142 A RESEARCH OX THE EUCALYPTS OF TASMANIA 



Four species previously recorded as Tasmanian are, as 

 the result of this investigation, found not to exist in the 

 island. These are — 



E . ha e ma s t o m a ^ 

 "*' E. Sieberiana, 



E . Macarthuri, 

 E . Maideni. 



The variety hypericifolia, generally placed with E. 

 amygdalina, we find to belong to E . Risdoni, so that this 

 latter species, as now understood, includes the varieties — • 

 E. amygdalina, var. hi/'perici folia, 

 E . Risdoni, var. elata, 

 E. nitida. 



Eucalyptus nitida Hooker figures in his '' Flora Tas- 

 manise '" as a distinct species, and material collected at 

 Strickland by Mr. L. G. Irby exactly matches his draw- 

 ings. Many of the botanical features of this tree we find 

 now also match forms of E . Risdoni that have come to 

 light since that work was published, and these, together 

 with their chemistry, show that this Eucalyptus is no 

 other than E. Risdoni, althougfh the fruits mav be 

 regarded as an extreme form. 



Rodway's variety niacrocarpa of E. viminalis does not 

 belong to E. globulus as considered by Mueller, nor E. 

 Maideni as recorded by J. H. Maiden (A.A.A.S. 

 1902). It is now given specific rank under .he 

 name of E . unialata. It is worthy . of note that 

 several groups of Eucalypts common on the main- 

 land have no representatives in Tasmania, as, for instance, 

 the " Bloodwoods," '' Boxes," " Mallees," and the '' Iron 

 Barks " ; and it is also of more than passing interest that 

 without exception no red-coloured timbers occur in the 

 whole group of Tasmanian Eucalypts. 



Anyhow a high percentage of good timbers obtains 

 amongst these gums over those of any other State in the 

 Commonwealth, and onlv those of stunted gfrowth near 

 the snow-lme are to be discarded as not possessing timber 

 of economic value in some direction. 



Altogether there should be a great future before the 

 forestry outlook of the State. 



As certain groups of Eucalypts (supra) are found to 

 occur on the mainland only, it would at least be of scien- 

 tific interest if experiments with these could be carried 

 out by introducing into cultivation in the island those of 

 the greatest economic value on the mainland, and record- 

 ing the results. 



