424 R. H. CAMBAGE. 



The seedling leaves of this species are very similar to 

 those of E. melanophloia, 1 and are of interest seeing that 

 they taper towards the base into a very short petiole, while 

 the adult leaves are sessile and cordate. 



The Boxes and Ironbarks have several characters in 

 common, such as hard timbers, shape of anthers, and in 

 general, a preference for basic rather than siliceous soils, 

 and the two groups approach each other more closely in 

 these two glaucous leaved species than in any others. 

 There is no doubt, as Mueller points out, (Eucalyptographia) 

 that Leichhardt records the Silver-leaved Ironbark on many 

 occasions instead of the Silver-leaved Box. Near Normanton 

 cemetery E. pruinosa is growing with E, tetrodonta on a 

 soil rather more siliceous than that usually selected by 

 box trees. 



Eucalyptus melanophloia is common near Durham and 

 Cumberland between Georgetown and the Gilbert River, 

 but was not noticed to the westward. 



The species referred to as White Box (No. 4162) was seen 

 over a very wide area, but so far has not been identified 

 and may be undescribed. It was first noticed near Frew- 

 hurst, between Alma-den and Forsayth, and was afterwards 

 seen at various points including Forsayth, Georgetown, 

 Croydon and towards Normanton. It also occurs near the 

 Corella River about thirty miles north of Cloncurry, but 

 is absent from the black soil plains of the lower Flinders. 

 Its average height is about thirty to forty feet and it has 

 a light grey box-bark on the trunk and large branches. 



Juvenile leaves thick, ovate, up to four inches long by 

 two and three-quarter inches broad, midrib prominent, 

 lateral veins arranged at an angle of approximately 60° with 



1 "The Evolution of the Eucalypts in Eelation to the Cotyledons and 

 Seedlings/' by Cuthbert Hall, m.d., Proc. Linn. Soc. N. S. Wales, Vol. 

 sxxix, 498,(1914). 



