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Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants
RESEARCH ARTICLE

Generic concepts in Ericaceae: Styphelioideae – the Monotoca group

D. E. Albrecht A E , C. T. Owens B , C. M. Weiller C and C. J. Quinn B D
+ Author Affiliations
- Author Affiliations

A Alice Springs Herbarium, Department of Natural Resources, Environment, Arts and Sport, PO Box 1120, Alice Springs, NT 0871, Australia.

B School of Biological Science, University of New South Wales, Sydney, NSW 2052, Australia.

C Biotext, PO Box 178, Deakin West, ACT 2600, Australia.

D Royal Botanic Gardens, Mrs Macquaries Road, Sydney, NSW 2000, Australia.

E Corresponding author. Email: dave.albrecht@nt.gov.au

Australian Systematic Botany 23(5) 320-332 https://doi.org/10.1071/SB10009
Submitted: 25 February 2010  Accepted: 10 September 2010   Published: 3 November 2010

Abstract

A morphological dataset for Monotoca R.Br. and its putative allies was subjected to parsimony analysis, augmented by a sequence dataset (the matK gene and the atpB–rbcL intergenic spacer) for selected species. Monotoca was found to be paraphyletic: three species currently assigned to Monotoca, together with two as yet undescribed species, all from south-western Western Australia, are placed in a clade sister to Oligarrhena, tribe Oligarrheneae, whereas the remaining species are robustly grouped as Monotoca sensu stricto within tribe Styphelieae. The former group is described as a new genus, Dielsiodoxa Albr., which is endemic in Western Australia. Cyathodes dealbata from Tasmania is placed sister to Monotoca sensu stricto in both analyses, and shows no close relationship with any species of Cyathodes sensu lato or its segregates. A new monotypic genus, Montitega C.M.Weiller, is erected for this taxon.


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