Skip to main content

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 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.