Eucalyptus saligna sheds bark, and looks like decorti- 

 cating botryoides. These two species are difficult to sepa- 

 rate when Eucalyptus botryoides decorticates throughout, 

 Eucalyptus botryoides has hemi-ellipsoid, angular fruits r 

 almost or entirely without stalklets. Eucalyptus saligna 

 has bell-shaped or semi-ovate fruit, not angular, and here at 

 least, the stalklet is quite distinct. Twigs in Eucalyptus 

 saligna green. If the twig colors are a persistent charac- 

 teristic, the decorticating botryoides must be a variety 

 whose red twig color would easily distinguish it from; 

 saligna. 



Baron Von Mueller at one time suggested a classifica- 

 tion of the Eucalyptus on their cortical systems. His 

 divisions were as follows : 



Leiophloiae, bark smooth from decorticating, as in Euca- 

 lyptus globulus ; or persistent even surfaced, as in Euca- 

 lyptus rostrata. 



Rhytiphloise, rough or even surfaced bark, with main? 

 stem not decorticating, Eucalyptus resinifera, Eucalyptus- 

 cornuta, Eucalyptus robusta. 



Inophloiae, bark rough, persistent on stem. Eucalyptus - 

 Stuartiana, Eucalyptus eugenioides. 



Lepidophloiae, persistent bark on stem, laminated, friable, 

 easily separated. Eucalyptus miniata, Eucalyptus phcenicia. 



Pachyphloise, as in Eucalyptus ptychocarpa. This tree 

 has a grey, wrinkled, everywhere persistent, somewhat fib- 

 rous bark. 



Schizophloiae, bark rough, persistent, as in Eucalyptus 

 calophylla, Eucalyptus sideroxylon. 



I have not seen an account of Baron Von Mueller r s~ 

 system, but judge from his notes on Eucalyptus trees that 

 the classification was made on a microscopic study of the 



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