18 ON HITHERTO UNRECORDED AUSTRALIAN PLANTS, 



rhynchocalyptra was brought from the Flinders-River by Mr. 

 Landsborough, T. cypseloides from near the Gilbert-River by 

 Mr. Th. Gulliver. Macarthuria apetala was gathered by Mr. 

 Holtze on the Alligator-River, but there the plant is unusually 

 tall and has shorter filaments. J/. Neo-Camhrica was sent from 

 the Endeavour-River by Mr. Persieh. 



Acacia merrallii. 



Glabrous ; branchlets slightly pruinous ; phyllodia small, almost 

 sessile, greyish-green, of firm consistence, orbicular-ovate and 

 somewhat cuneate, inequilateral, prominently margined, all their 

 venules faint, the apex rather lateral, sharp-pointed ; glandule 

 inconspicuous, much supra-basal ; peduncles about as long as the 

 phyllodia, solitary, axillary, bearing single headlets of flowei's ; 

 fruits small, much curved or quite twisted, very slender, some- 

 what contracted between the seeds, rather convex on both sides ; 

 seeds ellipsoid, placed longitudinally, the areola on each side 

 minute ; arillus bright-yellow, almost semi-ovate, of fully half the 

 size of the seed and often broader. 



Yilgarn, near Lake Brown ; Edwin Merrall. 



The plant, so far as can be judged, while flowers are yet wanting, 

 is distinguishable from A. obliqiia already in broader and paler 

 phyllodia, stronger peduncles, less curved fruits, more intensely 

 coloured aril of comparatively larger size and of different position. 

 In carpologic characteristics it comes rather near A. ericifolia. 



Acacia alata, northward to the Greenough-River (Jones). 



A. triptera, Darling-Downs (Lau) : Cobar(Rev. J. M. Curran). 



A. Pence, Mueller-River near the Bluff", lat. 25" 45' (Alfred 

 Henry). 



A. lanigera, Kangaroo- Island (Tepper) ; it includes A. vemilosa 

 and A. Whanii. Bentham placed the fruit of A. Ostvaldi with A. 

 lanigera. 



A. rupicola, Kangaroo-Island (Tepper). 



A. conferta, Lake Elphinstone (Mrs. Dietrich). 



