1. Department of Identification & Naming (Africa & Madagascar), Royal Botanic Gardens, Kew, Richmond, Surrey, UK
2. Systematic and Evolutionary Botany Lab, Ghent University, Ghent, Belgium
3. Applied Taxonomic Research Center, Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
4. Núcleo de Pesquisa em Palinologia, Centro de Pesquisa em Plantas Vasculares, Instituto de Botânica (IBt), São Paulo, Brazil
5. Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, UK