Acacia clarksoniana Pedley (ms)
Trees facultatively deciduous, to 5 m tall; bark tessellated, pale brown bark. Branchlets hirsute with erect hyaline hairs c. 0.1 mm long and scattered longer ones to 0.7 mm long, red-glandular tricomes conspicuous on developing leaves. Stipules on flowering branches straight, rather innocuous, 1.5–2 mm long. Leaves: axis 6–8 cm long (including petiole c.1cm long), hairs similar to branchlets; gland 1–1.5 x 0.3–0.5 mm, situated on top of petiole; pinnae 12–16 pairs, 10–20 mm long; pinnules 15–26 pairs, oblong, 1.8–2.5 mm long, 0.5–0.7 mm wide, long hairs on margins, midrib prominent on lower surface. Heads globular, c. 30-flowered; peduncles 15–40 mm long, indumentum similar to branchlets, involucel at about middle. Flowers 5-merous; calyx gamosepalous; anthers with a globular appendage c. 0.1 mm diam.
Restricted to the south-central part of Cape York Peninsula, Qld, where is occurs in low hilly country in rather open vegetation.
The affinities of the species are with A. valida which has a large petiolar gland, a second smaller gland between the most distal pair of pinnae, usually longer pinnae with more, usually larger, pinnules. More distantly related to A. douglasica .
Type of accepted name
Cook District: 39km from ‘New Dixie’ homestead, Qld, 1505’ 14820’, 15 Oct. 1980, J.R.Clarkson 3585; holo: BRI; iso, K.
Synonymy
Acacia bidwillii var. polytricha Domin, Biblioth. Bot . 89: 273 (1926). Type: in xeridrymio apud opp. Mungana, Feb. 1910, K.Domin `5148`; holo: PR herb. No. 527948.
Representative collection
Qld: c. 20 mi [32.2 km] N of 'Gamboola', L.Pedley 1849 (BRI, NSW).
(LP & BRM)
This species was not included in the Fl. Australia treatment of Acacia. The above account of this new species is based on text provided for use in WATTLE by L.Pedley.
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.
