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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.

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Gayliella macrotricha (Feldm.-Maz.) Huisman

Reference
Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae 416 (2018)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus red, with prostrate and erect axes to 4 mm long, attached by rhizoids arising from periaxial cells of lower axes. Erect axes subalternately branched every 8–10 cells in primary axes and every 12–16 cells in lateral axes; apices straight to curved, not circinate. Periaxial cells 5 (–6), each producing basipetally a transversely aligned cell that subsequently cuts off 1 or 2 cells by oblique divisions from the upper or lower corners, and acropetally 2 or 3 cells obliquely that overlap the periaxial cell slightly and subsequently cut off an additional pair of cells. Mature nodes to 5 or 6 cells long. Distal nodes commonly with distal whorls of elongate hair cells.

Reproduction. Tetrasporangia 1–3 per node, involucrate, spherical, 60–70 µm diam. (including wall), tetrahedrally divided but often appearing decussate.

Distribution. Known from Mauritius, French Polynesia and the Rowley Shoals, probably widespread in the Indo-Pacific.

Habitat. Epiphytic in the subtidal.

[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 416 (2018)]