Caulerpa macrodisca Decne.
Ann.Sci.Nat.,Bot. sér. 2, 17:336 (1842)

Conservation Code: Not threatened
Naturalised Status: Native to Western Australia
Name Status: Current

Distribution

Beard’s Provinces: Northern Province.

IBRA Regions: Dampierland.

IBRA Subregions: Pindanland.

IMCRA Regions: Abrolhos Islands, Canning, Kimberley, Ningaloo.

Local Government Areas (LGAs): Broome, Carnarvon, Exmouth, Greater Geraldton, Wyndham-East Kimberley.

Scientific Description
John Huisman and Cheryl Parker, Thursday 8 September 2016

Habit and structure. Thallus forming clumps, spreading laterally to 12 cm, medium to dark green, with smooth stolons c. 2 mm diam., attached by pillars and sparse rhizoidal filaments. Assimilators to 5 cm tall, with a terete rachis 1.0–1.5 mm diam. Ramuli sparse or crowded, distinctly peltate, with a terete stalk to 5 mm long and a terminal disc 4–10 mm wide.

Distribution. Known from the tropical and subtropical regions of the western Pacific and eastern Indian Oceans. In W.A. south to Coral Bay.

Habitat. Epilithic in the subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 92 (2015)]