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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

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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)]