The Afro-Madagascan genus Warneckea (Melastomataceae): Molecular systematics and revised infrageneric classification

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Abstract:

Warneckea consists of shrubs and small trees endemic to tropical forests in Africa, Madagascar, and Mauritius. Phylogenetic analyses of sequence data from the transcribed spacers of nuclear ribosomal DNA (ETS, ITS) indicate that W. sect. Carnosa Jacq.-Fél. (1 sp., East Africa and Madagascar) is a divergent element that is best treated at subgeneric level. The analyses recovered three major lineages in W. subg. Warneckea, together forming a basal trichotomy. The three lineages represent W. sect. Strychnoidea (western and central Africa), sect. Warneckea (East Africa, Madagascar, Mauritius), and a third group with three West African species (W. fascicularis, W. guineensis, W. mangrovensis) comprising the newly proposed W. sect. Guineensea.

Keywords: AFRICA; MADAGASCAR; MELASTOMATACEAE; SYSTEMATICS; WARNECKEA

Document Type: Research Article

Affiliations: 1: School of Biological and Conservation Sciences, University of KwaZulu-Natal, Pietermaritzburg campus, Private Bag X01, Scottsville 3209, South Africa 2: Department of Systematic Biology, Evolutionary Biology Centre, Norbyvägen 18D, 752 36 Uppsala, Sweden

Publication date: February 1, 2010

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