317 



(c) Blue Gum (tliese 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 kno\vTa 

 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. polyantliemos, 

 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. populifolia Bimble Box. 



5. Mahogany. 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. acnienioides), Bastard Mahogany {E. hotryoides), Swamp 

 Mahogany {E. rohusta), 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 Pachjphloioi of Mueller; the Stringybarks. 



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



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

 some of the barks. 



