10 A RESEARCH ON THE EUCALYPTS OF TASMANIA 



E. Delegattnsis. 



E. regnant. 



K. taeniola. 



E. virgata. 



E. obliqua.* 



Eucalypts which yield oils not readily placed in the 

 above groups : 



E. acervula. 



E. phlebophylla. 



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 Tasmnn-ia.) 



BOTANY. 



Historical. This species was originally described by 

 Hooker in his "Flora Tasmania " (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 '. Stiuirtiana, a Victorian species. Maiden, 

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

 var. (icrrrufa, 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. paludota, 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 



