title: Multiple routes underground? Frost alone cannot explain the evolution of underground trees.
authors.affiliation: Department of Biology, McGill University, 1205 ave Docteur Penfield, Montreal, H3A 0G4, Quebec, Canada.|African Centre for DNA Barcoding, Department of Botany & Plant Biotechnology, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, Gauteng, South Africa.
authors.forename: T Jonathan
authors.identifier: http://orcid.org/0000-0002-2115-0257
authors.initials: TJ
authors.lastname: Davies
authors.affiliation: African Centre for DNA Barcoding, Department of Botany & Plant Biotechnology, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, Gauteng, South Africa.|Department of Plant Sciences, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa.
authors.forename: Barnabas H
authors.initials: BH
authors.lastname: Daru
authors.affiliation: African Centre for DNA Barcoding, Department of Botany & Plant Biotechnology, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, Gauteng, South Africa.
authors.forename: Michelle
authors.initials: M
authors.lastname: van der Bank
authors.affiliation: African Centre for DNA Barcoding, Department of Botany & Plant Biotechnology, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, Gauteng, South Africa.
authors.forename: Olivier
authors.initials: O
authors.lastname: Maurin
authors.affiliation: Department of Biological Sciences, University of Cape Town, Rondebosch, 7701, Western Cape, South Africa.|South African Environmental Observation Network, University of Cape Town, Rondebosch, 7701, Western Cape, South Africa.
authors.forename: William J
authors.initials: WJ
authors.lastname: Bond
mesh_terms: D005075:Biological Evolution; D005390:Fires; D005615:Freezing; D014197:Trees / Q000502:physiology*
keywords: African savanna; fire frequency; frost; geoxyles; underground trees