320 



v. Baler, 1919.— Mr. R. T. Baker in his " Hardwoods of Australia," p. 137 

 (1919) divides Eucalypts into eleven groups, according to the barks, as follows : — ■ 



" 1. Bloodwoods. — In this group of trees the bark is rough, rigid, reddish in 

 colour, friable, and very short in the fibre, with medium furrows. 



"2. Mahoganies. — These have a bark almost identical with that of the 

 Stringybarks. 



" 3. Boxes. — This is a more compact, fibrous-ridged bark than any of the previous 

 groups, a light grey in colour, and the lattice pattern much smaller than in the 

 Stringybarks, the furrows less deep than in any other lattice pattern group. 



' ; 4. Tallow Woods. — This bark is yellow ochre in colour, laminated and scarcely 

 rigid or furrowed. 



" 5. Stringybarks. — These are characterised by the long fibres which intertwine 

 and cross lattice-like, forming ridges and depressions, and are reddish-brown or grey 

 in colour. 



" 6. Woollybutts. — This bark may be described as a coarser kind than, or 

 variety of, the Box bark. 



" 7. Blackbutts. — These have similar characters to the Stringybarks, only black 

 at the surface, as though burnt, and not extending so far up the trunk or branches. 



" 8. Gums. — The largest group of all, having a smooth, pinkish, yellowish tint 

 or whitish bark. 



" 9. Peppermints. — These barks might be described as a fine lattice pattern, 

 and rather closer in texture than that of the Stringybarks, but shorter in the fibre and 

 the colour more bordering on that of the Boxes. 



" 10. Ashes. — Somewhat similar in character to the Blackbutts. 



"11. Ironbarks. — A hard, rugged, compact, broadly-latticed pattern, high 

 ridged bark, either black or grey on the outer surface, and always dark red inside." 



Some of these barks are illustrated, usually in profile. 



vi. Maiden, 1921. — 



Following is a grouping of the barks so far as I have been able to do 

 it, and I would point out that no approximately complete classification can be 

 offered until our knowledge of some barks is very much more complete than it is at 

 present. 



It will be found desirable, in the present state of our knowledge, to combine 

 study of the bark with that of size and habit of the species. In due course I shall offer a 

 large number of photographs which illustrate these three characters. Further, it 

 seems natural and convenient to combine colour (and even texture) of timber with the 

 above classification, based on external characters, as it is the common practice of the 

 Australian botanist and forester to use the tomahawk or axe in making his examination 

 in the forest, 



