NOTES ON ACACIA. 203 



I have long doubted that they were separate species, but 

 there were difficulties because of the scarcity of type 

 material of A. deltoidea. I have lately undertaken the 

 examination of certain North Western Australian Acacias 

 collected by Mr. W. V. Fitzgerald, and found a memo by 

 him "4. stipulosa not specifically distinct" (from A. del- 

 toidea)* 



Mueller in his "Iconography" figures A, stipulosa but 

 does not depict A. deltoidea. The flowers depicted are so 

 unsatisfactory, a matter of great importance in Acacia, 

 that the plate has contributed to the uncertainty of the 

 relations of the two species, and I offer drawings which 

 will be more satisfactory than the Iconography plate. 



There seems to be nothing in the specimens of the A. 

 deltoidea-stipulosa series that shows more than a little 

 variation, hardly amounting to a variety, and I am of opinion 

 that A. stipulosa is a synonym of the previously described 

 A. deltoidea. In the Edkins Range specimen a glandular 

 angle is almost imperceptible, there being a swelling curve 

 from the gland to the apex. The flowers are 50 - 60 in the 

 head. The pod is rather more than 1 cm. broad and 4 cm, 

 long, with seeds transverse or oblique. 



Range. 

 So far the species is only known from tropical Western 

 Australia. The following localities are in the West Kim- 

 berleys. Edkins Range (W. V. Fitzgerald, No. 1421, April 

 1905). Packhorse Range (W. V. Fitzgerald, No. 999, May 

 1905). Sunday Island, West Kimberley (W. V. Fitzgerald, 

 November 1906). 



Then we have, practically from the same district, King's 

 Sound (All. Hughan, see Fragm. xi, 117); Fitzroy River,, 

 which flows into the Sound (A. Forrest, 1879, comm. Dr. 

 F. Stoward); also east of the Oscar Ranges, Humbert 

 River (see Vol. Li, p. 100 of this Journal). 



