Affiliation: | 1. Missouri Botanical Garden, PO Box 299, St. Louis, MO 63166, USA;2. Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, Pietermaritzburg, Scottsville 3209, South Africa;3. Compton Herbarium, South African National Biodiversity Institute, Private Bag X7, Claremont 7735, South Africa;4. Applied Behavioural Ecology and Ecosystem Research Unit (ABEERU), School of Environmental Sciences, University of South Africa, Private Bag X6, Florida 1710, South Africa |