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The journal of the Western Australian Herbarium

Nuytsia is an open access, peer-reviewed journal that publishes original papers on the systematics, taxonomy and nomenclature of Australian (particularly Western Australian) plants, algae and fungi, especially descriptions of taxa, revisions, identification guides, nomenclatural and taxonomic issues, systematic analyses and classifications, censuses, and information on invasive species.

Nuytsia was founded in 1970 and is named after the iconic Western Australian Christmas Tree Nuytsia floribunda, an arborescent root hemiparasite endemic to south-west Western Australia. One-fifth of all published native plant names for Western Australia have been formally established in the journal, including over one-quarter of the conservation-listed taxa in the State. Refer to the cumulative index to scientific names published in Nuytsia for details.

Nuytsia papers are published electronically, singly or in small batches. For authors, this will provide a short turn-around time between submission and publication of papers. For readers, it will mean being up-to-date with the very latest taxonomic research in Western Australia. Subscribe to our Publication Alert via news feed to be informed of new papers as they are published.

Readers will be able to purchase a hard copy of each volume at the end of the year (see Subscription / Exchange for more information). A limited number of hard copies of each volume will also be distributed to key botanical libraries around the world.

New to Nuytsia

Published on Thursday, 26 October 2023.

Marasmius australotrichotus (Marasmiaceae), a new setose species from Australia, and an intriguing range extension for M. paratrichotus

GUARD, F., DEARNALEY, J., LEBEL, T., BARRETT, M.D. AND BOUGHER, N.L., Nuytsia 34: 203–219 (2023)

Based on morphological characters and molecular analysis of the nrITS regions, Marasmius australotrichotus F.E.Guard, J.Dearnaley & T.Lebel, the first known Australian species in sect. Sicci, ser. Spinulosi is described. The distribution of M. paratrichotus is extended from the West African island nation of São Tomé and Príncipe (ST&P) to Christmas Island (CI) and northern Western Australia (WA). Classification, distinguishing characters, habitat variability, geographic distribution and possible dispersal mechanisms are discussed.

Molecular analysis identifies a red seaweed common in the Swan Estuary as Gracilaria transtasmanica (Gracilariales: Gracilariaceae)

HUISMAN, J.M., ZUCCARELLO, G.C. AND LIN, S.-M., Nuytsia 34: 221–226 (2023)

Eremophila improvisa, E. rubicunda and E. saxatilis (Scrophulariaceae), three new species from Western Australia

BROWN, A.P. AND DAVIS, R.W., Nuytsia 34: 225–260 (2023)

Revision of the connate bract group allied to Goodenia panduriformis (Goodeniaceae), including recognition of three new species

SHEPHERD, K.A. AND LEPSCHI, B.J., Nuytsia 34: 227–254 (2023)

The taxonomy of several species of Goodenia with connate bracts allied to G. panduriformis (A.Cunn. ex Benth.) K.A.Sheph. was evaluated through morphological assessment of herbarium specimens. Consequently, the circumscriptions of G. connata (F.Muell.) K.A.Sheph., G. discophora (F.Muell.) K.A.Sheph., G. daviesii (F.Muell.) K.A.Sheph. and G. panduriformis are revised and new descriptions provided. Three new species, G. aluta K.A.Sheph. & Lepschi, G. crescentiloba K.A.Sheph. & Lepschi and G. obscurata K.A.Sheph. & Lepschi are also recognised, the latter being listed as a species of conservation concern. Further, a replacement lectotype for Velleia helmsii K.Krause is designated and a key, distribution maps and figures are included.

Four new species of Triodia (Poaceae) from the Pilbara and adjacent bioregions, Western Australia

BARRETT, M.D., DE KOCK, P.-L. AND DILLON, S.J., Nuytsia 34: 261–294 (2023)

The Australian hummock genus Triodia R.Br. is currently undergoing taxonomic revision in light of new collections from surveys of remote Australia and increased resolution provided by molecular methods. This paper describes four new species of Triodia from the Pilbara and adjacent IBRA bioregions: T. avenoides M.D.Barrett, T. degreyensis M.D.Barrett, T. karijini M.D.Barrett & S.J.Dillon, and T. lutiteana M.D.Barrett & Kock. All four species are ‘soft’ spinifexes with elongate glumes and lemma lobes subulate to awned, and are only known from the Pilbara and adjacent Carnarvon and Gascoyne regions of Western Australia. Triodia degreyensis is known from a single range system in the north-eastern Pilbara. The taxon formerly known by the phrase name T. sp. Karijini (S. van Leeuwen 4111) is formally described here as T. karijini, and is restricted to mountains above 900 m altitude in the eastern Hamersley Range. Triodia lutiteana is only known from shale substrates north-west of Tom Price, and may be a polyploid species. The new species T. avenoides is segregated from T. schinzii (Henrard) Lazarides based on morphological and molecular differences and a disjunct distribution on sand sheets and dunes of the Carnarvon basin. The central Australian species T. helmsii (C.E.Hubb.) Lazarides is newly synonymised with T. schinzii, since no clear morphological or genetic differences between the two could be established. An amended description of T. schinzii is provided to accommodate these alterations to the species concept. Diagnostic character combinations for each species are given to allow discrimination from all other Triodia species. Triodia degreyensis, T. karijini and T. lutiteana are known from between one and four localities, and have priority conservation statuses, while T. avenoides and T. schinzii are not considered threatened. With the species described here, a total of 29 species and one hybrid are now known from the Pilbara bioregion and its immediate surrounds.

Corrigendum to: Marasmius australotrichotus (Marasmiaceae), a new setose species from Australia, and an intriguing range extension for M. paratrichotus

GUARD, F., DEARNALEY, J., LEBEL, T., BARRETT, M.D. AND BOUGHER, N.L., Nuytsia 34: 295–297 (2023)