Acacia microneura Meisn., in J.G.C.Lehmann, Pl. Preiss . 1: 19 (1844)
Shrub with young branchlets resinous-angled, white appressed-puberulous between angles. Phyllodes ascending, linear, straight to incurved or sigmoid, flat to slightly compressed-rhombic in section, 4- 11 cm long, 1- 2 mm wide, uncinate-acute, appressed-puberulous basally and between nerves, with central nerve and marginal nerves broader and more raised than the c. 3 finer, closely parallel nerves inbetween. Inflorescences simple, 1 or 2 per node; peduncles 0- 1 mm long, appressed-puberulous; heads globular to broadly ellipsoid or obloid, 5.5- 6 mm long, 5.5 mm diam., 20-flowered; bracteoles spathulate, puberulous. Flowers 4-merous; sepals at least 3/4-united. Pods and seeds not seen.
Known only from Cranbrook, south-western W.A. Grows in sand in heath.
Superficially similar to A. epedunculata which has a single prominent, resinous nerve and 2 weaker nerves per face and pentamerous flowers. The linear, elongate phyllodes and sessile, broadly ellipsoid to obloid flower-heads are reminiscent of some collections of A. mimica var. angusta (sect. Plurinerves ) but that taxon differs especially in having phyllodes with equally prominent nerves and pentamerous flowers. Superficially similar to A. phasmoides (sect. Phyllodineae ) from eastern Australia.
The Drummond specimen cited by G.Bentham, Fl. Austral. 2: 400 (1864), is not A. microneura (its identity is unknown).
Type of accepted name
Interior of south-west W.A., Feb. 1841, L.Preiss 942 ; lecto: LD, fide B.R.Maslin & R.S.Cowan, Nuytsia 9: 409 (1994); isolecto: MEL, NY, PERTH (Fragment ex MEL).
Synonymy
Acacia subangularis Maiden & Blakely, J. Roy. Soc. W. Australia 13: 21; pl. 14, figs 8- 12 (1928). Type: north-west Plantagenet, W.A., Sept. 1901, E.Pritzel 689 ; holo: NSW; iso: AD, LY, M, MEL, MO, P, Z.
[ Acacia microneura auct. non Meisn.: G.Bentham, Fl. Australia 2: 400 (1864) p.p. , as to J.Drummond 5: 10 ]
[ Acacia lineolata auct. non Benth.: L.Diels & E.Pritzel, Bot. Jahrb. Syst. 35: 304 (1904), as to L.Diels 4416 (PERTH)]
Representative collection
W.A.: Cranbrook, A.M.Ashby 4681 (CANB, K, MEL, PERTH).
(RSC)
The information presented here originally appeared on the WATTLE CD-ROM which was jointly published by the Australian Biological Resources Study, Canberra, and the Department of Parks and Wildlife, Perth; it was produced by CSIRO Publishing from where it is available for purchase. The WATTLE custodians are thanked for allowing us to post this information here.
