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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.

Codium harveyi P.C.Silva

Reference
Austral.J.Bot. 277- 278, fig. 11, pl. 2 fig. 1 (1956)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus medium green, erect, repeatedly dichotomous, to 30 cm high, branches terete, 3–5 mm in diameter below, tapering to 1–2 mm in diameter at apices. Utricles short and irregularly swollen, 170–600 µm in diameter, 340–850 µm long, apices broadly rounded with wall scarcely to slightly thickened to 24(–50) µm; hairs (or scars) frequent. Medullary filaments 30–60 µm in diameter, with the plug usually closely adjacent to utricle, in some plants more distant on older utricles.

Reproduction. Gametangia elongate-ovoid, often tapering above, 70–140 µm in diameter and 150–240 µm long, 1–4 per utricle, borne on a short protuberance on lower half of utricle.

Distribution. From Shark Bay, W. Aust., around southern Australia and Tas., to Lake Macquarie, N.S.W. New Zealand.

Habitat.C harveyi occurs in the sublittoral, from low tide level to 30 m deep, on coasts of moderate water movement.

[After Womersley, Mar. Benthic Fl. Southern Australia I: 236 (1984)]

John Huisman & Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Swan Coastal Plain, Yalgoo.
IBRA Subregions
Edel, Perth.
IMCRA Regions
Central West Coast, Leeuwin-Naturaliste, Shark Bay.
Local Government Areas (LGAs)
Capel, Coorow, Mosman Park, Peppermint Grove, Shark Bay.