The showy and the shy: reinstatement of two species from Ptilotus gaudichaudii (Amaranthaceae)
Timothy A. Hammer A C , Robert W. Davis B and Kevin R. Thiele AA School of Biological Sciences, Faculty of Science, The University of Western Australia, Crawley, WA 6009, Australia.
B Western Australian Herbarium, Department of Biodiversity Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre, WA 6983, Australia.
C Corresponding author. Email: timothy.hammer@research.uwa.edu.au
Australian Systematic Botany 31(1) 1-7 https://doi.org/10.1071/SB17026
Submitted: 6 May 2017 Accepted: 3 October 2017 Published: 16 February 2018
Abstract
Ptilotus R.Br. (Amaranthaceae) is a widespread and species-rich Australian genus. One of the most common arid species, Ptilotus gaudichaudii (Steud.) J.M.Black (paper foxtail), currently comprises the following three subspecies: subsp. gaudichaudii, subsp. eremita (S.Moore) Lally and subsp. parviflorus (Benth.) Lally. In the present study, we re-evaluate the morphological basis for the recognition and status of infraspecies in P. gaudichaudii. Evidence from herbarium and field observations supports the reinstatement of Ptilotus gaudichaudii subsp. eremita and subsp. parviflorus to the rank of species as P. eremita (S.Moore) T.Hammer & R.W.Davis and P. modestus T.Hammer respectively.
Additional keywords: new combination, nomenclature, taxonomy.
References
Benl G (1959) Beitrag zu einer Revision der Gattung Ptilotus R.Br. (Amaranthaceae) 2. Teil. Mitteilungen der Botanischen Staatssammlung München 3, 34–43.Bentham G (1870) ‘Flora Australiensis: a Description of the Plants of the Australian Territory.’ (L. Reeve & Co: London)
Hammer T, Davis R, Thiele K (2015) A molecular framework phylogeny for Ptilotus (Amaranthaceae): evidence for the rapid diversification of an arid Australian genus. Taxon 64, 272–285.
| A molecular framework phylogeny for Ptilotus (Amaranthaceae): evidence for the rapid diversification of an arid Australian genus.Crossref | GoogleScholarGoogle Scholar |
Lally TR, Barker WR (2010) Taxonomic notes on South Australian Ptilotus (Amaranthaceae). Journal of the Adelaide Botanic Gardens 24, 47–52.
McNeill J, Barrie FR, Buck WR, Demoulin V, Greuter W, Hawksworth DL, Herendeen PS, Knapp S, Marhold K, Prado J, Prud’homme van Reine WF, Smith GF, Wiersema JH, Turland NJ (2012) ‘International Code of Nomenclature for Algae, Fungi, and Plants (Melbourne Code)’, adopted by the Eighteenth International Botanical Congress, July 2011, Melbourne, Vic., Australia. Regnum Vegetabile, vol. 154. (Koeltz Scientific Books: Königstein, Germany)
Moore S (1899) The botanical results of a journey into the interior of Western Australia. Journal of the Linnean Society, Botany 34, 171–261.
von Mueller FJH (1852) Diagnosis et descriptions plantarum novarum quas in Nova Hollandia australi praecipue in regionibus interioribus. Linnaea 25, 367–445.
von Mueller FJH (1864) ‘Fragmenta Phytographiae Australiae, Vol. 4.’ (Government Printer: Melbourne)
