NOTES ON ACACIA. 497 



Queensland by Bentham, but Bailey records it from 

 Eumundi, and I add Inglewood to it. 



The South Australian localities of Bentham are those of 

 A. imbricata P.v.M., a form which, if conspecific with A. 

 lineata, which is open to doubt, is furthest remote from 

 that species of all the forms. See below, p. 499. 



With the help of Miss Flockton and Mr. W. F. Blakely 

 (my assistants) I have examined a good deal of material of 

 A. lineata, and the following notes will show the amount 

 of variation observed in the species. 



I have divided the material into groups of specimens (pro- 

 visional groups for the purpose of this paper, and more or 

 less empirical). These groups run into each other a good 

 deal, but there is a sequence in them, beginning at Group 1 

 until we come to Group 5, which contains the forms nearest 

 to A. imbricata F.v.M. 



Pictorial illustration is necessary to describe them fully, 

 but I trust that the following notes will be helpful. 



Group 1, Phyllodes hairy, nearly all with a gland at base 

 on the inner side about a quarter way up. Mid-nerve nearly 

 central, and the tip straight or nearly so, not hooked. 

 Peduncle sparingly hairy. 



Flowers in heads on peduncles (hairy) shorter than the 

 phyllodes. Calyx irregularly lobed, hairy. Petals free, 

 glabrous. Pistil hoary or smooth. 



Parkes (J. L. Boorman). 



Group 2. Phyllode hairy and hooked at tip. Mid-vein 

 nearer to the lower edge, gland towards base. 



Flowers on glabrous peduncles, exceeding the phyllodes. 



Peak Hill (J. L. Boorman), Tomingley to Narromine 

 (J.H.M.) With these may be associated : — Not exceeding 

 the phyllodes, phyllodes hairy, gland; four feet high, spread- 

 ing habit. Bygo Run via Wagga Wagga (J. R. Taylor). 



Ff— December 1. 1915. 



