2. A single tree in the north-eastern part of the Botanic Gardens (near the Cycad 

 bed). Juvenile foliage broad and triplinerved. Intermediate and even mature foliage 

 inclined to be triplinerved. (A reference photo, of tree was taken March, 1908). 



3. Outer Domain, near foot of Governor-General's steps. Juvenile leaves 

 medium lanceolate. Branchlets nearly winged. 



These three trees, growing within a few hundred yards of each other, differ in 

 flowering period, in habit and bark, in addition to the differences already indicated. 



E. tereticornis is described at some length by Naudin, 6° Serie, Bot. T. xvi, 

 p. 398 (1883). Quoted as 1st Mem. He lays special stress on its variability. It is 

 variable, even with the strict definition of the species ; it must also be borne in mind 

 that, until recently, E. tereticornis was looked upon as including E. amplifolia Naudin, 

 E. Bancrojti Maiden, E. dealbata A. Cunn. and even other species. We are gradually 

 becoming better acquainted with the life histories of various forms of Eucalyptus. 



The group, of which E. tereticornis is the best known member, is apparently in a 

 state of flux, but it is believed that my attempt to classify the forms will be suggestive. 

 This is no exception to the rule that obtains in other groups that the individuality of 

 species varies. But in order to handle these forms at all, to avoid interminable and 

 indefinite verbiage, it is desirable to establish names by which to refer to the most 

 important of them. The tereticornis group will be referred to again when the second 

 part of this work is reached, which will deal with phylogenetic problems. 



It is to be noted that the common name for E. tereticornis differs in New South 

 Wales and Queensland. People here and there give other names, but in New South 

 Wales the vast majority call it " Red Gum " and in Queensland " Blue Gum." At 

 the same time the use of these names has been evolutionary ; in New South Wales 

 the names " Blue Gum " and '' Grey Gum " for this species were both in use as late 

 as half a century ago. 



For example, this is the species referred to by Sir William Macarthur in his 

 Catalogue of Woods at the Paris Exhibition, 1855 (No. 92), and the London Exhibition 

 of 1862 (No. 19), as the " Blue Gum of Camden." In the catalogues of both exhibitions 

 the native name in the IUawarra is given as " Tdjetlat," or " Tjellat," and also 

 " Barroul-goura," while in the latter catalogue the name is given as "Yarrah" at 

 Camden. In this, connection, the names given by George Caley (Botanical Collector 

 in New South Wales, 1800-1810), as quoted in my paper in the Agric. Gaz. N.S.W. for 

 1903, p. 989, may be referred to. According to Caley's specimens, received from the 

 British Museum, the names " Barilgora " or " Berigora " applied to E. hemiphloia 

 F.v.M. are sufficiently near to those of Macarthur, to cause comment. 



Caley gives the names of " Burringora " and " Yarro " for E '.' tereticornis and these 

 have some similarity to those quoted by Macarthur half a century later. It is a matter 

 ' for very great regret that the aboriginal names of our native trees were not systematically 

 recorded, but, of course, very little was done with unravelling Eucalyptus in the early 

 days. But th? trouble could have been got over by collecting specimens and carefully 

 numbering them; identifications would have followed in process of time, 



