A new classification for subtribe Pterostylidinae (Orchidaceae), reaffirming Pterostylis in the broad sense
Jasmine K. Janes A C and Marco F. Duretto BA School of Plant Science, University of Tasmania, Private Bag 55, Hobart, Tas. 7001, Australia.
B Tasmanian Herbarium, Tasmanian Museum and Art Gallery, Private Bag 4, Hobart, Tas. 7001, Australia.
C Corresponding author. Email: jkjanes@utas.edu.au
Australian Systematic Botany 23(4) 260-269 https://doi.org/10.1071/SB09052
Submitted: 18 November 2009 Accepted: 11 May 2010 Published: 31 August 2010
Abstract
A new classification for subtribe Pterostylidinae (Orchidaceae) is formally described in which there is one genus, Pterostylis R.Br., two subgenera and 10 sections. Five new combinations are made for this classification at the ranks of subgenus and section, viz. Pt. subg. Oligochaetochilus (Szlach.) Janes & Duretto, Pt. sect. Parviflorae (Benth.) Janes & Duretto, Pt. sect. Pharochilum (D.L.Jones & M.A.Clem.) Janes & Duretto, Pt. sect. Stamnorchis (D.L.Jones & M.A.Clem.) Janes & Duretto and Pt. sect. Urochilus (D.L.Jones & M.A.Clem.) Janes & Duretto. Pt. ser. Parviflorae Benth. is lectotypified. To complete the revision, seven new species-level combinations are made for two species from Western Australia, one from New South Wales and four from Queensland, viz. Pt. anaclasta (D.L.Jones) Janes & Duretto, Pt. extranea (D.L.Jones) Janes & Duretto, Pt. pearsonii (D.L.Jones) Janes & Duretto, Pt. pedina (D.L.Jones) Janes & Duretto, Pt. sinuata (D.L.Jones) Janes & Duretto, Pt. timothyi (D.L.Jones) Janes & Duretto and Pt. thulia (D.L.Jones) Janes & Duretto.
Additional keywords: greenhoods, orchids, Pterostylidinae, Pterostylis, systematics, taxonomy.
Acknowledgements
This research was funded by a Discovery grant (DPO557260) from the Australian Research Council, an Australian Postgraduate Award to the first author and research funding from the Australian Systematic Botany Society (Hansjörg Eichler Scientific Research Fund). The authors thank Hans Wapstra for identification confirmation. The authors are indebted to Dr Dorothy A. Steane and Associate Professor René E. Vaillancourt from the School of Plant Science (University of Tasmania) for support throughout the project; Dr Wendy Potts from the Threatened Species Section (Department Primary Industries and Water, Tas.); and Dr Gay McKinnon and James Marthick from the School of Plant Science (University of Tasmania) for their assistance and support.
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