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The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). Please reach out to us if you have any questions or concerns.

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Laurencia aldingensis Saito & Womersley

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)]