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(c) Blue Gum (these and the following Gums so called on account of the the tint 



of the bark) ; E. saligna, the principal Blue Gum of the coast districts ; 

 E. Maideni, south-east New South Wales, for many years deemed to be 

 E. globulus (Tasmanian and Victorian Blue Gum). 



(d) Grey Gum, E. punctata (which is sometimes also known as " Leather-jacket ") 



E. tereticornis (which is sometimes also known as " Bastard Box "). 



2. Our Ironbarks are as follows : — 



She Ironbarks (E. paniculata), Red-flowering Ironbark (E. sideroxylon), Broad- 

 leaved Ironbark (E. siderophloia), Narrow-leaved Ironbark (E. crebra), Silver-leaved 

 Ironbark of the north west (E. melanophloia). 



3. Following are our Stringybarks : — 



E. obliqua, E. macrorrhyncha, E. capitellata, "Coast Stringybark; also known 

 as '' Broad-leaved or Silvery Stringybark," owing to its greyish bark. E. eugenioides 

 " Stringybark " (has a warm brown cast). Coast and Blue Mountains. 



4. Box. When a Gum-tree has a closely -matted fibrous bark, with interlocked 

 tough wood, it is usually termed a " Box," from a fancied resemblance to the Turkey 

 box-wood which is used for engraving. Following are our principal New South Wales 

 Box-trees : — 



E. hemiphloia, the commonest Box of the coast districts; E. largiflorens (bicolor), 

 Grey Box; E. microtheca, Bastard Box, or Coolibah of the interior; E. yolyantliemos , 

 under this botanical name there is no doubt that two distinct trees, viz.", Red Box or 

 Slaty Gum, and lignum vitce or Poplar-leaved Box, are included. (The latter is 

 E. Baueriana, as afterwards ascertained) ; E. populijolia Bimble Box. 



5. MaJwgany. Some of our Eucalyptus timbers are called " Mahoganies," 

 owing to a resemblance in appearance and texture to West Indian Mahogany. They 

 are as follows : — 



White Mahogany {E. acmenioides) , Bastard Mahogany (E. botryoides), Swamp 

 Mahogany (E. robusta), Red or Forest Mahogany (E. resinifera). 



iv. Cambage, 1913. Mr. R. H. Cambage, Journ. Roy. Soc, N.S.W., xlvii, 30, 

 1913, classifies Eucalyptus barks into five groups : — 



1. Smooth. The Leiophloice of Mueller; the Gums. 



2. Scaly. He gives E. corymbosa, of the Bloodwood group, ... as a type. 



3. Scaly to sub-fibrous. This is an intermediate group, and includes the Boxes. 

 •4. Fibrous. The Pachyphloiw of Mueller; the Stringybarks. 



5. Furrowed. The Schizophloice of Mueller; the Ironbarks. 



I reproduce what he said, for he makes the first geographical classification of 

 some of the barks. 



