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Acacia longipedunculata

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Acacia longipedunculata Pedley, Contr. Queensland Herb . 11: 17 (1972)

Shrub to 1 m high. Stems pilose, somewhat viscid. Stipules 1–2 mm long. Phyllodes 15–27 per whorl, terete at base, 10–25 mm long, gently incurved from base, abruptly contracted at apex into mucro c. 1–1.5 mm long, pilose. Peduncles usually exceeding phyllodes, 15–45 mm long, viscid. Heads 25–40-flowered, slightly elongated. Flowers 5-merous; calyx 1.2 mm long, the lobes linear to narrowly triangular, acute or acuminate, 0.4–0.6 mm long, with a few long hairs on back; corolla lobes smooth, sparsely hairy. Pods sessile, linear, curved, 20–40 mm long, 6–8 mm wide, glabrous. Seeds longitudinal, depressed-globular, 4 mm long; pleurogram obscure.

Restricted to shallow sandy and rocky soils, in open forest, near Herberton and in the Paluma Ra., north-eastern Qld.

A distinctive species with long phyllodes and peduncles. For a study of the arrangement and development of the phyllodes of this species see R.Rutishauser & R.Sattler, Canad. J. Bot . 64: 1987–2019 (1986). A collection from 100 km S of Elliott, N.T., P.E.Conrick 1165 (AD, PERTH), resembles this species but has a shorter mucro (0.2–0.3 mm) a pilose non-viscid peduncle, longer bracteoles (3 mm) and pilose corolla lobes. It represents a substantial extension of range, if indeed it is this species.

Acacia porcata appears to be related to A. longipedunculata. Also, the smooth corolla suggests relationships with A. hippuroides .

Type of accepted name

Stannary Hills, Qld, June 1962, C.H.Gittins 518 ; holo: BRI.

Synonymy

Racosperma longipedunculatum (Pedley) Pedley, Austrobaileya 2: 351 (1987). Type: as for accepted name.

[ Acacia hippuroides auct. non Heward ex Benth.: J.H.Maiden, Proc. Roy. Soc. Queensland 30: 25 (1918), p.p . as to Irvinebank, Qld, Bennett , and Herberton, Qld, Ringrose ]

Illustration

L.Pedley, Contr. Queensland Herb . 11: 3. Fig.1e (1972).

Representative collections

Qld: Irvinebank, Bennett (BRI); Herberton, June 1906, Ringrose (BRI); Paluma Ra. on Ewan rd, Mar. 1968, Wyatt 18 (BRI); Jumna Ck, between Herberton and Irvinebank, 1 June 1972, J.Wrigley & I.R.Telford (CANB).

(ASG)

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 21 July 2020