819 
New South Wales. Broken Hill (Forest Guard A. C. Loder; E. C. Andrews). 
'' Is of an upright growth, and the branches are covered with small, sharp 
thorns. I fancy if kept clipped it would make a very good hedge. Only found qn t^e 
plains and near the rivers." Ivanhoe, via Hay (K. H. Bennett). 
Considered a sure indication of underground water. Tibooburra (W. Baeuerlen). 
Spineless, as it sometimes is. Milparinka (C. Q. Ivey). These two localities are in the 
extreme north-west corner of the State. 
A " Gundablui." Small trees of 12-15 feet high, and about the same in spread. 
Thurloo Downs to Berranwinia Downs, Paroo River District ; also Nulty to Toorale ; 
Toorale to Goonery ; Uriseno to Thurloo Downs ( J. L. Boorman). Indeed it is common 
on trans-Darling country. 
North Bourke (A. Murphy). Parish Doradillo, county Cowper, about 30 miles 
east of Bourke (Mining Surveyor John Thomas, per R. H. Carnbage). 
Brewarrina ( J. L. Boorman). Brewarrina Common, with photo (C. J. McMaster). 
About 25 feet high, on open plains, 50 miles north-west of Collarenebri 
(Sid. W. Jackson). 
Queensland. I have specimens of the following : 
Boomara, Cloncurry (R. H. Cambage, No. 4110). Woolgar, Northern Queens- 
land (E. W. Bick). " Grows on blacksoil plains. No weep in foliage." Prairie, 
Northern Queensland (J. R. Chisholm). 
Blackall (collector of F. M. Bailey). Dirranbandi, 132 miles from Goondiwindi 
(Dr. J. Shirley). 
Bentham, p. 360, records it from the Bargoo (Barcoo River). Cambage 
specifically quotes Normanton to Cloncurry, Cloncurry to Hughenden, Hughenden to 
Prairie. These were the first precise tropical Queensland localities known to me. 
EXPLANATION OP PLATE 254 (IN PART). 
A. Flowering twig from Broken Hill, New South Wales, 
p. Flower head. 
c. Bud. 
D. Flower. 
E. Bract. 
F. Corolla opened out. 
a. Pistil. 
B. Seed-pod. 
I. Seed. 
PHOTOGRAPHIC ILLUSTRATION. 
Acacia senlis, Brewarrina, New South Wales. (C. J. McMaster, photo.) 
