A novel phylogenetic regionalization of phytogeographical zones of southern Africa reveals their hidden evolutionary affinities

African Centre for DNA Barcoding, University of Johannesburg, APK Campus, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa, Department of Plant Science, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa, Department of Environmental Sciences, University of South Africa, Florida Campus, Florida 1710, South Africa, Technische Universit€at M€ unchen, Plant Biodiversity Research, Emil-Ramann Strasse 2, 85354 Freising, Germany, Fynbos Node, South African Environmental Observation Network, Private Bag X7, 7735 Rhodes Drive, Newlands, South Africa, Statistics in Ecology, Environment and Conservation, Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa, Department of Biology, McGill University, Montreal, QC H3A 0G4, Canada