- Reference
- Ann.Jard.Bot.Buitenzorg 11:87-90, Pl. IX, Figs 1-4, 6-7 (1893)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus bright green, clavate, to 2–4 cm tall, 3–6 mm diam. Structure with a primary filament bearing 24–30 lateral filaments per whorl, each branching into (3–) 4 (–5) secondary segments that form a faceted cortex. Each facet with 1 dichotomously branched, eventually deciduous hair. Gametangial cysts 4–12 per lateral filament, globose, 100–150 µm diam.; gametangia 4–8 per cyst.
Distribution. A tropical Indo-Pacific species. In W.A. it occurs south to Ningaloo Reef.
Habitat. Epilithic in the shallow subtidal and lower intertidal, locally very common and often occurring in dense clusters (e.g. at Goodwyn Island in the Dampier Archipelago).
[After Huisman, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 154 (2015)]
Distribution
- IBRA Regions
- Carnarvon, Dampierland, Pilbara.
- IBRA Subregions
- Cape Range, Pindanland, Roebourne.
- IMCRA Regions
- Kimberley, Ningaloo, Pilbara (nearshore), Pilbara (offshore).
- Local Government Areas (LGAs)
- Ashburton, Broome, Derby-West Kimberley, Exmouth, Karratha, Port Hedland, Wyndham-East Kimberley.