32 



The Green Si)n(ce A2)his 



needles turn brown, but the majority hang on and the tree looks as if 

 it had been scorched by fire. In one tree in my garden the leaves 

 have partially kept on into the spring of 1914. The damaged needles 

 certainly fall, but nothing like to the same extent as in the Sitka spruce. 

 In P. uiorinda they become partly defoliated ; in P. engelmannii 



Pig. 9. 



Picp,a excelsa shovvinj]; a few fallen needles anrl young growth unattaeked. a. young 

 growth, b. some nodes where needles have fallen, c. discolouring of needle. 



the trees do not become defoliated, nor in kosteriana ; one of the latter 

 attacked in my garden has every browned needle still holding on, much 

 more so than in excelsa. Partial defoliation takes place according to 

 Mr Black in glehire and monstrosa. 



