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Service Notice

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.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Wednesday, 1 July 2026 +08:00.

Chondria dangeardii E.Y.Dawson

Reference
Pacific Sci. 8:460, Fig. 62f, g (1954)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current
Image

Scientific Description

Habit and structure. Thallus with primarily upright axes, red when pressed but often iridescent in situ. Primary axes compressed to flattened, percurrent, spathulate, to 1.6 mm broad medially then tapering to blunt apices, but with the apex of the primary filament emergent. Lateral branches arising from submarginal positions in an alternate pattern. Cortical cells in surface view in vaguely linear series, often sinuous, elongate, 70–100 µm long, 12–25 µm wide.

Reproduction. Tetrasporangia borne in short alternate lateral branches, adaxially and singly on radially elongate pericentral cells, thus in whorls of 5 sporangia, spherical, tetrahedrally divided, to 120 µm diam. Other reproductive structures not observed.

Distribution. Widespread in warmer waters of the Indo-Pacific.

[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 494 (2018)]

John Huisman & Olga Nazarova, 3 August 2021

Distribution

IBRA Regions
Dampierland, Geraldton Sandplains.
IBRA Subregions
Geraldton Hills, Pindanland.
IMCRA Regions
Abrolhos Islands, Central West Coast, Kimberley, Leeuwin-Naturaliste.
Local Government Areas (LGAs)
Broome, Coorow, Dandaragan, Greater Geraldton, Rockingham, Wyndham-East Kimberley.