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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

Acanthophora ramulosa Kütz.

Reference
Phycol.General. 437 (1843)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus erect, to 17 cm tall, red to purple (often drying black), arising from a small discoid holdfast or with short stolons. Primary axes 0.5–1.5 mm diam., with subopposite to alternate basally slightly tapering or unconstricted lateral indeterminate branches, these giving the thallus a pyramidal outline. All branches with sparse to numerous short spines. Branch primordia rounded, not associated with a spine, the spines arising at apices as the branch matures.

Reproduction. Reproductive structures not observed.

Distribution. Warmer waters of the Indian Ocean and western Atlantic.

Habitat. Epilithic in the shallow subtidal.

[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 480–482 (2018)]

John Huisman & Olga Nazarova, 3 August 2021

Distribution

IBRA Regions
Dampierland.
IBRA Subregions
Pindanland.
IMCRA Regions
Canning, Kimberley, Shark Bay.
Local Government Areas (LGAs)
Broome, Derby-West Kimberley, Shark Bay, Wyndham-East Kimberley.