EUCALYPTUS ACMENOIDES. 



J. C. Sohauer in Walpers repertorium botanioea systematicse ii. 924 (1843) ; WooUs, contributions to the Flora of Australia 

 236 (1867) ; Bailey, synopsis of the Queensland-Flora 174 (1883). 



Finally tall ; branchlets angular ; leaves scattered, of rather thin consistence, lanceolar, 

 not much elongated, gradually pointed, not often curved, dark-green and shining above, paler 

 beneath; their lateral veins subtle, moderately spreading, the circumferential vein somewhat 

 removed from the edge of the leaf ; oil-dots numerous, largely concealed ; umbels mostly axillary 

 and solitary, bearing from 4 to 13 rather small flowers ; stalks moderately or not much compressed ; 

 stalklets rather thin, angular, as long as the calyx-tube or shorter or occasionally longer ; lid 

 hemispherical, pointed at the summit, about as long as the semiovate at the base attenuated tube 

 of the calyx ; stamens all fertile, except some of the outermost inflexed before expansion ; anthers 

 hidneysha'ped, opening anteriorly by divergent slits ; stigma not dilated ; fruits semiovate, not 

 large nor angular, four-celled or rarely 3- or 5-celled ; valves deltoid, inserted not much below the 

 rather narrow or inward descending rim, convergent, slightly or not emersed; sterile seeds mostly 

 not much narrower than the fertile seeds, all without any appendage. 



From lUawarra and the Blue Mountains through literal eastern tropical Australia at least as 

 far as Eockingham-Bay. 



The " White Mahogany-Eucalypt " of New South Wales. 



This Eucalyptus has been restored to specific rank on the repeated representation of the 

 Rev. Dr. WooUs, whose unrivalled knowledge of the Eucalypts of New South Wales renders his 

 judgment concerning them one of authority. He points out, that the bark is more extensively 

 persistent and more fibrous than that of E. pilularis, though not so much so a§ that of any genuine 

 stringybark-tree and is outside greyish, that the wood is of a lighter color, of a satiny lustre when 

 planed and sometimes prettily waved ; he moreover adds, that the " White Mahogany " is more a 

 regular inmate of forests than the "Blackbutt," but not attaining the same height, though 

 Mr. C. S. Wilkinson noted stem-diameters of 4 feet and Mr. Wentw. Watson trees of 80 feet 

 height. The other differences between E. acmenoides and E. pilularis are set forth already in 

 the text of the latter. The seedlings may also show differences in their young state. The timber 

 is useful for building purposes, flooring boards, slabs, rails and palings ; it is readily fissile like 

 that of the stringybark-trees, but heavier and more durable (WooUs). Mr. Ch. Fawcett mentions 

 it as lasting and as of a ^lightly oily nature. The saplings like those of many other Eucalypts 

 serve for hop-poles. In the latter editions of the "select plants for industrial culture and 

 naturalisation" and also in the "systematic Census of Australia*! plants" the E. a;cmenoides has 

 been called E. trianthos, as from inspection of a flowering specimen of« Link's collection, com- 

 municEited by Prof. Eichler, the species described by Prof. Link already in 1822 (enumeratio 

 plantarum horti regii botanici Berolinensis ii. 20) is identical with B. acmenoides ; it will however 

 be better, to retain the latter appellation, as the umbels are only exceptionally three-flowered. 

 Dr. Schauer chose the specific name in allusion to. the resemblance of this Eucalyptus to some 

 species of Eugenia of the section Acmene. Occasionally a few umbels may be crowded on and 

 near the summit of branchlets unaccompanied by leaves, thus constituting a short panicle. 

 Mr. Wilkinson, the able Governriient Geologist of New South Wales, found this Eucalyptus to 

 abound in the Devonian formation, for instance near the Barrington goldfields. It bears flowers 

 already in a bushy young state. Acumen of the leaves not rarely narrowly elongated. Calyx-tube 

 dark-colored and shining ; lid rather thin. Filaments whitish. Border of fruit sometimes in age 

 by horizontal expansion of the lining disk broadish. 



