39 



AFFINITIES. 



1. With E. Bosistoana F.v.M. 



Very like E. Bosistoana iu general appearance, and in many details, but the 

 juvenile leaves sharply differentiate the two species, those of E. Bosistoana being 

 " roundish or ovate." E. Bosistoana is also a coastal species of large size ; this 

 Ironbark Box is a smaller tree from dry country. 



2. With E. bicolor, A. Cunn. 



The foliage of the Ironbark Box is bright green, and the venation closer to 

 the edge ; that of E. bicolo?' dull whitish-green. The bark of the former persists 

 onli/ at bottom of trunk, that of E. Jjicolor is alt over stem and branches. The 

 timber of the former is paler and less interlocked. The filaments of the former 

 plant are longer and the operculum is more conical. The fruits of the former are 

 larger and more rimmed, are sparingly distributed ; those of E. bicolor profusely 

 distributed (in clusters). 



Ironbark Box. — What is the tree ? I have already stated my view that its 

 closest affinity is with E odorata. The set of drawings (fig. 5, plate 52) illustrating 

 this form show the affinity without doubt. 



I believe it to show hybridism and to belong to the group of Ironbark Boxes. 

 That being so, I propose to defer further consideration of it until I deal with the 

 Ironbark Boxes, and my object in describing the present tree at length is to interest 

 collectors all over Australia in the subject, in order that they may look out for 

 supposed Eucalyptus hybrids, and particularly those supposed to be hybrids between 

 the Ironbarks and the Boxes. 



I refer to a pajier of mine* on the hybridisation in the genus, and at p. 494 

 are some notes on the Ironbark Boxes. 



In New South Wales we have some Ironbark Boxes which are more or less 

 similar to the Inglewood one, but not absolutely identical Avith it, which is not to be 

 surprised at if they be hybrids, which I think they are, the more closely I study 

 them. 



* "Further notes on hybridisation in the genus Eucalyptus," Proc. Linn. Soc. N.S. W., xxx, 492 (1905). See also 

 a reference at p. 330, Part X of the present work . 



