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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.

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Caulerpa racemosa (Forssk.) J.Agardh

Reference
Algern.Syst. 35 (1873)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus green, spreading laterally to 10 cm, with naked stolons 1–2 mm diam. Assimilators unbranched or branched, to 3 cm tall, bearing stalked, mainly spherical but occasionally clavate ramuli 2–3 mm long and 2.5–3.0 mm diam. distally, these usually radially arranged, lacking a constriction between the stalk and the distal sphere; length of the stalk-like proximal region not greater than the diameter of the distal region.

Distribution. Widely distributed in tropical seas.

Habitat. Usually epilithic in the intertidal and shallow subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 94 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Dampierland, Geraldton Sandplains, Indian Tropical Islands, Jarrah Forest, Northern Kimberley, Pilbara, Yalgoo.
IBRA Subregions
Cape Range, Edel, Geraldton Hills, Mitchell, Pindanland, Roebourne, Southern Jarrah Forest.
IMCRA Regions
Abrolhos Islands, Canning, Central West Coast, Kimberley, Leeuwin-Naturaliste, Ningaloo, Pilbara (nearshore), Pilbara (offshore), Shark Bay, WA South Coast.
Local Government Areas (LGAs)
Albany, Ashburton, Broome, Carnarvon, Cocos Islands, Coorow, Derby-West Kimberley, Esperance, Greater Geraldton, Irwin, Karratha, Port Hedland, Rockingham, Shark Bay, Wyndham-East Kimberley.