- Reference
- S.African J.Bot. 53:245 (1987)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus tufted, dark red, with creeping and erect axes to 2.5 cm long. Lower portions mostly terete, but erect axes (at least distally) distinctly flattened and irregularly subdichotomously branched or palmate. Axes cartilaginous, flattened portion 0.5–1.0 mm wide. Medullary cells 12–20 μm diam.; outer cortical cells equidimensional or slightly longitudinally elongate in surface view, 5–12 μm diam.
Reproduction. Tetrasporangia in inflated nemathecia covering branch apices, cruciately, decussately or often tetrahedrally divided, 25–35 × 20–25 μm. Other reproductive structures not observed.
Distribution. Probably widespread in the Indo-Pacific, in Western Australia south to the Perth region.
Habitat. Epilithic in the subtidal.
[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 236 (2018)]
Distribution
- IBRA Regions
- Swan Coastal Plain.
- IBRA Subregions
- Perth.
- IMCRA Regions
- Abrolhos Islands, Canning, Kimberley, Leeuwin-Naturaliste, Ningaloo, North West Shelf.
- Local Government Areas (LGAs)
- Cockburn, Exmouth, Greater Geraldton, Rockingham, Wyndham-East Kimberley.