lot 



The following localities, not already enumerated, given in B.Fl., iii, 243, may- 

 be taken in here : — 



Fertile pastures on the Burdekin (Mueller). This may be regarded as the type. 

 Percy Island (A. Cunningham); Broad Sound (Fitzroy) ; Bowen River (Bowman). 



Dr. H. I. Jensen says : — 



" E. platyphylla is widespread on the flats throughout North Queensland. It is the typical Poplar 

 C4um of the Northern Territory ; grows on heavy grey clay soil. The dwarfed hill variety of E. platyphylla, 

 which I regarded in the Northern Territory as a different species, has not been observed by me at all in 

 North Queensland." He adds that it is calciphile on heavy loams and heavy subsoil, from Central Railway, 

 Queensland, to far north. It is mostly on alluvial and detrital flats, associated with E. terminalis and 

 E. grandifolia. 



AFFINITIES. 



With E. alba Reinw. 



E. platyphylla seems to possess the same cortical characters of E. alba, but differs 

 somewhat in size and habit, and on the whole is a smaller and more scrambling tree 

 than E. alba. The adult leaves are also much broader, while the buds are almost 

 sessile and more globular, and the fruit is usually thicker, with strong, exserted valves, 

 and invariably possesses the characteristic short, thick, pedicel. 



Bentham, in B. Fl., iii, 197, separates the species as follows: — 



Leaves broad, with very diverging veins and distinctly reticulate. 



Flowers nearly sessile or on short thick pedicels. Operculum hemispherical, 



short ... E. platyphylla. 



Flowers small, distinctly pedicellate, operculum conical ... ... ... E. alba. 



Mueller (" Eucalyptographia," under E. alba) says : — 



" E. platyphylla F.v.M., J own. Linn. Soc, iii, 93, approaches closely to E. alba; the leaves are 

 mostly broader, the lid is generally shorter and blunt and the valves less exserted ; its foliage sheds for 

 short periods almost entirely. The range and variability of these trees remain yet to be further ascertained 

 by extended field researches." 



