STRINGYBARK TREES AND THEIR ESSENTIAL OILS. 105 



the first is commonly called "Red," and the latter "White Stringy- 

 bark," and we now propose the name of "Brown Stringybark" for 

 E. capitellata. They have the widest range of the series and 

 consequently any economics pertaining to them will be of the 

 greatest importance to the Colony, and so we intend in this paper 

 (Part I.) to confine ourselves to these three species, leaving the 

 others to be dealt with subsequently. It is not proposed to give 

 so full a description of each species as was done in our previous 

 paper on " Grey Gum " E. punctata, DC, because in that instance 

 the descriptions of the species had not been brought up to date ; 

 the above three "Stringy barks " have however only recently been 

 examined by Messrs. Deane and Maiden. 1 



In regard to the sequence of species (a matter upon which we 

 place the greatest importance) our researches have produced results 

 which have inclined us to favour the classification of Baron von 

 Mueller 2 rather than that of Bentham in his Flora Australiensis. 



Our order of the following three species is the result of each of 

 us working on quite independent lines of investigations, viz : — 

 botanical and chemical. By agreement nothing was divulged till 

 each line of investigation was completed, when it was found that 

 both botanically and chemically the same affinities of species had 

 been educed. Our researches however, lead us to suggest that 

 there may be a missing species or species between E. macrorliyncha 

 and E. capitellata, and also between the former species and its 

 West Australian congeners, and we hope that our undescribed 

 material will supply the " missing links." 



Our researches have been carried out on material obtained from 

 the following species : — 



E. macrorhyncha, F.v.M.. 

 "Red Stringybark" of N. S. Wales, "Stringybark" of Victoria. 

 This species, founded by Baron von Mueller (1853) is figured 

 and amply re-described in his Eucalyptographia Dec. I. (1879), 



l Proc. Linn. Soc. N.S.W., Vol. xxi., p. 798 (1897). 

 2 Second Census, Australian Plants. 



