261 



AFFINITIES. 



I. With E. gracilis F.v.M. 



The differences appear to be as follows 

 o[ medium size, with brown timber. 



—Both are trees (in West3rn Australia) 



Juvenile leaves ... 



BrancMets 



Mature leaves ... 

 Flowers ... 



Fruits 



E. gracilis. 



E. celasiroidis. 



See under E. gracilis, p. 283. 



Slender, round, scarcely angular. 

 Shiny. 



Anthers of E. calycogona, E. gracilis, and 

 E. celastroides alike. 



Coarser, with often thicker leaves and 



venation more prominent. 

 Commonly angular, often quadrangular. 

 Dull or glaucous. 



Larger, sometimes much larger, some- 

 times more urceolatc. 





2. With E. fmtieetorum F.v.M. 



In Part III, p. 80, of this work, I considered this species to be a synonym of 

 E. celastroides, but the finding of better specimens of the former in the Melbourne 

 Herbarium has caused us to precisely know what E. Jruticetorum is. Reference to 

 Part XI, p. 42, of the present work, and to Part XLII, p. 26, Plate 156, of my 

 "Forest Flora of N.S.W.," are sufficient to show their great superficial resemblance. 

 The sucker leaves sharply separate them, those of E. fruticetorum being narrow, and 

 those of E. celastroides much broader. The fruits also of the latter species are urceolate, 

 and E. celastroides is a moderately large tree. 



3. With E. hemiphloia F.v.M., var. microcarpa Maiden. 



This variety is described at p. 17, Part XI of the present work, and figured at 

 Plate 50. It will be seen at once that there is some resemblance between the variety 

 and E. celastroides in the fruits, while the mature leaves sometimes present resemblances. 

 The juvenile leaves are less triplinerved in the variety. Both are medium-sized trees, 

 but the bark of the variety is more fibrous, but this is a comparison not always easy 

 to make. The timber of E. celastroides is cigar-brown, deeper coloured than that of any 

 foim of E. hemiphloia. 



4. With E. Dundasi Maiden. 



There are several Blackbutts in the inland parts of Western Australia, the name 

 being widely used. While E. celastroides is so named, E. Dundasi (see Part XXXIII) 

 is also a Blackbutt, whose range approaches that of E. celastroides in the Kalgoorlie 

 district. I think the two species are distinct both as regards foliage and buds, but 

 considering the paucity of the E. Dundasi material available, I would invite the attention 

 of collectors to the matter, in order that ample material of E. Dundasi may be collected, 

 and its biological relationships investigated. 



