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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.

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.