Incorporation of the Australian genera Halosarcia, Pachycornia, Sclerostegia and Tegicornia into Tecticornia (Salicornioideae, Chenopodiaceae)

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Contents Vol 20(4)

doi:10.1071/SB07002

Incorporation of the Australian genera Halosarcia, Pachycornia, Sclerostegia and Tegicornia into Tecticornia (Salicornioideae, Chenopodiaceae)

Kelly A. Shepherd ^A ^B ^C, Paul G. Wilson ^A

^A Western Australian Herbarium, Department of Environment and Conservation, Science Division, Locked Bag 104, Bentley Delivery Centre, WA 6983, Australia.
^B School of Plant Biology, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6065, Australia.
^C Corresponding author. Email: Kelly.Shepherd@dec.wa.gov.au





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Australian Systematic Botany 20(4) 319–331 http://dx.doi.org/10.1071/SB07002
Submitted: 12 January 2007 Accepted: 8 May 2007 Published online: 5 September 2007

Abstract

Recent molecular and morphological studies have shown that the genera Halosarcia, Pachycornia, Sclerostegia, Tecticornia and Tegicornia are closely related and form a monophyletic group. Support for the monophyly of the individual genera in the group is lacking, with the smaller genera nested in a paraphyletic Halosarcia. In light of this it is proposed that these genera be subsumed into a single genus for which the most appropriate available name is Tecticornia. A conspectus is provided of all species in the expanded Tecticornia, with new combinations given for 30 species and 13 subspecies.