Acacia rhodoxylon Maiden, J. & Proc. Roy. Soc. New South Wales 53: 223; pl. 16, figs 5–12 (1920)
Rosewood , Ringy Rosewood
Tree 6–20 m high. Bark peeling in small curved flakes similar to ‘Minni Ritchi’ species. Branchlets glabrous, resinous. Phyllodes narrowly elliptic to oblanceolate, commonly inaequilateral with a straight lower margin and convex upper margin, sometimes shallowly falcate, 6–10 cm long, 8–20 mm wide, coriaceous, glabrous, resinous when young, with numerous indistinct, close, non-anastomosing nerves, of which 3–5 slightly more prominent. Inflorescences simple, 1 or 2 at base of rudimentary axillary shoot; peduncles 8–20 mm long, glabrous; spikes 2–3 cm long. Flowers 5-merous; sepals united into a truncate calyx. Pods narrowly oblong, 3–7 cm long, 5–9 mm wide, thinly coriaceous-crustaceous, glabrous, slightly resinous. Seeds longitudinal to oblique, widely elliptic, 3.5–4.5 mm long, shiny, brown; aril small.
Occurs in coastal and subcoastal parts of central Qld, from near Eidsvold N to SE of Mount Garnett. Grows in woodland, eucalypt woodland or eucalypt forest.
The extreme range of variation in phyllode shape and size, and in pod dimensions, could be related to the age of the plant.
Hybridises with A. shirleyi in places in east-central Qld, e.g. 125 km SSE of Charters Towers, R.J.Cumming 11579 (PERTH).
Type of accepted name
Eidsvold, Qld, Mar. 1918, T.L.Bancroft 19 ; lecto: NSW, fide P.G.Kodela, Telopea 7: 422 (1998); isolecto: K n.v .; Eidsvold, Qld, Nov. 1918, T.L.Bancroft 19 ; paralecto: BRI, NSW; see P.G.Kodela, loc. cit ., for discussion on types.
Synonymy
Racosperma rhodoxylon (Maiden) Pedley, Austrobaileya 2: 354 (1987). Type: as for accepted name.
Illustrations
J.H.Maiden, loc. cit.
Representative collections
Qld: 45.4 km from Capella towards Clermont, N.Hall H78/66 (NSW, PERTH); c. 72 km SE of Mount Garnet, S.A.Morain 9 (BRI n.v. ); 20 km NE of Eidsvold, L.Pedley 4016 (BRI), Goodnight Scrub State Forest, SW of Bundaberg, M.B.Thomas 262 (BRI); Collinsville Coal Company lease area, Collinsville, H.Thompson AQ395239 (BRI, MEL n.v. ).
(BRM)
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.
