edited by Nicky Allsopp, South African Environmental Observation Network (SAEON), Fynbos Node, South Africa; Jonathan F. Colville, Kirstenbosch Research Centre, South African National Biodiversity Institute, South Africa; G. Anthony Verboom, Bolus Herbarium and Department of Biological Sciences, University of Cape Town, South Africa ; consulting editor, Richard M. Cowling, Department of Botany, Nelson Mandela Metropolitan University, South Africa