- Reference
- Proc.Natl.Acad.Sci.U.S.A. 29:91 (1943)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus encrusting to warty or fruticose, with branches 3–9 mm long 1.3–2.0 mm wide, monomerous in construction. Medulla multilayered, plumose; cells not fused laterally. Cortex multilayered; cells 12–19 μm long, 7–13 μm diam. Cortical filaments ending in an intercalary initial cell that subtends a rounded epithallial cell 4–6 μm long, 9.5–14.5 μm diam. Intercalary initials variable in size depending on the developmental stage of the epithallial cell, 12–19 μm long, 7–10 μm diam. Trichocytes scattered throughout the uppercortex, not evident below, usually single and appearing as large multicelled filaments in the cortex, 35–50 μm long, 19–36 μm diam.
Reproduction. Tetrasporangial conceptacles confined to the ends of branches, rounded, 400–500 μm outside diam. Tetrasporangia and/or bisporangia 95–145 μm long, 38–58 μm diam. Other reproductive structures not observed.
Distribution. Widespread in tropical seas.
Habitat. epilithic in the intertidal and subtidal.
[After R.A. Townsend & J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 129–131 (2018)]
Distribution
- IBRA Regions
- Dampierland, Northern Kimberley, Pilbara.
- IBRA Subregions
- Mitchell, Pindanland, Roebourne.
- IMCRA Regions
- Pilbara (nearshore), Pilbara (offshore).
- Local Government Areas (LGAs)
- Ashburton, Broome, Karratha, Port Hedland.