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 Conservation listings displayed on Florabase may also be out of date.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

Tricleocarpa fragilis (L.) Huisman & R.A.Towns.

Reference
Bot.J.Linn.Soc. 113:100 (1993)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus to 7 cm high, pale pink to grey, lightly calcified, subdichotomously branched; dichotomies 6–11 mm apart; segments slightly rounded at both ends. Branches terete, 1.5–2.0 mm in diameter, glabrous. Cortex with 3 or 4 layers of cells; innermost cells inflated and colourless, grading to smaller pigmented outer cortical cells.

Reproduction. Monoecious or dioecious. Spermatangial cavities 300–350 µm in diameter; spermatangia 6–8 × 4–6 µm. Carpogonial branch basal cell with 4 or 5 small-celled branches; hypogynous cell with 3 or 4 branches of nutritive cells. Cystocarps spherical to slightly flattened, 400–500 µm in diameter. Gonimoblast filaments partially lining pericarp base. Carposporangia 45–65 × 26–40 µm. Paraphyses 3- or 4-celled, projecting from inner face of the pericarp.

Distribution. Occurs from the Dampier Archipelago, W. Aust., probably around northern Australia to Qld.

John Huisman & Cheryl Parker, 3 August 2021

Distribution

IMCRA Regions
Kimberley, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs)
Ashburton, Karratha, Wyndham-East Kimberley.