IMCRA Regions: Kimberley, Ningaloo, Oceanic Shoals, Pilbara (nearshore).
Local Government Areas (LGAs): Broome, Carnarvon, Exmouth, Karratha, Wyndham-East Kimberley.
Habit and structure. Thallus small, to 3 cm long, with a bluish iridescence when living, light to dark brown when dried, friable, procumbent, creeping over the substratum. Branches short, 3–6 mm wide, with rounded apices, frequently attached along length by tufts of rhizoids. Sporangia initially in clusters near apices, becoming scattered, spherical, to 50 µm diam., lacking an involucre.
Distribution. Occurs in warmer waters of the Indo-Pacific. In northern W.A. known from the Dampier Archipelago and Clerke and Scott Reefs.
Habitat. Epilithic in the subtidal.
[After Huisman & Phillips, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 202 (2015)]
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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/