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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Bornetella sphaerica (Zanardini) Solms

Reference
Ann.Jard.Bot.Buitenzorg 11:80 (1893)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus bright green, subspherical or spherical, to 10 mm diam. Structure with 10–14 primary laterals per whorl, each branching into 4–7 secondary segments that form a faceted cortex. Hairs absent. Gametangial cysts 4–12 per primary filament, spherical to obovoid, 125–155 µm diam., each with 4–8 gametangia.

Distribution. Widespead in tropical waters of the Indian and western Pacific Oceans. In W.A. known only from sporadic collections south to Barrow Island, but presumably widespread in the region.

Habitat. Occurs as individual thalli or in small clusters on rock, generally in shallow water.

[After Huisman, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 156 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IMCRA Regions
Kimberley, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs)
Ashburton, Karratha, Wyndham-East Kimberley.