Skip to main content

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 Conservation listings displayed on Florabase may also be out of date.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.

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.