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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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Derbesia minima Weber Bosse

Reference
Liste Alg.Siboga 1:95-96, Fig. 23 (1913)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus dark green, to 2 mm tall, tufted, arising from an irregularly lobed rhizoidal base, bearing erect simple to once-branched siphons to 50 µm diam. near the base, tapering to c. 20 µm diam. near the apices; siphons occasionally septate. Chloroplasts numerous, subspherical, 3–5 µm diam., each with a pyrenoid. Sporangia obovoid or pyriform, 100–120 µm long (including pedicel), 60–75 µm diam., with a short pedicel and double septa at the base.

Distribution. Reported from Indonesia, Japan, tentatively from Bikini Atoll (Marshall Islands) and in Australia from Qld and northern W.A.

Habitat. Epizoic in the intertidal.

[After Huisman, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 115-116 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IMCRA Regions
Canning.
Local Government Areas (LGAs)
Broome.