350 REVISION OF THE EUCALYPTS OP RYLSTONE DISTRICT, 



I have to acknowledge my indebtedness to Mr. James Dawson, 

 L.S., Surveyor for the District, where he has now been stationed 

 over 25 years and whose knowledge of its Eucalypts is con- 

 siderable, for kindly assisting me with many valuable field 

 observations. 



The geological formation of this district is very interesting, 

 and I regret that I have not given more attention to the subject, 

 as there appears to be a very close connection between particular 

 species of Eucalypts and the soil. For instance, E. Icevopinea is 

 only found on certain disintegrated igneous ground, and B. 

 Datvsoni on a certain stratum below the sandstone of theTomago 

 Beds. 



E. TRACiiYPHLOiA, F.v.M. " Bloodwood." 



No additional notes to those already given are available, as I 

 have never found it in any but the one locality recorded. 



E. L.EVOPINEA, Pv. T. Baker. " Silvertop Stringy bark." 



This tree was first made known to science by me from material 

 obtained on the Gulf Road and recorded under the name of £J. 

 obliqua in my first description of the Rylstone botany 



I have since seen trees of the true £. obliqua in Tasmania, as 

 well as in Victoria and this Colony, and am quite convinced that 

 my previous determination was altogether wrong, through having 

 laid too much stress on the shape of the leaves, for after describ- 

 ing the fruits as distinct from E. obliqua, I state " the shape of 

 the leaves corresponds in every particular with all the descrip- 

 tions and figures published of E. obliqua." I doubt now whether 

 it is ever found on the same geological formation as E. obliqua, 

 for it occurs just below or on the summit of basaltic hills or 

 mountains (J. Dawson). I think there can be no question now 

 about its being a distinct species, for it possesses too many 

 systematic and economic characters to be merged into any 

 other. Nevertheless it should be mentioned that this view does 

 not commend itself to some systematists {vide these Proceedings, 

 1896, p. 803; 1898, pp. 28 and 798; 1901, p. 124; and also 



