Beard’s Provinces: Eremaean Province, Northern Province.
IBRA Regions: Carnarvon, Dampierland, Pilbara.
IBRA Subregions: Cape Range, Pindanland, Roebourne.
IMCRA Regions: Kimberley, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs): Ashburton, Broome, Karratha, Port Hedland, Wyndham-East Kimberley.
Habit and structure. Thallus dark green, forming decumbent clumps to 7 cm across, composed of coarse, branched filaments, these often arching distally and becoming reattached by haptera at apices; branching usually secund and irregular; cross-wall formation at base of laterals delayed; filaments (250–)400–700 µm in diameter.
Distribution. Widespread but seemingly disjunct in tropical seas.
Habitat. Epilithic in the intertidal and subtidal, especially on reef flats.
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/