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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Caulerpa papillosa J.Agardh

Reference
Acta Univ.Lund. 42 (1873)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Stolon slender to moderate, 0.7–2 mm in diameter, naked, epilithic. Erect fronds medium to dark green, with simple or branched axes, usually 4–16 cm high and 2–4(–5) mm across, with axes 1–1.5 mm in diameter densely covered to their bases by vesiculate ramuli. Ramuli 0.7–1.5 mm long, with a lower, sub-terete pedicel 300–800 µm long and 200–300 µm in diameter, then constricted and bearing a subspherical to ovoid-pyriform upper part (250–)350–500(–700) µm in diameter.

Distribution. From Middle I., Recherche Archipelago, W. Aust., to Walkerville, Vic., and northern Tas.

Habitat. In shaded rock pools and the uppermost sublittoral on rough-water coasts, recorded to 12 m deep.

[After Womersley, Mar. Benthic Fl. Southern Australia I: 270 (1984)]

John Huisman & Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains.
IBRA Subregions
Merredin, Recherche.
IMCRA Regions
Central West Coast, Leeuwin-Naturaliste, Shark Bay, WA South Coast.
Local Government Areas (LGAs)
Carnarvon, Cockburn, Esperance, Irwin, Morawa, Rockingham, Shark Bay, Wanneroo.