- Reference
- Austral.J.Bot. 22:821-823, Figs 1B-D, 7 (1974)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus to 6 cm tall, pink or red but often greenish, sprawling and frequently forming loose mats. Holdfast consisting of rhizoids, usually darker than the main thallus, often with entangled debris such as broken shell and coral fragments. Primary axes richly branched. Axes terete throughout; main axes to 0.5 mm diam.; higher branching orders to 0.2 mm diam. Ramuli emerging from main axes solitary, almost perpendicular, widely spaced. Medullary cells with lenticular thickenings. Epidermal cells near apices with projecting outer walls.
Reproduction. Tetrasporangial branchlets arising singly, not clustered. Other reproductive structures not observed.
Distribution. Known from Adelaide, South Australia, and Barrow Island and Thevenard Island, north-western Australia.
Habitat. Usually epilithic in the intertidal.
[After Y. Metti, J.M. Huisman & A.J.K. Millar in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 522 (2018)]