Acacia hastulata Sm., in A.Rees, Cycl . 39 Suppl. (1818)
Often intricate shrub 0.3–2 m high. Branches often virgate and arching downwards, reddish to orange-brown. Branchlets sparsely to moderately shortly pilose. Stipules setaceous to narrowly triangular, 2.5–4 mm long. Phyllodes crowded, patent, hastate-acuminate with the abaxial lobe rounded and the gland-bearing adaxial lobe angled, sometimes cordiform, 3.5–6 mm long, 2–3 mm wide, pungent, with slender, c. 1 mm long cusp, rigid, green, normally glabrous; midrib central, prominent; lateral nerves absent. Inflorescences simple, 1 per axil; peduncles 2–4 mm long, glabrous; heads globular, 3–5-flowered, cream. Flowers 4-merous; sepals united, the calyx cupular. Pods terete, narrowed at both ends, curved, to 5.5 cm long, 1.5–2 mm diam., red-brown, striate, subglabrous. Seeds longitudinal, oblong to slightly elliptic, 2.5–3.5 mm long; aril terminal.
Occurs from Scott R. and S of Nannup SE to Albany, also near Esperance, south-western W.A. Usually grows in swampy places often with Melaleuca or Banksia , also in Karri forest.
Distinguished from other members of the ‘ A. horridula group’ by its phyllode shape and, except A. inops , glabrous peduncles, fide B.R.Maslin, op. cit . 275.
Type of accepted name
King George Sound [Albany, W.A.], A.Menzies ; holo: LINN; iso: BM.
Synonymy
Acacia cordifolia Sweet ex Courtois, Mag. Hort. (Liege) 1: 241 (1833). Type: ‘originaire de la Nouvelle Hollande, ... Il par ait connu en Angleterre dupuis 1824. Je l’ai vu chez M.Jacob-Makoy.’; n.v.
Acacia cordifolia R.Br. ex Lmon, Ann. Fl. Pomone 1836–1837: 378 (1837), nom. illeg ., non Courtois (1833). Type: None cited; based on cultivated material; n.v .
Acacia cordata Sweet ex Steud., Nomencl. Bot. 2nd edn, 1: 4 (1840), nom. nud .
Illustrations
W.J.Hooker, Bot. Mag . 61: t. 3341 (1834); B.R.Maslin, Nuytsia 2: 274, fig. 3 (1978).
Representative collections
W.A.: 34.5 km W of Denmark towards Walpole, B.R.Maslin 3784 (MEL, PERTH); Stirling’s Terrace [Albany townsite], L.Preiss 959 (C, FI, G, GOET, HBG, K, L, LUND, M, MEL, MO, NAP, NY, P, STR, W); on Le Grand Rd c. 2 km from beach, I.Solomon 406 (PERTH).
(BRM)