500 J. H. MAIDEN. 



Following is a translation of the original description : — 



Glabrous, branches crowded, with acute angles, stipules obsolete, 

 phyllodes small, crowded, sessile oblong or cuneate-linear, with 

 one nerve, veinless, obtuse, having a gland at the apex, obliquely 

 cuspidate apiculate, peduncles solitary in the axils, exceeding the 

 phyllodes; pods broadly linear, papery, somewhat sessile, slightly 

 compressed, full or many seeded, the suture straight, seeds round- 

 ovate, slightly compressed, shining, blackish, twice as long as the 

 acuminate cymbiform aril. 



In scrub near Tumbey (Tumby) Bay on the shore of Spencer's 

 Gulf. (C. Wilhelmi). 



A dense shrub three to four feet high. Phyllodes two to six 

 lines long, half to one line broad. Peduncles thin, often half an inch 

 long. Pod two to three lines broad. Seeds about one and a half 

 lines long, distinctly areolate. 



The species certainly belongs to the Uninerves, and has affinity 

 with A. lineata. According to the illustrious Bentham, I.e., it is 

 allied to A. confer ta (series Brunoidese) which only flourishes in 

 eastern Australia, but it differs from it. It is of much taller 

 habit, the pubescent branches are not distinctly angled, the phyl- 

 lodes are acute without a terminal gland, with scarcely any nerve, 

 and with a sufficiently distinct margin, pod very much compressed, 

 crowded, much broader, hoary, few seeded, the sutures flexuose, 

 the larger seeds less shining and more compressed, not distinctly 

 areolate and perhaps in the flowers also. ("Fragm." I, 5, 1858). 



A. imbricata is more willowy, less rigid than A. lineata. 



It comes next in the series (of the groups of A. lineata) 

 to Group 5. Its points may be briefly set out. 



Phyllode glabrous, one-nerved with a gland on the upper 

 portion of the phyllode, at the apex between the nerve and 

 the margin. This is appressed to a small "oblique callous 

 mucrone" at the apex between the nerve and the lower 

 margin. The apex, with this gland and callous mucrone, 

 appears thickened and bifid. This is very unusual and may 

 be unique. 



