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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.

Chaetomorpha billardierii Kütz.

Reference
Bot.Zeit. 166 (1847)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus light green, becoming yellow-green, loose-lying in extensive entangled masses (up to several metres across) of fairly straight filaments, in sheltered lower eulittoral to upper sublittoral habitats. Filaments without attachment cells, of similar diameter throughout. Cells (200–)220–350(–450) µm in diameter and L/B (1–)1.5–3(–4), not or only very slightly incised at the cross walls; wall 3–8(–20) µm thick, in some species thickened especially at the cross walls; chloroplasts openly reticulate with numerous pyrenoids; nuclei numerous.

Reproduction. Unknown.

Distribution. From Esperance, W. Aust., to the north coast of Kangaroo I., S. Aust., and around Tas.

Habitat. Loose-lying in calm-water situations.

[After Womersley, Mar. Benthic Fl. Southern Australia I: 176 (1984)]

John Huisman & Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Swan Coastal Plain, Warren.
IBRA Subregions
Perth, Warren.
Local Government Areas (LGAs)
Manjimup.