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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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Colaconema robustum (Børgesen) Huisman & Woelk.

Reference
Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae 27 (2018)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus arising from a single thick-walled cell, presumably the original spore, without a prostrate system. Erect axes straight, irregularly secundly branched, with terete cells 7–12 µm diam. [L:B 3–5]. Plastids single, parietal, lobed, with a prominent pyrenoid.

Reproduction. Monosporangia mostly pedicellate, occasionally sessile, sometimes in short series of 2 or 3 sporangia, ellipsoidal, 18–20 µm long and 9–14 µm diam.

Distribution. Widespread in tropical seas.

Habitat. Epiphytic on Sargassum.

[After J.M. Huisman & W.J. Woelkerling in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 27 (2018)]