319 



Speaking of the North-western Australian tree, Mr. W. V. Fitzgerald (MSS.) 

 says : — 



" A tree of 40-50 feet; trunk to 25 feet, diam. 1-2 feet; bark of the trunk grey, 

 roughish, falling off in small plates, leaving the bark smooth, white or white blotched 

 with grey ; sometimes the outer bark persists for a few feet above the ground ; branches 

 spreading; timber reddish to brownish, tough and fairly hard; filaments white." 



AFFINITIES. 



1. With E. latifolia F.v.M. 



Dr. Jensen considered E. dicliromophloia as a narrow-leaved, smooth-barked 

 form of E. latifolia, which gives a point of view. I will deal with this affinity when 

 I come to E. latifolia in Part XLI. 



2. With E. eorymbosa Sin. 



" E. dicliromophloia has the flowers considerably smaller, about the size of 

 E. Iraehyphloia and E. latifolia, besides the bark seems always different, as the specific 

 name implies, from that of E. eorymbosa and E. terminalis, its upper thin smooth and 

 pale stratum separating from the brownish-red thick layers below." (" Eucalypto- 

 graphia " under E. eorymbosa.) 



As far as size and shape are concerned, the fruits, and therefore the inflorescence, 

 of E. dicliromophloia (e.y. Mount Morgan) are not to be distinguished from the normal 

 urceolate fruits of E. eorymbosa, but the rim is thinner, even in the large- fruited forms. 

 The typical fruits of the two species are very different. The seeds are different, and so 

 are the seedlings. 



3. With E. terminalis F.v.M. 



In describing E. dicliromophloia, Mueller does not indicate its affinities. He 

 indeed, as years rolled on, appeared to be uncertain about the species. Like other 

 busy botanists, he sometimes named from memory, and often named E. dichromophlcia 

 " E. terminalis" and his example has been followed by others, as the specimens so 

 casually named became distributed. Bentham says : " It appears to differ but slightly 

 from E. terminalis in the shape and size of the fruits, and perhaps in the bark." 



As a matter of fact, E. dicliromophloia is more remote from E. terminalis than 

 it is from E. eorymbosa. 



Compare Plates 164 and 165. The fruits of E. dicliromophloia are smaller, are 

 (usually) more urceolate, and far less coarse, woody and cylindroid than are those of 

 E. terminalis. The pedicels of E. dicliromophloia are slender, and the fruits often shiny 

 and less scurfy than are those of E. terminalis. 



Typical E. terminalis usually occurs in flats and valleys, while E. dichromo- 

 phloia (often called Eed Bloodwood) prefers more elevated land. 



4. With E. pyrophora Benth. See page 325. 



