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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 delicatula Grunow

Reference
Askenasy, Forschungsr.Gazelle, Bot.Alg. 4(2):15, Pl. II, Fig. 8 (1888)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus basally pale green, distally dark green, spreading laterally to 10 cm; stolons 0.5–1.0 mm diam., usually densely covered with fine rhizoids that retain particulate matter from the substratum. Rachis simple or sparingly branched, to 20 mm tall and 1.5–2.0 mm wide, with a covering of unbranched filiform ramuli on all sides, these cylindrical, 100–120 µm diam., with pointed apices.

Distribution. Occurs in Papua New Guinea, Indonesia and W.A. where it is known from the Houtman Abrolhos Islands and Ningaloo Reef north to Barrow Island.

Habitat. Associated with sandy or silty substrata, from the intertidal to the shallow subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 87 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Yalgoo.
IBRA Subregions
Cape Range, Edel.
IMCRA Regions
Abrolhos Islands, Ningaloo, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs)
Ashburton, Exmouth, Greater Geraldton, Shark Bay.