- Reference
- J.Phycol. 42:1285 (2006)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus erect, richly branched, not tangled, medium brown, to 15 cm tall. Axes isotomously dichotomous, 3–6 mm wide distally, with a narrow rounded angle of divergence (30–50°) in the upper branches. Margins occasionally dentate; apices acute, at least in older thalli. Sporangia scattered across the thallus surface, solitary or in groups of 2 or 3. Antheridia in discrete sori over the entire thallus, surrounded by elongate sterile cells; oogonia in similar discrete sori over the entire thallus.
Distribution. A pantropical species, found throughout northern W.A. and presumably across northern Australia to Townsville, Qld.
Habitat. Epilithic in the intertidal and shallow subtidal.
[After Huisman, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 191 (2015)]
Distribution
- IBRA Regions
- Dampierland, Northern Kimberley, Pilbara, Swan Coastal Plain.
- IBRA Subregions
- Mitchell, Perth, Pindanland, Roebourne.
- IMCRA Regions
- Abrolhos Islands, Bonaparte Gulf, Central West Coast, Kimberley, Ningaloo, Pilbara (nearshore), Pilbara (offshore), WA South Coast.
- Local Government Areas (LGAs)
- Albany, Ashburton, Broome, Derby-West Kimberley, Esperance, Exmouth, Greater Geraldton, Karratha, Mandurah, Northampton, Rockingham, Wyndham-East Kimberley.