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Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants

Australian Systematic Botany

Australian Systematic Botany

Australian Systematic Botany publishes papers and critical reviews that aim to advance systematic botany and related aspects of biogeography and evolution of all plant groups. Read more about the journalMore

Editor-in-Chief: Darren Crayn

Publishing Model: Hybrid. Open Access options available.

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These articles are the latest published in the journal. Australian Systematic Botany has moved to a continuous publication model. More information is available on our Continuous Publication page.

Published online 20 February 2024

SB23014Revision of the Pultenaea setulosa species complex (Fabaceae: Mirbelieae) including 14 new species

Russell L. Barrett 0000-0003-0360-8321, James A. R. Clugston 0000-0002-3653-6953, David E. Albrecht, Lesley Elkan, John R. Hosking, Peter C. Jobson, Seanna F. McCune, Andrew E. Orme, Ruth L. Palsson 0000-0003-1460-8239, Matthew A. M. Renner 0000-0003-2286-7257, Catherine Wardrop and Peter H. Weston

Field photograph of a flowering branch of Pultenaea purdieae R.L.Barrett & Clugston.

A taxonomic revision of the Pultenaea setulosa species complex is presented, recognising 18 species. Pultenaea setulosa is endemic to south-east Queensland. We reinstate Pultenaea boormanii, P. campbellii (endemic to NSW) and P. lapidosa (endemic to Victoria). We describe 14 new species, all endemic to NSW: Pultenaea acanthocalyx, Pultenaea corrickiae, Pultenaea estelleae, Pultenaea farmeriana, Pultenaea hoskingii, Pultenaea imminuta, Pultenaea murrayi, Pultenaea palssoniae, Pultenaea praetermissa, Pultenaea purdieae, Pultenaea renneri, Pultenaea venusta, Pultenaea westonii and Pultenaea woolcockiorum. Pultenaea procumbens and P. setigera are recircumscribed. (Photograph credit: M. Fagg.)

Published online 19 February 2024

SB23023Solving taxonomic species complexes of Stevia (Eupatorieae, Asteraceae) in southern central Andes: a morphometric and statistical approach

Juan F. Rodríguez-Cravero 0000-0002-8478-9883, Mariana A. Grossi 0000-0002-9837-9156, Vanina G. Salgado 0000-0001-7430-5956 and Diego G. Gutiérrez 0000-0001-9292-235X

Stevia chamaedrys in Salta, Argentina (4300 m ASL) (left); Stevia mandonii in Jujuy, Argentina (3300 m ASL) (right).

In the heart of the South American central Andes lies a botanical treasure, namely, the Asteraceae family, among which the enigmatic Stevia genus takes centre stage. This study dives into the complex task of identifying distinct Stevia species in this region, where overlapping traits have posed a challenge. Through meticulous morphometric analyses and innovative methods, scientists have successfully pinpointed key traits that distinguish nine Stevia species, painting a clearer picture of this biodiversity hotspot. These findings not only refine our understanding of biodiversity but also hold potential implications for future conservation efforts. (Photographs by D. G. Gutiérrez.)

Published online 12 January 2024

SB23012Transfer of Cotula alpina to the genus Leptinella (Asteraceae: Anthemideae)

Alexander N. Schmidt-Lebuhn 0000-0002-7402-8941 and Alicia Grealy

Photograph of Australian alpine daisy, now transferred to the genus Leptinella.

The Australian alpine daisy Cotula alpina (Asteraceae) is transferred to the genus Leptinella on the basis of phylogenetic analysis of target-capture data and its creeping and rosette habit, which matches the latter genus. A lectotype is selected for the taxonomic basionym of the species, Ctenosperma alpinum. (Photograph credit: Alexander N. Schmidt-Lebuhn, CSIRO.)

The velvet-leaf hibiscus, Hibiscus krichauffianus.

Our investigation of the Australian arid zone specialist Hibiscus krichauffianus resulted in the discovery of two new species, H. verecundus and H. calcareus, both of which are described here. We also recircumscribe and lectotypify H. krichauffianus, and raise a phrase name entity. Distribution maps, figures, a table of morphological differences and a key are provided to identify these species. (Image credit: Dave Albrecht.)

Published online 28 November 2023

SB23006An updated account of Adiantum (Pteridaceae: subfamily Vittarioideae) in Thailand

Sahanat Petchsri 0000-0003-4032-2728 and Thaweesakdi Boonkerd
pp. 437-456

Twenty taxa of Thai’s maidenhair ferns in genus Adiantum L. (Pteridaceae) is here revised. The first key to all Thai’s Adiantum species are provided here. The genus consists of 19 indigenous (5 endemics) and 1 naturalised species, distributed in various habitats throughout Thailand. A new recorded species, A. gomphophyllum, from Phang Na Province, and two accepted infraspecifics of A. philippense are also recognised.

A species of green algae, Rhipilia psammophila, growing in south-western Australia.

Taxonomic studies of Australian seaweeds are showing a wealth of undiscovered species. In this paper, a new species of green seaweed, Rhipilia psammophila, is described for specimens from south-western Australia, and a closely related species currently known as Chlorodesmis baculifera is transferred to Rhipilia. Morphological features are proving unreliable in distinguishing genera in this group and molecular analyses are essential. (Photograph by John Huisman.)

Published online 27 September 2023

SB23007Taxonomic revision of Australian Erythrophleum (Fabaceae: Caesalpinioideae) including description of two new species

Russell L. Barrett 0000-0003-0360-8321 and Matthew D. Barrett 0000-0002-2926-4291
pp. 401-426

Photograph of Erythrophleum arenarium, a species of ironwood in Australia.

Ironwood, Erythrophleum chlorostachys, is an iconic legume tree in the northern Australian savanna, with relatives in Asia and Africa. Fieldwork across northern Australia has discovered two new species, one from around The Great Sandy Desert, and one spanning from the west Kimberley to Cape York. Recognition of three distinct species, on the basis of morphology and DNA data, has implications for the conservation and utilisation of this genus, significant in indigenous cultures in northern Australia. (Photograph by Geoff Byrne.)

Published online 05 September 2023

SB22031Eucalyptus cryptica (Myrtaceae): a critically endangered new species

Trevor C. Wilson 0000-0002-9026-0521, Susan Rutherford 0000-0001-9723-0790, Jia-Yee S. Yap 0000-0002-9141-6006, Steven M. Douglas, Enhua Lee and Maurizio Rossetto 0000-0002-4878-9114
pp. 386-400

The critically endangered Eucalyptus sp. Cattai has recently been identified as a species by a population genomic study. Still lacking a name, measurements and further genomic analysis were provided here to produce a robust description for the new species E. cryptica. The identification of a new species of tree is exceedingly rare in a metropolitan area and the provision of a name will provide stronger recognition that the species merits conservation.

Just Accepted

These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.

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  1. Nine new species of Australian Nicotiana (Solanaceae)

    Australian Systematic Botany 36 (3)
    Mark W. Chase 0000-0002-9927-4938, Maarten J. M. Christenhusz 0000-0003-1398-8743, Luiz A. Cauz-Santos 0000-0003-1694-2433, Felipe Nollet 0000-0002-1362-685X, Jeremy J. Bruhl 0000-0001-9112-4436, Damien D. Andrew 0000-0001-8675-066X, Ruth Palsson 0000-0003-1460-8239, Richard W. Jobson 0000-0002-1822-9634, Guy M. Taseski 0000-0003-2243-3408, Rosabelle Samuel 0000-0003-0197-4854

Committee on Publication Ethics

Best Student Paper

The Best Student Paper published in 2022 has been awarded to Catherine Clowes.

Plant Systematics and Biogeography in the Australasian Tropics

Special Issues vol. 31 nos 5 & 6, vol. 32 nos 2 & 3 and vol. 32 no. 4 form special editions on Plant Systematics and Biogeography in the Australasian Tropics containing Part 1, Part 2 & Part 3, respectively.