94 



New South Wales. 



Barham, Deniliquin District. " Bastard Gum " (Osborne Wilshire). 



I exhibited some of Mr. Wilshire's specimens before tbe Linn. Soc. N.S. W, 

 in May, 1907, this being tbe first occasion on wbicb E. leucoxylon (not confused 

 witb sideroxylon) lias been recorded for New Soutb Wales. 



AFFINITIES. 



1. Witb E. sideroxylon, A. Cunn. See also p. 82. 



Tbere bas never been any difficulty in tbe field as regards this species, and 

 I brought the matter of the difficulty, which sometimes occurs, of separating 

 E. leucoxylon and E. sideroxylon on herbarium specimens, under the notice of 

 Mr. W. S. Brownsconibe, of Melbourne, a well-known investigator of Eucalypts in 

 Victoria, and he makes the following remarks : — - 



In almost every case the herbarium material of E. leucoxylon and E. sideroxylon can be readily 

 distinguished from each other, without further reference to the bark, &c, after obtaining a knowledge of 

 the two in their native state. In typical (sic - ) forms the tube of the calyx starts more abruptly from the 

 stalklet in E. leucoxylon than in E. sideroxylon. The same distinction is carried into the fruit ; moreover 

 the rim is more contracted in E. sideroxylon. 



Mr. Brownscombe's remarks apply to such a specimen as fig. 4, plate 5G, 

 received by him from Heathcote. But they certainly do not apply to fig. 7 of 

 the same Plate, which represents fruits of E. leucoxylon received from him from 

 the same locality about a year previously. At the same time the character 

 Mr. Brownsconibe points out is often true, but, like other Eucalyptus characters, it 

 must be applied with caution. 



Beferring to E. leucoxylon var. macrocarpa, I have never seen the fruits of 

 E. sideroxylon attain so large a size as do those of E. leucoxylon. 



2. With E. hemiphloia, F.v.M., var. albens. 



The fruits of E. leucoxylon are more pear-shaped, and the ring round the 

 orifice is always present. The anthers, also, of the two trees are different. On the 

 other band, tbe foliage of the two trees is a good deal similar ; they are often very 

 glaucous, and the habit, bark, and timber are a good deal alike. 



3. With E. cladocalyx, F.v.M. 



The timbers of these two South Australian trees are a good deal similar as 

 far as superficial appearances go. Their other botanical characters are, however, 

 very different. 



4. With E. Bosistoana, Rv.M. 



Already referred to under E. Bosistoana, see p, 4 of the present volume. 

 See also p. 3 with respect to some confusion between the two species. 



