320 



Following is a doubtful form, and I am not yet satisfied as to whether it can 

 be separated from var. micrantha, although the authors think the two forms are 

 identical. 



E. Ilossii,.li. T. Baker and H. G. Smith, "Research on the Eucalypts," 

 p. 70 (1902). See also Froc. Linn. Soc. N.S. TF., xxviii, 352 (1903). 



The authors give jG". micrantha, DC, as a synonym, and state, " Research on 

 the Eucalypts," p. 71 : " Leaves were obtained (for oil) from Cow Flat, Bathurst." 

 In the following year Mr. Baker {o}). cit., xxviii, 352) says : " Camboon is the only 

 locality I have collected it " (so that we really have two localities). Bungendore 

 (see oil analysis) is a third locality. See also xxi, 448. 



The authors, op. cit., p. 71, say: "The oil had no resemblance to that of 

 E, hcemastonia of Smith, the ' Scribbly Gum ' of the coast." 



Under E. hcemasloma, Sm., the authors give E. signata, F.v.M., as a synonym, 

 and this is identical with E. micrantha, DC, as already shown. 



The analyses of the oils of E. hmmastoma and E. Bossii, as given by the 

 authors, are herewith : — 



Species. 



Whence 

 collected 

 for oil. 



Specific 

 gravity 

 at 15" C. 



Specific 

 rotation 



Saponifi- 

 cation 

 number. 



Solubility 



in 

 Alcohol. 



Constituents found. 



hsemastoma... 



Barber's Creek, N.S.W. ; 

 Gosford. 



0-9195 



-32-77° 



(first 

 fraction). 



5-1 



Insoluble 



Phellandrene, 

 eucalyptol, 

 sesquiterpene. 



Rossii 



Cow Flat, Bathurst ; 

 Bungendore. 



0-9168 



to 

 0-921.5 



+ 7-8° 



to 

 + 7-9° 



7-95 



1|- vols. 



70% to 



U vols. 



70%. 



Eucalyptol, pinene, 

 .sesquiterpene. 

 pepj)ermint ketone. 



The type specimens (from Camboon) have pale-coloured foliage. An umbel 

 of flowers and a leaf are figured by Mr. Deane and myself at fig. 14, Plate xxxi, 

 and an umbel of fruits from the Grenfell District is figured at fig. 13 of the same 

 Plate (Proc. Linn. Soc. N.S.W., xxii, 1897). In the legend of the Plate the 

 Grenfell fruits are described as having " thin long pedicels and flat-topped sharp- 

 rimmed fruits. Sometimes there are twenty in a head." 



The Grenfell and Camboon specimens have much in common, and, except in 

 the number of flowers in an umbel (not a very definite character), I see no difference 

 between them. As regards the sharp-rimmed fruits of the Grenfell specimens, we 

 have them sometimes not sharp, and they seem identical with those of Camboon. 



Camboon timber " is very hard, red coloui-ed, and durable, and is far superior 

 to that of E. hmna stoma''' (R. T. Baker). Mr. Forester Postlethwaite, who 

 collected the Grenfell specimens and was a sound Imshman, says : "Quality of timber 

 indifferent." 



