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Acacia bynoeana

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Acacia bynoeana Benth., Linnaea 26: 614 (1855)

Bynoe’s Wattle , Tiny Wattle

Decumbent shrub to 0.3 m high. Branchlets ribbed, puberulous or minutely scabridulous. Phyllodes ascending, linear, straight to recurved, 1.5–5 cm long, 1–3 mm wide, acute, pungent and often curved to uncinate, coriaceous, minutely scabridulous on nerves, with 3 distant, raised nerves. Inflorescences simple, 1 per axil; peduncles 2–6 mm long, puberulous; heads globular, 3.5–4 mm diam., 16–20-flowered, light golden; bracteoles linear-fusiform, puberulous, often one below head on peduncle. Flowers 5-merous; sepals 1/2-united. Pods tapered to both ends, subterete, raised over and constricted between seeds, straight, to 3 cm long, 3.5–4 mm wide, crustaceous, longitudinally raised-reticulate, puberulous. Seeds longitudinal, oblong, 4–4.5 mm long, dull, mottled-brown; funicle/aril terminal, thick.

Restricted to the central coast and tablelands of N.S.W., from Morisset S to Mittagong and near Wollongong. Uncommon in sandy soil in heath and dry sclerophyll forest.

The phyllodes of the type collection are the narrowest seen for the species.

The Murray scrub specimens referred to under A. bynoeana by G.Bentham, Fl. Austral. 2: 337 (1864), are A. wilhelmiana , fide A.B.Court, Muelleria 2: 160 (1972).

Relationships uncertain; possibly related to A. trinervata which has angular, glabrous branchlets, sessile phyllodes, heads with more flowers, longer peduncles, longer pods and arillate seeds. See also A. baueri subsp. aspera .

Type of accepted name

Australia [vicinity Port Jackson, N.S.W., fide A.B.Court, Muelleria 2: 156 (1972)], B.Bynoe ; holo: K; iso: MEL, NSW, PERTH.

Synonymy

Acacia pumila Maiden & R.T.Baker, Proc. Linn. Soc. New South Wales ser. 2, 10: 385; pl. 28 (1895). Type: Kenthurst, N.S.W., Jan. 1894, R.Helms ;holo: NSW222577.

Illustrations

J.H.Maiden & R.T.Baker, loc. cit ; T.Tame, Acacias SE Australia 76, fig. 61, pl. 61 (1992).

Representative collections

N.S.W.: Wentworth Falls, R.Bisby & R.Coveny 4089 (K n.v. , NSW, PERTH); Berkshire Park, P.Hind 5467 (MEL n.v. , NSW).

(RSC)

WATTLE Acacias of Australia CD-ROM graphic

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.

Page last updated: Tuesday 11 September 2018