ELLIOTT, TAMMY LYNN, Bolus Herbarium, Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch, 7701 Cape Town, South Africa Institut de recherche en biologie végétale, Département de sciences biologiques, Université de Montréal, 4101 Sherbrooke East, Montréal, Quebec, H1X 2B2, Canada, Canada