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it from New South Wales, and I think that it is probable that it may be, later on, found 
in the north-western extremity of this State. I trust that the drawing I submit may 
lead to its re-discovery, for it is to some extent a " lost " species as, until the present 
publication, it had not been re-discovered since it was originally described in 1864 
from " Stony Ground, Cooper's Creek, A. C. Gregory." The native name of Cooper's 
Creek is Barcoo, and its course is not perfectly defined, as, in many parts of its length, 
it frequently does not run. It rises in the Warrego district of Queensland, flows through 
sandy desert country into South Australia, debouching into Lake Eyre. 
It is noteworthy that most writers who have collected this Acacia speak of its 
local rarity. It is evidently never found gregariously. I give a number of references 
to South Australian localities ; it is found in the vicinity of the Macdonell Ranges. 
1. I have not seen the specimens referred to in Ernest Giles' "Geographic 
Travels in Central Australia, from 1872 to 1874," 8vo. pp. iii, 223, Melbourne, 1875. 
Giles gives a slightly fuller account of this Acacia in his " Australia twice 
Traversed," i, 62. He speaks of his arrival on the 24th September, 1872, at an elevation 
he calls Mount Udor, in the western part of the Macdonell Ranges. He says : " We had 
to encamp in the midst of a thicket of a kind of willow acacia, with pink bark all in 
little curls, with a small and pretty (mimosa-like, these two words are not in the 1875 
version. J.H.M.) leaf. The bush is of the most tenacious nature, you may bend it, 
but break it won't." 
I think Tate's determination of this as A. cyperophyllct is correct in spite of the 
fact that it is not a " Willow Acacia .... with pretty mimosa-like leaf." 
But the curly bark seems a character. 
2. It is stated to have been collected by Tietkens at the Warman Rocks (S.E. 
of Lake Macdonald), see his Journal of Cent. Aust. Exped. 1889, p. 74 (1891); see also 
Trans. Roy. Soc. S.A., xiii, 101 (1890). 
3. In the Journ. Horn Scientific Exp. 1894, by C. Winnecke, p. 7, under date 
9th May ; we have " Camped at Red Mulga Creek, .... the name of the 
creek is derived from a peculiar and rare species of Mulga, supposed to be Acacia 
cyperophylla, which we first beheld here, and which is possibly confined to this region." 
4. " The lines of the watercourses are marked with Acacia cyperophylla, the red 
Mulga, a very local tree extending across a narrow belt of country from east to west, a 
little way to the north of the old Macumba Station." (Horn Expedition, Narrative, 
by Baldwin Spencer, p. 13.) 
5. " A little to the north of Dalhousie we crossed a narrow belt of country 
characterised by the growth along the creek sides of Red Mulga. This is an Acacia 
(A. cyperophylla) reaching perhaps a height of twenty feet, the bark of which, alone 
amongst Acacias, is deciduous and peels off, forming little deep-red coloured flakes. 
It is evidently very local in its distribution, and we met it nowhere else except in 
this district." (lb., p. 16,) 
