57 



To which may be added the following, some of whicJi are supplementary localities. 

 Bylong, 32 miles from Rylstone (R. T. Baker). The type. Also Murrumbo. 

 " Red Box, Slaty Gum," Gulgong (J. L. Boorman and J.H.M.). 



Cobborah (between Dubbo and Dunedoo) (District Forester Marriott). Duncdoo 

 (Forest Guard C. H. Gardner). 



" Red Gum Nos. 1 c„nd 2." Murrurundi (Forester L. A. Macqueen, 1913). 

 Baerami, Denman (R. H. Cambage, Nos. 2710, 2711). 



The following specimens of E. Dawsoni in the National Herbarium, Melbourne, 

 were looked upon by Mueller as E. polyanthemos. " Ridges near Mudgee" (Rev. Dr. 

 Woolls, October, 1886); Mudgee road (WooUs), under E. polyanthemos in B.FL iii. 214. 



AFFINITIES. 



With E. polyanthemos Schauer. 

 I think that Part XIII, p. 114, &c., of this work, and Part LIX, p. 214, &c., of 

 my " Forest Flora of New South Wales " are eloquent as to the affinities of the two 

 species. 



Mr. Baker, in his original description of the species {op. cit., p. 296) does not 

 clearly contrast it with others. Speaking of it and E. polyanthemos he says : — " The 

 sucker and mature leaves of both species are different as well as the venation. The 

 leaves of E. Daivsoni are almost always glaucous, as well as the buds and fruits, a feature 

 rarely found in E. polyanthemos.'' 



The describer speaks of E. Daivsoni as a tree with a smooth bark — growing " to 

 a great height with a splendidly straight, branchless trunk, and always occurs under 

 the ridges, never being found on the summit nor at the' base." It seems to me that 

 the most outstanding differences between the two species consist in the larger size, the 

 more erect habit, and the smoother bark of E. Dawsoni. 



I cannot satisfy myself that there are important differences in the juvenile leaves 

 of the two species; the mature leaves are more commonly orbicular, or comparatively 

 broad, in E. polyanthemos, the foliage of E. Dawsoni being more commonly lanceolate. 



The fruits of E. Dawsoni appear to have thinner walls, and to be more conical 

 than those of E. polyanthemos ; the latter are usually more pear-shaped. At the same 

 time the fruits are often so similar that they are not easily separated. 



The staminal ring (fig. la, Plate 175) seems more deciduous, with the 

 stamens attached, in E. Daivsoni than in E. polyanthemos, but this is a matter for 

 investigation with additional material. 



