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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.

Tolypiocladia calodictyon (Kütz.) P.C.Silva

Reference
Univ.Calif.Publ.Bot. 25:308 (1952)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus to 13 cm tall, erect, dark brown, with several percurrent axes bearing irregular indeterminate branches; determinate branches short and richly divided, their outer branches fusing with those of adjacent branches and forming a loose outer layer, the entire branch system (indeterminate and determinate) 3–8 mm diam. Structure uniaxial, with 4 pericentral cells, ecorticate, with numerous trichoblasts near the apices.

Reproduction. Reproductive structures not observed.

Distribution. Widespread in the Indian and western Pacific Oceans, and in Western Australia south to Rottnest Island.

Habitat. epilithic in the intertidal and shallow subtidal.

[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 576–578 (2018)]

John Huisman & Olga Nazarova, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Dampierland, Indian Tropical Islands, Pilbara.
IBRA Subregions
Cape Range, Pindanland, Roebourne.
IMCRA Regions
Canning, Central West Coast, Kimberley, Leeuwin-Naturaliste, Ningaloo, Pilbara (nearshore), Pilbara (offshore), Shark Bay.
Local Government Areas (LGAs)
Ashburton, Broome, Carnarvon, Cockburn, Irwin, Karratha, Shark Bay, Wyndham-East Kimberley.