- Reference
- Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae 500, Fig. 145A-C (2018)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus erect, dark brown-red, to 14 cm tall, with 1 or 2 percurrent axes arising from a discoid holdfast, radially branched every 2–5 mm (but appearing distichous in pressed specimens) and often with axillary branches. Axes terete; primary axes cartilaginous below, 2–3 mm diam., tapering only slightly; lateral branches 1–2 mm diam., each order of branching progressively narrower, with distinct constrictions at bases, slightly curved upwards; apices rounded or tapering to a fine point, with obvious trichoblasts. Axes in surface view appearing tiered due to very large pericentral cells and the relatively thin cortex. Structure polysiphonous, with 5 large pericentrals, these prominent throughout the thallus, covered by a cortex of markedly smaller cells.
Reproduction. Reproduction not observed.
Distribution. Known from Barrow Island and the Dampier Archipelago, north-western Australia.
Habitat. Epilithic in the subtidal.
[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 500 (2018)]
Distribution
- IMCRA Regions
- Pilbara (nearshore), Pilbara (offshore).
- Local Government Areas (LGAs)
- Ashburton, Karratha.