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Acacia ramiflora

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Acacia ramiflora Domin, Biblioth. Bot. 89: 260 (1926)

Slender shrub to 3 m high. Branchlets pendulous, angled at extremities, soon terete, glabrous. Phyllodes linear-elliptic to linear-oblanceolate, incurved, 8–12 (–15) cm long, 3–8 mm wide, narrowed towards base, acute to gradually- or abruptly-acuminate (with mucro to 2 mm long), thinly coriaceous, glabrous, with 3 indistinct to slightly raised main nerves and normally with few rather obscure, anastomosing minor nerves inbetween; gland 0–2 mm above pulvinus, 1 or 2 additional glands often present. Inflorescences simple or rudimentary 1-headed racemes with axes 0.5–1 mm long, 2–4 per axil; peduncles 3–5 mm long, to 9 mm in fruit, glabrous; basal bract persistent; heads globular, 4.5–5 mm diam., 20–30-flowered. Flowers 5-merous; sepals c. 1/2-united. Pods linear, alternately raised over and slightly constricted between seeds, to 9 cm long, 8 mm wide, thinly coriaceous, pruinose, glabrous, faintly reticulate, marginal nerve evident. Seeds (immature) longitudinal, exarillate; funicle thickened throughout its length.

Poorly known and inadequately collected species in the Torrens Creek- Pentland area; also near headwaters of Gilbert R., Qld ( fide L.Pedley (1978), Austrobaileya 1: 210). Grows on sandstone hills.

Related to A. simsii which has longer peduncles, narrower pods and arillate funicles.

Type of accepted name

On sandstone hills of Dividing Ra. near Pentland, Qld, Feb. 1910, K.Domin ‘5331’ & ‘5332’ ; syn: PR; L.Pedley, Austrobaileya 1: 210 (1978), treated ‘5332’ as the holotype, not having seen ‘5331’.

Synonymy

Racosperma ramiflorum (Domin) Pedley, Austrobaileya 2: 354 (1987). Type: as for accepted name.

Representative collections

Qld: 34 km from Pentland towards Torrens Creek, C.Gittins 2524 (BRI); ‘Rangeside’ 5–18 km E of Torrens Creek, R.H.Rebgetz 778 (BRI).

(RSC & BRM)

WATTLE Acacias of Australia CD-ROM graphic

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 Conservation and Land Management, 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.

Page last updated: Wednesday 29 May 2013