Acacia bulgaensis Tindale & S.Davies, in M.D.Tindale, P.G.Kodela & S.J.Davies, Austral. Syst. Bot . 5: 645; 646, fig. 1, 648, fig. 2 & 655, fig. 5a & d (1992)
Glaucous shrub or small tree, 1.5–8 m high. Bark peeling in short flakes, fibrous below, grey-brown, dark brown or reddish brown. Branchlets not markedly triquetrous, becoming terete, light brown to reddish brown, glabrous. Mature phyllodes mostly narrowly elliptic to very narrowly elliptic, usually scarcely curved, 3.5–10 cm long, 7–15 (–23) mm wide, with acute apex and subglobose mucro, coriaceous, glabrous, young growth reddish black and viscid, with 3 obscure or subprominent longitudinal veins separate to base, mostly with 4–7 nonanastomosing minor veins per mm; gland inconspicuous, basal; pulvinus 1.4–3 mm long. Spikes 2, sometimes 1 on leafy axillary shoot, 3–5.2 cm long, dense, bright yellow. Flowers 5-merous; calyx 0.4–0.7 mm long, nearly truncate or dissected to 1/5, densely pubescent to villous, not scurfy; corolla 1.5–1.8 mm long, dissected to c. 1/3, the petals acute, glabrous; ovary glabrous. Pods linear, submoniliform, flat or almost so, straight or curved, 2–9.5 cm long, 3–5 mm wide, thinly coriaceous, finely striate, glabrous. Seeds longitudinal, 4–5 mm long, dark brown to black; areole open.
Common in the Hunter Valley, near Bulga, Milbrodale and Broke, between 3239’S and 3245’S, and between 15057’E and 15102’E, N.S.W. Grows in hilly sandstone country, sometimes on shale, in eucalypt open forest. Flowers: Sept.–Mar.; fruits: Oct.–Mar.
This species is distinguished from the related A. matthewii by being a smaller tree or shrub, with less peeling bark, smaller, less curved, glaucous phyllodes with less prominent main veins and shorter pulvini, branchlets that are often pruinose, not so deeply angular, not winged, and soon terete, shorter bracteole claws, mostly shorter calyces with slightly shorter, less spreading hairs and without red-brown or black glandular hairs at the apices, mostly shorter, not scurfy corollas, glabrous ovaries, and seeds with a longer areole that is narrower at the opening. See also A. blakei .
Type of accepted name
6 miles (9.6 km) SW of Bulga on the Windsor–Singleton road, N.S.W., 14 Sept. 1972, R.Coveny 4614 ; holo: NSW; iso: A, AD, B, BM, BRI, CANB, K, L, LE, MEL, MO, NA, PERTH, TNS, UC, US, Z.
Illustrations
M.D.Tindale et al ., loc. cit. ; T.Tame, Acacias SE Australia 47, fig. 24; pl. 24 (1992).
Representative collections
N.S.W.: 8.5 km SW of Bulga, 24.2 km SW of Singleton, R.Coveny 3928 & K.Thurtell (A, AD, B, BRI, CANB, HO, K, LE, MEL, NA, NE, NSW, NU, PERTH, TNS, UC, US, Z); Darkey Ck, 142 km N of Windsor–Singleton road, 12.9 km SW of Bulga, R.Coveny 4110 & R.Bisby (A, B, BRI, CANB, K, L, NSW, US); 1 km E of Milbrodale on Broke road, R.Coveny 9095 & P.Hind (AD, BM, BRI, CANB, MEL, MO, NSW, PERTH, UC); E of Bulga, Hunter Valley, R.Story 6735 (NSW).
(MDT & PGK)
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.
