1 r CALYPTUS. 8 1 



Eucalyptus leucoxylon or white gum or South Aus- 

 tralian blue gum is a native of South Australia, while 

 Eucalyptus sideroxylon is a native of New South Wales. 

 \Yhen I speak of the ornamental leucoxylon I refer to 

 what we introduced as Eucalyptus sideroxylon. Von 

 Mueller does not recognize this as a species, but I think 

 that it again w r ill be thus ranked. 



Bentham's Eucalyptus leucoxylon var. pallida is doubt- 

 less our silver leafed sideroxylon. We have here varieties 

 of leucoxylon or sideroxylon as folio w r s: 



1. The w r hite barked branching South Australian form. 

 This tree can be seen in great vigor at Santa Monica 

 Heights; flowers white and pink. 



2. Rough persistent barked variety, with dense green 

 foliage and pink flowers, a profuse bloomer, and a sub- 

 variety with white or yellow flowers. The w r hite flowered 

 ironbark at Santa Monica is a shy bloomer. A splendid 

 display of the green foliaged pink flowered ones may be 

 seen at Ellwood, Santa Barbara. 



3. Rough persistent red barked, red flowered and with 

 silvery grey foliage. Also a profuse bloomer. 



This tree can be seen at the Paradise Nursery, Pasa- 

 dena, and at the Santa Monica Forestry station. 



The most recent information I have from Australia indi- 

 cates that these rough persistent barked forms are now 

 ranked as Eucalyptus sideroxylon. The original name is 

 thus renewed for the ironwood. 



This tree is usually of moderate growth but is reported 

 exceptionally at 200 feet. In the bottom lands of Victoria 

 the smooth barked form, or Eucalyptus ley coxy Ion, is the 

 companion of Eucalyptus rostrata. It does well in moist 

 tropical climates as w r ell as in the dry interior of por- 



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