27 



Aboriginal Names.— " Yarr-warrah " of the Illawarra blacks, according 

 to the late Sir William Macarth.ur. Another New South Wales aboriginal name 

 was " Benaroon." By the aborigines of South Queensland it was known as 

 "Tcheergun" and "Toi." 



In a collection of specimens made by George Caley are three twigs which 

 belong to this species and Avhich are labelled as follows by him, Tarundea being 

 the aboriginal name : — (a) " Pilularis ? Smaller Blackbutted Gum. Tarundea. 

 Feb. 15, 1805." (b) " Great Blackbutted Gum with large capsules. Tarundea. 

 Jan., 1808." (c) "This is neither Deraboyn* nor Tarundea. I only know a single 

 tree of it, nor do the natives know any other." 



Seedling Leaves. — The seedling leaves are narrow (those of two forms are 

 depicted on Plates 1 and 2), thus affording a ready difference from E. capitellata, 

 Sm., and Stringybarks in general. Those of the type form are toothed and hirsute 

 (" in the earlier stages those of E. Muelleriana are frequently more less beset with 

 tufts of hairs." — Howitt). Those of variety Muelleriana that I have seen have the 

 leaves a little broader ; but Howitt speaks of them as " narrow lanceolar," and the 

 two forms run into each other. The width of some of those of E. pilularis are 

 broader still, approximating to those of the true stringybarks. 



Mature Leaves. — They are often hooked at the tips, and sometimes are 

 glossy, particularly in var. Muelleriana. Usually there is no marked difference in 

 the glossiness of the two sides. There are, however, more stomata on the lower 

 side. As regards the type form, the venation is more prominent on the under 

 surface of the leaf. This character, which appears to be almost confined to coast 

 species, is shared by E. acmenioides and E. microcorys, of the Menantherce, and 

 E. saligna, E. resinifera, and several others of the Parallelantherce. The petiole 

 is broadish and flattened. Mueller (Eucalyptographia) lays emphasis on the 

 flatness of the flower-stalks, but this character belongs to many other species, to 

 some to a greater extent than to E. pilularis. In the variety Muelleriana it is 

 sometimes much less marked. 



I am not aware that an account of the oil yielded by the leaves of typical 

 blackbutt has yet been published, but Gildemeister and Hoffmannf have published 

 the following account of the oils of two trees which, as will be presently shown, are 

 forms of this species. 



The oil of Eucalyptus dextropinea, Baker, has been prepared by Baker and Smithy, as has also 

 the oil of E. kevopinea, Baker, from the fresh leaves of these trees. Both are indigenous to New South 

 Wales. The yield was in one case 0'825, in another - 850 per cent. The deep, red-coloured, and strongly- 

 dextrogyrate oil has the sp. gr. O8743-0'8763 at 17°. By distillation the following fractions were 

 obtained:— 156-162°, 62 per cent. ; 162-172°, 25 per cent. 



'-' E . piperita, Sm. 



t "The Volatile Oils," E. Gildemeister and F. Hoffmann (trans. E. Kremeis), 1900. 



ZJourn. Roy. Soc. N.S.W., xxxii, 195. 



