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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 Conservation listings displayed on Florabase may also be out of date.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.

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Boodleopsis siphonacea A.Gepp & E.Gepp

Reference
Siboga-Exped.Monogr. 62:64-65, 141, Pl. XVII, Figs 147-152 (1911)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus tufted, to 5 mm tall, with prostrate and irregularly constricted siphons 50–75 μm diam., attached by tapering rhizoids 8–20 μm diam.; erect siphons terete, 17–25 μm diam. Branches 50–900 μm long, more elongate distally, evenly constricted at branch bases and often with slight constrictions elsewhere. Siphons with numerous spherical to ellipsoidal chloroplasts and amyloplasts 2–3 μm diam. Walls of lower siphons with faint striations. Zoidangia forming as inflated tips of lateral siphons near base, spherical to clavate, 50–75 μm diam.

Distribution. Known from Indonesia and northern W.A., but other species from elsewhere might be synonymous.

Habitat. Epiphytic on Avicennia marina pneumatophores in the intertidal.

[After Huisman, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 144 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon.
IBRA Subregions
Wooramel.
IMCRA Regions
Pilbara (nearshore), Shark Bay.
Local Government Areas (LGAs)
Karratha, Shark Bay.