Acacia mimula Pedley, Austrobaileya 1: 29 (1977)
Tree 3–7 m high. Branchlets angular at extremities, glabrous. Phyllodes narrowly elliptic to oblanceolate, shallowly to strongly falcate, 8–20 cm long, 10–28 (–35) mm wide, obtuse, glabrous, with 2 or 3 prominent longitudinal nerves (the third on broad phyllodes and not extending to apex) of which only lowermost reaching apex, secondary nerves anastomosing in open reticulum; gland basal, 1 or 2 additional glands on upper margin. Inflorescences in axillary racemes or terminal panicles; raceme axes 6.5–15 cm long, glabrous; peduncles 5–20 mm long; heads globular, 5–6 mm diam., 40–62-flowered, white to cream. Flowers 5-merous; sepals 1/2–2/3-united. Pods flat, 13 cm long, 2–2.5 cm wide, thickly coriaceous to woody, openly reticulately nerved, glabrous. Seeds oblong-elliptic, 9–10 mm long, slightly shiny, dark brown; funicle fleshy and folded beneath aril.
Occurs in north-western N.T., from near Darwin SE to near Katherine. Grows in sandy and gravelly soil in open forest and woodland.
Closely related to A. rothii . Also related to A. latescens which has consistently two main longitudinal nerves in the phyllodes and short axillary racemes.
Type of accepted name
43.2 km SE of Darwin, N.T., June 1864, D.J.Nelson 1100 ; holo: BRI082969; iso: K, PERTH.
Synonymy
Acacia mimula is based on the following: Acacia propinqua Pedley, Contr. Queensland Herb. 15: 4, figs 2A & 4 (1974); Racosperma mimulum (Pedley) Pedley, Austrobaileya 2: 352 (1987). Type: as for accepted name.
Illustrations
L.Pedley, Contr. Queensland Herb. 15: 22 (1974); J.Brock, Top End Native Pl. 68 (1988).
Representative collections
N.T.: Munmarlary, C.Dunlop 4268 (PERTH); c. 3 km E of Umbrawarra Gorge, C.Dunlop 4556 (CANB, PERTH); Mary R. Ranger Station, S boundary of Kakadu Natl Park, B.R.Maslin 7361 et al. (DNA, PERTH).
(RSC & 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.
