spruce. 



47. Pinus jeffreyi. 



48. Pinus ponderosa. 



49. Pinus scopulorum. 



These three moderately rapid growing, light- 

 loving species require fairly good soil, somewhat 

 fresh in the case of the Jeffreyi tree. One- and 

 two-year-old trees are very much endangered by 

 the needle-shedding fungus. 



The buds of the grown plants are gnawed by 

 the squirrel and the bark by mice. From reports 

 received from North Germany they have, for 

 some inexplicable reason, gone largely to decay 

 before reaching the age in which their greatest 

 peril, snow pressure, threatens them. Nothing, 

 therefore, can be said about the further employ- 

 ment of these three species outside their native 

 domain. 



50. Pseudotsuga douglasii. Coast douglasia. 



51. Pseudotsuga glauca, Colorado douglasia. 



52. Pseudotsuga macrocarpa. 



This last kind of tree can be left out of 



G 



