Acacia guymeri Tindale, Telopea 1: 377 (1978)
Single or multistemmed, open shrub, 1–2.5 m high. Bark smooth, silver-grey. Branchlets slightly angular towards apices, red-brown or yellowish red, squamulose, resinous. Phyllodes linear, straight or slightly curved, 8–16 cm long, 1–2 mm wide, thinly coriaceous, glabrous, with prominent, raised, midvein and 1 or 2 subprominent veins parallel on each side; gland 1, small, basal. Spikes (6–) 9–13 mm long, open, pale yellow or golden. Flowers 5-merous, rarely 4-merous; calyx 0.6–0.8 mm long, dissected for 1/5–1/2, squamulose; corolla 1.5–2.1 mm long, dissected for 5/8–3/4, glabrous or with hairy apices; ovary glabrous. Pods linear, flat, 4–9 cm long, subwoody, glabrous, the valves separating from apex, curling back tightly; margins yellowish, prominent. Seeds longitudinal, oblong to broadly oblong, 3–4 mm long, yellow-brown, darker later, pitted; areole closed.
Recorded from the Cook District, north-eastern Qld, c. 33–45 km WNW of Mount Carbine in the vicinity of Spring Ck. Grows in skeletal soil on rocky ridges in disturbed areas and Eucalytus woodland. Flowers Jan.
Acacia guymeri belongs to a small group of species native to N Qld, viz. A. whitei and A. jackesiana . All have comparatively large flowers which are mostly 5-merous but sometimes 4- or 6-merous, with very prominent midribs in the buds, prominently ribbed sepals and rather flattened, thick, subwoody pods with prominent, pale, raised margins.
Type of accepted name
36 km WNW of Mt Carbine, Laura road, Qld, 12 Jan. 1977, G.P.Guymer 898 ; holo: NSW; iso: BRI, CANB, K, L, MEL, NE, PERTH, US.
Racosperma guymeri (Tindale) Pedley, Austrobaileya 2: 349 (1987). Type: as for accepted name.
Qld: 2 km N of the Kelly St George R. on the Penin. Development Rd, J.R.Clarkson 5120 (BRI, CANB, DNA, K, MEL, MO, NSW, PR, QRS, MEL, PERTH); 33 km WNW of Mount Carbine towards Cooktown, R.Coveny 6969 & P.Hind (BRI, CANB, K, MEL, NSW, US).