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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +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.