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1.— OX EUCALYPTUS PULVERULENTA, Sims. 

 By J. H. Maiden, Botanic Gardens, Sydney. 



Prefatory Remarks. 



My co-worker (Mr. Deane) and myself having brought to an 

 end the series of eight papers on the Eucalypts of New South 

 Wales, which will be found in Vols, xx.-xxvi. (1895 and 1896- 

 1901) of these Proceedings, I have undertaken some further work 

 in connection with the genus, partly of a recapitulatory character. 

 I do not intend to confine my observations to the Eucalypts of 

 this State, for to understand many species it is absolutely necessary 

 to follow them over a range as extensive as possible. I have 

 spared neither pains nor expense to consult types, and I venture 

 to offer to the Society some papers including a number of original 

 observations in regard to certain species, and I will endeavour to 

 clear up difficult points of synonymy. 



It seems to me that this method of dealing with a single species 

 will be found most generally useful in practice. Other papers 

 will be submitted from time to time; some further ones have been 

 accepted for publication by other Societies in and out of Aus- 

 tralia. 



Introductory. 



I would invite attention to the following passage in Mueller's 

 Eucalyptographia (under E. pulverulenta) : — 



In the systematic definition and the illustration I have not included an 

 Eucalypt, the leaves of which in aged trees become elongated-lanceolar, much 

 narrowed upward, and even somewhat sickle-shaped, though their base 

 remains rounded and their stalk very short; moreover in the above mentioned 

 state some of the upper leaves become alternate or scattered. This particular 

 Eucalypt was noticed in Upper Gippsland by Mr. A. W. Howitt, and near 

 the Ovens Kiver by Mr. C. Falck. There is every reason to assume that it 

 is merely a state of E. imlverulenta, mediating a transit to E. Stuartiana^ 



