174 



bracteold hypocraterifor m i , ovario glabro, legumine planius- 

 culo recto vel leviter falcato 7-10 cm. longo J r 5 mm. lato 

 inter semina constricto, seminibus ovato-oblongis longitudin- 

 alibus nigris, funiculo longo semel complicate* itaque majorem 

 partem seminis circumcingente. 



Growing rather numerously in the bed of a dry creek at 

 the foot of the ranges near Hawker ; flowers in' bud ; fruit 

 almost ripe (October 18, 1917). A specimen was submitted 

 to Mr. J. H. Maiden, the leading authority on Australian 

 Acacias. He agreed that this is probably a new species, and 

 added: — "Its affinity appears to be with .4. leprosa, Sieb., 

 var. tenui folia, Benth., in the flowers and bracts, and with 

 the narrow forms of A. strict a, Willd., in the phyllodes and 

 general appearance, but the flowers and pods are totally 

 different. The pods are a good deal like those of 

 A. calamifolia and its allies. Without flowers and pods 

 it could easily be mistaken for .4. aestivalis, Pritzel, 

 a Western Australian species." A. rivalis is certainly well 

 distinguished from any other South Australian species. 



Swainsona Burkei, F. v. M. Yunta (border of Dists. S 

 and M). Only one specimen found growing near a small 

 watercourse beside the Broken Hill Railway. Stems pros- 

 trate; leaflets 7, grey-villous ; standard red with yellow base 

 (drying purple), wings red, shorter than the yellow incurved 

 keel. The 2 longitudinal calli at the base of the standard 

 are much more easily observed when the plant is dried than 

 when it is fresh. 



S. campylantha, F. v. M. Near waterhole at Marree. 

 Erect perennial about 30 cm. high; leaflets 3-5; flowers 

 purple; pod not quite ripe, becoming glabrous, 15-23 mm. 

 long at this stage, oblong, swollen, deeply impressed along 

 the upper suture, not really stalked but much contracted 

 towards the base. 



Indigo f era australis, Willd., var. minor, Benth. Hawker 

 (Dist. S). 



*Sutherlandia frutescens, R. Br. "Bladder Senna." 

 A garden escape established near Leigh Creek. Native of 

 South Africa. 



*Medicago minima, L. Numerous at Millicent. A form 

 with the spines short, thick and not hooked, so that it has 

 a very different appearance from the ordinary form which is 

 found in our midland and northern districts. Determined 

 at Kew. 



Zygophyllaceae . 



Zygo'phyllum prismatothecttm , F. v. M. Marree (Dist. 

 C). Leaf -lobes incurved at summit; petals 4, yellow, lanceo- 

 late, 1\ mm. long ; seeds 2-3 in each cell (not solitary, as 



