- Reference
- Icon.Jap.Algae 1:69 (1907)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus erect, to 6.5 cm tall, pale red when living but drying dark red, with several percurrent axes arising from a common holdfast. Axes terete, to 1.5 mm diam. near base, tapering gradually to upper branches 350–600 µm diam., then to a fine point with a prominent apical cell. Branching alternate to plumose, more dense distally. Trichoblasts prominent near apices, to 1.1 mm long, dichotomously divided. Structure with a prominent central axis, surrounded by pericentral cells 90–100 µm diam.; outer cortical cells longitudinally elongate in surface view, 35–85 µm long, 8–15 µm diam.
Reproduction. Reproductive structures not observed.
Distribution. Widespread in warmer waters of the Indo-Pacific; in north-western Australia south to Coral Bay.
Habitat. Epilithic in the intertidal and shallow subtidal.
[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 493–494 (2018)]
Distribution
- IBRA Regions
- Carnarvon, Dampierland, Pilbara.
- IBRA Subregions
- Cape Range, Pindanland, Roebourne.
- IMCRA Regions
- Canning, Kimberley, Ningaloo, Pilbara (nearshore), Pilbara (offshore).
- Local Government Areas (LGAs)
- Ashburton, Broome, Carnarvon, Exmouth, Karratha, Wyndham-East Kimberley.