267 



AFFINITIES. 



The affinity of this species is undoubtedly with E. calycogona Turcz. and 

 E. celastroides Turcz. 



1. With E. calycogona Turcz. 



This species is figured at Plate 9 (Part III), and at figure E of that Plate is 

 shown one of the forms intermediate between it and E. gracilis. I have referred to 

 the gradations at page 81 of that Part. 



I have compared the juvenile leaves (suckers) of E. calycogona, Parilla Forest, 

 S.A., W. Gill. June, 1918, with those of E. gracilis, Karoonda, Hundred Hooper, S.A., 

 W. J. Spafford, Xo. 19, and the only difference I can find is one of roughness, which 

 appears to be referable to the more numerous oil dots in the leaves of E. calycogona. 



Those of E. gracilis, Lake View, Griffith, N.S. W. , W. D. Campbell, are almost 

 identical with W. J. Spafford's No. 19. They are a little immature, but the outline 

 and venation are the same as in the South Australian specimen. These observations 

 alone show the close relations of E. calycogona and E. gracilis. Mueller, indeed, labelled 

 typical E. calycogona, E. gracilis. In J own. Roy. Soc. N.S.W., xlix, p. 324, I refer 

 to an intermediate form, and add Euston to Mildura, V. (W. J. Brownscombe). But 

 E. calycogona seems so different from E. gracilis in the angular flowers and fruits. 



2. With E. celastroides Turcz. 



Some differences between this species and E. gracilis have been already drawn 

 attention to under E. gracilis, see p. 261. 



