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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.

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Caulerpa dichotoma Sved.

Reference
Rep.Ceylon Mar.Biol.Lab. 2:127, Figs 23-24 (1906)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus grass-green to dark green, spreading laterally to 20 cm, with smooth stolons 3–4 mm diam., attached by pillars to 5 cm long bearing numerous rhizoids. Assimilators fleshy, to 9 cm tall and 1.5–2.0 cm wide. Rachis slightly to markedly flattened, 3–4 mm wide, unbranched, basally with a smooth stalk 2–5 mm long and 2.0–2.5 mm wide, then bearing distichous ramuli arising alternately or suboppositely from the margins at intervals of 2–3 mm. Ramuli clavate to once-dichotomous, 7–9 mm long and 2–4 mm wide.

Distribution. Known only from One Arm Point, W.A., and the type collection from Sri Lanka.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 89 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Dampierland.
IBRA Subregions
Pindanland.
Local Government Areas (LGAs)
Broome.