THE KEY. 



A.— TREES. 



Eucalypts from 10 feet in height upwards, with a simple or single stem or 

 trunk of 6 feet or more below the first branch. 



A —TEXTURE OF THE BARK. 



•1000 0000 Smooth barks throughout. 

 *-2000 0000 Base of the trunk with rough persistent bark, otherwise smooth, 



"Blackbutts." All Goldfields or Eastern districts species. 

 •3000 0000 Trunk with rough persistent bark, the branches smooth, or 



slightly ribbony only. "Half-barks," e.g., Tate. 

 •4000 0000 All except the branchlets (or twigs), with rough bark, or with 



totally rough bark, e.g., Jarrah and Marri. 

 •5000 0000 Lamellar barks, i.e., bark in thin layers on the trunk, of a papery 



texture. A group which is confined in Western Australia 



to the Kimberley district. 



B.— CHARACTER AND COLOUR OF THE BARK. 



Thick barks (never under %in. thick at breast height). 



•0100 0000 Smooth, white, grey, or pinkish, clean and shedding annually. 

 •0200 0000 Persistent rough, (a) light grey in colour, e.g. Tuart. 

 •0300 0000 Persistent rough, (b) dark grey to almost black. 



Thin barks (never more than *4in. thick at breast height). 



•0400 0000 Smooth, (a) white, or light grey, or yellow-white. 

 •0500 0000 Smooth, (b) reddish or brown or orange-red. 



N.B.— In the case of trees classed under -2 and -5 (either "base of the trunk 

 with rough persistent bark" or "lamellar barks"), the character and colour of 

 the bark has reference to the bark of the upper portions and not the roughened 

 or flaky base. 



C— TIMBER (colour of the heartwood). 



•0010 0000 Pale, i.e., white, yellow, light brown, or pinkish {e.g., Tuart). 



•0020 0000 Red or reddish {e.g., Jarrah and Karri). 



•0030 0000 Brown to almost black (deeper than red, e.g., Coolibah). 



D.— HABITAT (see sketch map). 

 •0001 0000 South- West. 

 •0002 0000 Savannah forest of Southern interior (Eastern districts and 



Goldfields). 

 •0003 0000 North-West. 

 •0004 0000 Kimberley, or Northern district. 



The above are all field characters. The four places following the space refer 

 to botanical distinctions. 



* The well known Blackbutt of the South- West (E. patens) does not belong 

 to the group of Eastern District trees known as Blaekbutts. 



