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Taxonomy, biogeography and evolution of plants
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RESEARCH ARTICLE
Contents Vol 22(6)

Saxipoa and Sylvipoa – two new genera and a new classification for Australian Poa (Poaceae: Poinae)

Robert J. Soreng A D , Lynn J. Gillespie B and Surrey W. L. Jacobs† C
+ Author Affiliations
- Author Affiliations

A Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013-7012, USA.

B Research Division, Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, Ontario K1P 6P4, Canada.

C National Herbarium, Royal Botanic Gardens, Sydney, NSW 2000, Australia.

D Corresponding author. Email: sorengr@si.edu

Australian Systematic Botany 22(6) 401-412 https://doi.org/10.1071/SB09003
Submitted: 13 January 2009  Accepted: 21 April 2009   Published: 21 December 2009

Abstract

Two species are removed from the genus Poa in Australia on the basis of morphology and DNA and placed in new genera. One is placed in Saxipoa Soreng, L.J.Gillespie & S.W.L.Jacobs – type: S. saxicola (R.Br.) Soreng, L.J.Gillespie & S.W.L.Jacobs; and one is placed in Sylvipoa Soreng, L.J.Gillespie & S.W.L.Jacobs – type: S. queenslandica (C.E.Hubb.) Soreng, L.J.Gillespie & S.W.L.Jacobs. An infrageneric classification of Poa is proposed that places all 41 indigenous Australian species in P. subg. Poa supersect. Homalopoa sect. Brizoides. Thirty-three of these species, plus six species of New Zealand Poa, are placed in a new P. subsect. Australopoa Soreng, L.J.Gillespie & S.W.L.Jacobs. Two species are placed in P. subsect. Austrofestuca (Tzvelev) Soreng, L.J.Gillespie & S.W.L.Jacobs, one in P. subsect. Brizoides (Pilg. ex Potztal) Soreng, L.J.Gillespie & S.W.L.Jacobs, and one in P. subsect. Neuropoa (Clayton) Soreng, L.J.Gillespie & S.W.L.Jacobs.


Acknowledgements

We thank Kelvin Lloyd, Terry Macfarlane, Paul Peterson, Bryan Simon and Neville Walsh for providing, or assisting, in our obtaining new collections; Alain Touwaide for improving the Latin diagnoses; MEL for loans and gift of some specimens of new and or rare species absent from US; Neville Walsh, Liliana Giussani and anonymous reviewers for constructive comments; and Canadian Museum of Nature and Smithsonian Institution for their support.


References


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† †Deceased.