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Polar Biology

, Volume 30, Issue 7, pp 859–869 | Cite as

Biology and molecular phylogenetics of Nematoceras sulcatum, a second endemic orchid species from subantarctic Macquarie Island

  • Mark A. Clements
  • Anne M. Mackenzie
  • Geof R. Copson
  • Brian P. J. Molloy
  • Noel Carmichael
  • Mary L. Skotnicki
  • Patricia M. Selkirk
Original Paper

Abstract

A second orchid species, Nematoceras sulcatum M.A.Clem. et D.L.Jones, has been found on subantarctic Macquarie Island. A history of its discovery and recognition is provided. The morphology, biology and ecology of the new species are compared with N. dienemum (D.L.Jones) D.L.Jones, M.A.Clem. et Molloy, the other species of orchid on Macquarie Island. Molecular studies based on the internal transcribed spacer (ITS) region of nuclear ribosomal DNA reveal the phylogenetic relationship of the two Macquarie Island species compared to others in the genus from New Zealand and its Southern Ocean islands.

Keywords

Nematoceras Orchidaceae Subantartic Macquarie Island Internal transcribed spacer (ITS) 

Notes

Acknowledgments

This work was supported by an Australian Antarctic Science Grant. We thank the Australian Antarctic Division for logistical support, the Tasmanian Parks and Wildlife Service for access to Macquarie Island, and the Tasmanian Resource Management and Conservation for permission to collect plant specimens on Macquarie Island. New Zealand Nematoceras specimens used in this study are part of the “Molecular Survey of New Zealand Orchidaceae” (Part FRST contract C09618). We thank S. Wragg, A. Wilson and L. Jaggers for assistance with the figures; L. Gadd, D.L. Jones, P. McBride, H. Richards, J. Sheridan and J. Whinam for assisting with field collections and I. Sharma for assistance with sequencing. We especially thank David Jones for invaluable discussion on the manuscript.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Mark A. Clements
    • 1
  • Anne M. Mackenzie
    • 2
    • 3
  • Geof R. Copson
    • 4
  • Brian P. J. Molloy
    • 5
  • Noel Carmichael
    • 6
  • Mary L. Skotnicki
    • 2
  • Patricia M. Selkirk
    • 7
  1. 1.Centre for Plant Biodiversity ResearchCanberraAustralia
  2. 2.Research School of Biological Sciences, Institute of Advanced StudiesAustralian National UniversityCanberraAustralia
  3. 3.CSIRO, Plant IndustryCanberraAustralia
  4. 4.Department of Primary Industries and WaterHobartAustralia
  5. 5.Landcare ResearchLincolnNew Zealand
  6. 6.Parks and Wildlife ServiceMoonahAustralia
  7. 7.Department of Biological SciencesMacquarie UniversitySydneyAustralia

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