148 A RESEARCH ON THE EUCALYPTS OF TASMANIA 



E. Delegatensis. 

 E. reg7ians. 

 E. taeniola. 

 E. virgaia. 

 E . ohliqua* 



Eucalypts which yield oils not readily placed in the 

 above groups : — 



E. acervula. 



E. phlehophylla. 



The altitudes given in this paper can only be considered 

 as approximate, but this, for all practical purposes, is 

 sufficient. 



3.— SPECIES WITH THEIR SYSTEMATIC, TECH- 

 NOLOGICAL, AND CHEMICAL DATA. 



EUCALYPTUS ACERVULA, Hook. f. 



(''Red Gum'' of Tasmania.) 



Botany. 



Historical. — This species was originally described by 

 Hooker in his ''Flora Tasmaniae " (1859), but Mueller, 

 in his " Eucalyptographia " (1879), places it under E . 

 Gunnii, another species described by Hooker in the " Lon- 

 don Journal of Botany " (III. 499. 1844). Bentham, in his 

 "Flora Australiensis " (1866, Vol. III., p. 244), synony- 

 mises it under E. Stuartiana^ a Victorian species. Maiden, 

 in A.A.A.S. 1902, p. 377, classifies it as E. Gunnii^ Hook., 

 var. acervula, Deane and Maiden, whilst Rodway, in his 

 " Flora of Tasmania " (1902), gives to it its due specific 

 rank. 



Remarks. — Morphologically the herbarium material has 

 a resemblance to E . paludosa, R. T. B., a mainland species 

 described in 1898 (Proc. Linn. Soc. N.S.W.), and 

 especially are the fruits alike. 



Maiden (Proc. Linn. Soc. N.S.W., 1901), in a paper 

 on E . Gunnii, Hook, f., places both the mainland E . palu- 

 dosa, R. T. B., and the Tasmanian E. acervula, Hook, f., 

 under E. Gunnii. 



The results of this investigation show that these three 

 are distinct both botanically and chemically. 



* In the oil of this species the aldehyde aromadendral replaces 

 the piperitone 



