It was first found (recorded as E. obcordata, Turcz., in Proc. Boy. Soc. S.A., 

 xvi, 35*^) hv Mr. R. Helms, 40 miles from Eraser's Range, 5th November, 1S91 

 (" Elder Exploring Expedition "), which is about 100 miles south-east of 

 Coolgardie. 



AFFINITIES. 



1. With E. rudis, Endl. 



Mr. Moore suggests the affinity of his species to E. rudis, and op. cit., p. 193, he 

 uses the following words : — 



The affinity would seem to be with E. riKlia, Emll., which is a tree with broader leaves on longer 

 petioles ; it has neither the short conspicuously winged peduncles nor the sub-sessile flowers ; moreover, its 

 operculum is longer and conical. 



I do not think the resemblance is at all close ; however, the comparison can 

 be well deferred until I figure E. rudis. 



2, 3, 4i: Witli E. torquata, Luelimann, E. diptera, Andrews, and E. inerassata, 



Labill. 



It would appear that the stamens most closely resemble those of the first two 

 species. 



The stamens also reseml)lc those of E. inerassata, but not so closely as those 

 of the species named. A difPerence between the E. Campaspe and E. inerassata 

 stamens, so far as we know at present, is in the longer gland of E. Campaspe, the 

 filament at the l)ase of E. Campaspe, whereas in E. inerassata it is much further up. 

 They also appear to vary in the dehiscences ; in E. Campaspe the anther-cell walls 

 often split from top to bottom (see 4b, Plate 71), while in E. inerassata it would 

 appear that the dehiscence never proceeds so far. 



The affinity of E. Campaspe is not very close to any of these species ; it would 

 appear to be as close to E. diptera as to any, but we require full material of both 

 species, including timber, and to examine E. Campaspe and otlier species in the 

 bush, before we can speak fully as to affinities. 



5. With E. inerassata, Labill., var. eonglobata, another Eucalypt which has 

 hemispherical fruits with exserted valves and strap-shaped peduncles. (See Plate 17 

 Part IV.) It is, however, non-glaucous. The opercula are different, and so are the 

 stamens. 



6. With E. annulata, Benth. [E. eornuta, Labill., var. annulata, F.v.M.) 



In this species or variety, which, by the way, is not glaucous, we have 

 hemispherical fruits, and a strap-shaped peduncle. The tips of the valves are much 

 more protruded in E. annulata ; the operculum is totally different ; the filaments are 

 yellowish and long in E. annulata, and dry reddish in E. Campaspe. 



