EUCAL YPTUS. 33 



me, state that Eucalyptus urnigera, Eucalyptus coccifera, 

 Eucalyptus viminalis and Eucalyptus Gunnii are "by far 

 the hardiest species in England, and have withstood tem- 

 peratures as low as 10 above zero. In the Channel 

 Islands Eucalyptus globulus and others grow freely." 



The two first species have only recently been intro- 

 duced into California. 



When it comes to the dry sandy situations we have a 

 better tree in the Eucalyptus haemastoma or Eucalyptus 

 hemiphloia. And for dry places with strong soil Eucalyp- 

 tus cornuta and especially Eucalyptus corynocalyx are 

 more successful than the blue gum. For wet soils and sea 

 coast exposure the best species is Eucalyptus robusta. The 

 Eucalyptus which has stood the most frost in California is 

 probably one at Chico. This tree is reported uninjured by 

 two severe winters. One of my ex-forestry officers, Mr. 

 W. S. Lyon, on the authority of Baron Von Mueller, calls 

 it Eucalyptus amygdalina variety angustifolia. Amygdalina 

 is said by Von Mueller to be one of the best frost resisters 

 of the genus, but I can find no such variety credited to it 

 as angustifolia. There is a variety named angustifolia, 

 however, of Eucalyptus crebra, which is a very good tree. 

 So we have some confusion about this frost resister until 

 we can examine it botanicaily and learn to a certainty 

 where it belongs. (I have recently seen a specimen of this 

 tree. It is an amygdalina and a narrow leaf variety.) 



Reports from the large number of experiments with 

 species of Eucalyptus throughout California, from seeds or 

 plants introduced and sent out by me, when Chairman of 

 the State Board of Forestry, are generally unsatisfactory. 

 Upon a resume of these we may say that the sugar gum 

 will stand more drought than the blue gum, but no more 



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