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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.

Ulvella viridis (Reinke) R.Nielsen, O'Kelly & B.Wysor

Reference
Phycologia 52:53 (2013)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus minute, bright green, endophytic in the walls of larger algae, of irregularly branched prostrate filaments to 200 µm long. Filaments generally remaining free, rarely forming a loose pseudoparenchyma. Cells mostly subisodiametric, squarish to rectangular in outline, mostly 10–15 µm diam., but some cells in actively growing regions more slender (c. 5 µm diam.). Cells with a parietal chloroplast and 1 or 2 pyrenoids. Hairs not observed.

Distribution. Recorded from most seas, but requiring confirmation.

Habitat. Endophytic in the cell walls of a variety of algae.

[After Huisman, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 24 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon.
IBRA Subregions
Wooramel.
Local Government Areas (LGAs)
Shark Bay.