Phylogenetic regionalization of marine plants reveals close evolutionary affinities among disjunct temperate assemblages

a Department of Organismic and Evolutionary Biology and Harvard University Herbaria, Harvard University, Cambridge, MA 02138, USA b Department of Plant Science, University of Pretoria, Private Bag X20, Hatfield, 0028 Pretoria, South Africa c Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot SL5 7PY, United Kingdom d Quebec Centre for Biodiversity Science, Department of Biology, McGill University, Montreal, QC H3A 0G4, Canada e Department of Biology, Concordia University, Montreal, QC H4B 1R6, Canada f Department of Environmental Sciences, University of South Africa, Florida campus, Florida 1710, South Africa g Department of Biology, McGill University, Montreal, QC H3A 0G4, Canada h African Centre for DNA Barcoding, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa