238 J. H. MAIDEN. 



NOTES ON AOAOIA, No. III.— EXTRA-TROPIOAL 

 WESTERN AUSTRALIA. 



(With Descriptions of New Species.) 



By J. H. Maiden, f.s.o., f.r.s., f.l.s. 



[Read before the Royal Society of N. 8. Wales, September 5, 1917.~\ 



Pungentes (Plurinerves). 



I. A. xerophila W. V. Fitzgerald, Journ. W.A. Nat. Hist. 

 Soc, p. 8, (May, 1904). (Syn. A. Fitzgeraldi Pritzel, 

 Engler's Bot. Jahrb. xxxv, 291, 1905). 



Originally described from Bardoc, thirty miles north of 

 Kalgoorlie. It has since been collected by Mr. Surveyor 

 Anketell in Muir's Transcontinental Railway Survey, 1901 

 (Kalgoorlie, going east). 



Pungentes (Uninerves). 



II. Acacia Prainii n. sp. 



Frutex parvus, erectus, glaber, pungens, 2-3' altus, ramulis 

 paullo angulatis; phyllodiis angusto-linearibus, pugioniformibus, 

 nervo medio prominente, mucrone longo, acuto, non striato; capi- 

 tulis in racemis axillaribus gracilibus, pedunculis fere filiforrnibus; 

 floribus glabris, 5-meris ca. 20 capitulo; calyce angusto, fere lineare, 

 corollse dimidio sequilongo; petalis libris; pistillo laeve, nitente; 

 legumine seminibusque non visis. 



A free-flowering small, erect bushy glabrous shrub of two 

 or three feet, prickly to the touch because of the pungent 

 tips of the phyllodes; branchlets slightly angular. 



Phyllodia about 3 cm. (1£ inch) long, narrow linear, 

 thickish, rigid, pugioniform, with a prominent midrib, and a 

 long sharp mucrone; not striate. There are usually two 

 but sometimes three glands, which vary somewhat in regard 

 to the distance from the base. 



