Two new Australian species and a new combination in Muehlenbeckia (Polygonaceae)

Authors

  • Karen Wilson National Herbarium of New South Wales
  • Robert O Makinson

DOI:

https://doi.org/10.7751/telopea17685

Keywords:

Polygonaceae, Systematics, Australia, Fire-ephemeral, New Species

Abstract

Two new species of Muehlenbeckia Meisn. are described, and a key is provided to these and similar species in eastern Australia. Muehlenbeckia arnhemica K.L.Wilson & R.O.Makinson grows on rocky outcrops in the northern tropical part of the Northern Territory. Muehlenbeckia costata K.L.Wilson & R.O.Makinson is restricted to rocky outcrops in ranges in southeastern Queensland and northern New South Wales. A new combination is made for M. stenophylla F.Muell. as a subspecies of M. diclina (F.Muell.) F.Muell., and lectotypes are selected for these two names.

References

Brandbyge, J (1992) The genus Muehlenbeckia (Polygonaceae) in South and Central America. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 114: 349–416.

Classen-Bockhoff, R, and Bull-Hereñu, K (2013) Towards an ontogenetic understanding of inflorescence diversity. Annals of Botany 112: 1523‒1542.

Endress, PK (2010) Disentangling confusions in inflorescence morphology: patterns and diversity of reproductive shoot ramification in angiosperms. Journal of Systematics and Evolution 48: 225‒239.

Hunter, JT (1995) Some observations on the fire responses of two rare species in the Girraween and Bald Rock National Parks. Queensland Naturalist 33(5–6): 146–147.

Hunter, JT, and Clarke, PJ (1998) The vegetation of granitic outcrop communities on the New England Batholith of eastern Australia. Cunninghamia 5: 547–618.

Hunter, JT, Fallavollita, E, and Hunter, VH (1998) Observations on the ecology of Muehlenbeckia costata ms. (Polygonaceae), a rare fire ephemeral species occurring on the New England Batholith of north-eastern New South Wales and southern Queensland. The Victorian Naturalist 115(1): 9–17.

Hunter, JT (2011) Vegetation and floristics of the Pilliga East State Conservation Area, Willala Aboriginal Area, Pilliga Nature Reserve and the Ukerbarley addition. Unpublished report to the NSW Department of Environment, Climate Change and Water.

IUCN (2022) ‘IUCN Red List categories and criteria’. (International Union for Conservation of Nature: Gland, Switzerland)

Mueller, FJH von (1864) Fragmenta phytographiae australiae 4. (Government Printer: Melbourne)

NSW Office of Environment and Heritage (2013) Willala Aboriginal Area plan of management. (Office of Environment and Heritage: South Sydney)

NSW Office of Environment and Heritage (2023) Scrambling Lignum – profile. http://www.environment.nsw.gov.au/threatenedspeciesapp/profile.aspx?id=10547 (accessed 7 July 2023)

Russell-Smith, J (1986) The forest in motion: exploratory studies in western Arnhem Land, northern Australia. PhD thesis (Australian National University: Canberra)

Schuster, TM, Wilson, KL, and Kron, KA (2011) Phylogenetic relationships of Muehlenbeckia, Fallopia, and Reynoutria (Polygonaceae) investigated with chloroplast and nuclear sequence data. International Journal of Plant Science 172(8): 1083–1066.

Short, PS (2011) Polygonaceae. Pp. 1–6 in Short, PS, and Cowie, ID (eds), Flora of Darwin region vol. 1 (online edition). http://eflora.nt.gov.au/viewfile?file_id=1041 (accessed 26 April 2021)

Shorthouse DP (2010) SimpleMappr, an online tool to produce publication-quality point maps. [Retrieved from https://www.simplemappr.net/ (accessed 20 June 2023)

Walsh, NG (1996) Polygonaceae. Pp. 272‒295 in Walsh, NG, and Entwisle, TJ (eds) Flora of Victoria vol. 3, Dicotyledons Winteraceae to Myrtaceae. (Inkata Press: Melbourne)

Wilson, KL (1990) Polygonaceae. Pp. 278–293 in Harden, GJ (ed.), Flora of New South Wales, vol. 1. (University of NSW Press: Sydney)

Downloads

Published

2024-04-12

Issue

Section

Articles