DR. F. MUELLER ON AUSTRALIAN ACACLE. 185 
Gulf Australie boreali-occidentalis a beato Cunningham imperfecte 
collecta. ` 
[Dr. Mueller is right їп referring this to the plant gathered by A. 
Cunningham at Cambridge Gulf. It is very nearly allied to M. mela- 
nozylon ; but the flower-heads appear to be always solitary, on slender 
peduncles, and much smaller than in that species, and the pods more 
straight, broader, thinner, and shorter. The phyllodia are also usually 
more glaucous.—G. B.] 
/2. Acacia implexa, Benth. in Hook. Lond. Journ. of Bot. i. p. 368. 
no. 156. 
Prope urbem Bathurst, C. Moore. Ad ripas fluviorum a portu Phillip 
usque ad flumen Snowy River. Ad montem Maelvor. In tractu 
Bacchus Marsh. ' 
Arbor minor. Cortex nigricans ramosissimus. Sepala cuneata ciliolata 
demum superne secedentia. Semina fusco-nigra nitentia oblongo- 
ovata leniter compressa circiter 2" longa exareolata. Strophiolum 
lividum implexum basin seminis tantum ambiens. 
73. Acacia complanata, All. Cunn. ex Benth. in Hook. Lond. Journ. of 
Bot. i. p. 369. no. 160. 
Wide Bay, C. Moore. Brisbane River, Hill et Mueller. 
B. fasciculata, pedunculis numerosis fasciculatis raro racemosis, No. 32. 
Frutex altior. Sepala cuneato-linearia puberula corolle dimidium supe- 
rantia. Legumina stipitata compressa tripollicaria v. breviora, circiter 
3'" lata, marginata, inter semina plus minusve contracta. 
§ 10. Julifere. 
74. ACACIA TENUISSIMA, n. sp. Glabra, ramulis gracilibus subangu- 
latis, phyllodiis tenui-filiformibus leniter compressis muticis striolatis, 
spicis brevibus axillaribus solitariis densifloris glabris, calyce mem- 
branaceo obtuse dentato, corolla 5-loba calycem triente superante, 
leguminibus........ 
Ad rivum Sturt’s Creek Australiz subcentralis, No. 72. 
Phyllodia 2-4” longa. Pedunculi floriferi semunciales vel breviores. 
Spice circiter 4” longz, floribus minutis. 
A. filifolie Benth. proxima. 
[A good species. The strie of the phyllodia are like those of A. 
aciphylla, Benth. ; but the phyllodia are very much more slender, and not 
pungent. The spikes when in bud are like those of А. xylocarpa, 
the angular corollas projecting considerably above the calyx.—G. B.] 
75. ACACIA PITYOIDES, n. sp. Glabra, ramulis teretiusculis, phyl- 
lodiis compresso-filiformibus oblique apiculatis subtiliter v. indistincte 
striatis, spicis brevibus densis cylindraceis axillaribus solitariis gemi- 
