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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.

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.