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New Zealand Journal of Botany Volume 42, 2004 - Issue 2
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Miscellany

The generic position of Austrofestuca littoralis and the reinstatement of Hookerochloa and Festucella (Poaceae) based on evidence from nuclear (ITS) and chloroplast (trnL‐trnF) DNA sequences

A. M. Hunter Department of Botany, University of Otago, P.O. Box 56, Dunedin, New Zealand
,
D. A. Orlovich Department of Botany, University of Otago, P.O. Box 56, Dunedin, New Zealand E-mail: [email protected]
,
K. M. Lloyd Landcare Research, Private Bag 1930, Dunedin, New Zealand
,
W. G. Lee Landcare Research, Private Bag 1930, Dunedin, New Zealand
&
D. J. Murphy Royal Botanic Gardens Melbourne, Birdwood Avenue, South Yarra, Victoria, 3141, Australia
Pages 253-262 | Received 30 Jun 2003, Accepted 01 Mar 2004, Published online: 17 Mar 2010
 
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Abstract

The segregation of the grass genus Austrofestuca from Festuca has been debated because in some respects Austrofestuca is morphologically similar to Poa. Analyses of DNA sequence information from nuclear (internal transcribed spacer) and chloroplast (trnL‐trnF) genomes indicate that Austrofestuca is not monophyletic. Austrofestuca littoralis is closely related to Poa, while A. eriopoda and A. hookeriana are placed in a clade containing Arctagrostis, Dupontia, and Arctophila. Whilst Austrofestuca littoralis is nested within the Poa clade, our data do not exclude the possibility that A. littoralis is sister to Poa. A range of morphological characters supports the differentiation of A. eriopoda and A. hookeriana from A. littoralis. We reinstate the genera Festucella and Hookerochloa to accommodate A. eriopoda and A. hookeriana, respectively.

Notes

Author for correspondence, Email: [email protected]

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