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 Conservation listings displayed on Florabase may also be out of date.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

Nuytsia
The journal of the Western Australian Herbarium

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Volumes 1–14 are available for download via the Biodiversity Heritage Library’s (BHL) page for Nuytsia.


Displaying records 581–583 of 583.

Amphipogon indutus (Poaceae), a new conservation-listed species from south-west Western Australia

KARUNAKARAM, M. AND MACFARLANE, T.D., Nuytsia 37: 85–93 (2026)

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Amphipogon indutus Karunakar. & T.Macfarlane from south-west Western Australia is described and the morphology and leaf cross-sectional anatomy are illustrated with photographs. The new species is currently known from two localities in the Southern Cross area, one of which is under threat. 

New taxa of Caladenia (Orchidaceae) from south-west Western Australia – six new species and four new subspecies

BROCKMAN, G. AND BROWN, A.P., Nuytsia 37: 94–117 (2026)

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Six species – Caladenia allochroa G.Brockman & A.P.Br., C. haemantha G.Brockman & A.P.Br., C. lawsonii G.Brockman & A.P.Br., C. primotina G.Brockman & A.P.Br., C. salina G.Brockman & A.P.Br. and C. silvicola G.Brockman & A.P.Br., and four subspecies, C. caesarea (Domin) M.A.Clem. & Hopper subsp. adontia G.Brockman & A.P.Br., C. flava R.Br. subsp. albescens G.Brockman & A.P.Br., C. flava R.Br subsp. secunda G.Brockman & A.P.Br. and C. longicauda Lindl. subsp. nematilis G.Brockman & A.P.Br., are formally described, their relationships with related taxa discussed and the conservation status of rare taxa assessed. 

The red algal genus Callithamniella (Rhodophyta, Ceramiaceae) in Australia, including two new species, C. cygnora and C. carolyniae

HUISMAN, J.M., MCLAY, T.G.B. AND METTI, Y., Nuytsia 37: 120–132 (2026)

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Callithamniella Feldm.-Maz. comprises five currently accepted species characterised by a filamentous, uncorticated thallus with prostrate and erect axes, each with at most only a single vegetative lateral branch per cell. The genus is widely distributed but seemingly rarely encountered, and the only known reproductive structures are tetrasporangia, spermatangia and carpogonial branches. Post-fertilization development has not been recorded. Callithamniella flexilis Baardseth is currently the only species of this genus recognised in Australia, recorded from north of Coffs Harbour in New South Wales. The present study was prompted by the collection of an unknown species from the Swan Estuary, Perth, Western Australia, here named as C. cygnora Huisman, McLay & Metti. Additionally, an unnamed taxon from the south coast distinguished by the presence of relatively large vesicular cells, is also confirmed as distinct and named C. carolyniae Huisman, McLay & Metti. DNA sequence analyses of C. cygnora confirm the inclusion of Callithamniella in the Dohrnielleae tribe of the Ceramiaceae, closely related to Antithamnionella Lyle. An updated description for C. flexilis is provided along with a key to the Australian species of the genus.