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Article << Previous     |     Next >>   Contents Vol 25(5)

A taxonomic review of Triodia bunicola and T. scariosa (Poaceae: Chloridoideae), based on morphological and molecular data

Charlotte R. Hurry A , Neville G. Walsh A and Daniel J. Murphy A B

A National Herbarium of Victoria, Royal Botanic Gardens Melbourne, Vic. 3141, Australia.
B Corresponding author. Email: daniel.murphy@rbg.vic.gov.au

Australian Systematic Botany 25(5) 304-312 http://dx.doi.org/10.1071/SB10044
Submitted: 24 September 2010  Accepted: 5 June 2012   Published: 10 October 2012

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Triodia bunicola (S.W.L.Jacobs) Lazarides and T. scariosa N.T.Burb. (Poaceae: Chloridoideae) were analysed to test their status as different species. Thirty-one morphological characters were scored for multivariate analysis for both species. Nuclear (ITS) and chloroplast (rpl32–trnL) DNA data were analysed cladistically for 18 species of Triodia, with a focus on species from southern Australia to look at broader geographic patterns. Cladistic analysis and morphological ordination analysis indicated that T. bunicola should be regarded as a synonym of T. scariosa. DNA evidence also suggests that there is geographic partitioning for southern Australian species of Triodia.


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