Steven B. Janssens,^1,* Stefan Vinckier,^2,** Katrien Bosselaers,^3,*** Erik F. Smets,^3,4,**** Suzy Huysmans<sup>5,*****

1</sup>aBotanic Garden Meise, Meise, Belgium
²bLaboratory of Angiogenesis and Vascular Metabolism, Flanders Institute for Biotechnology, VIB-KULeu
³cLaboratory of Plant Conservation and Population Biology, Leuven, Belgium
⁴dNaturalis Biodiversity Center, Leiden University, Leiden, The Netherlands
⁵eFaculty of Science, University of Antwerp, Antwerpen, Belgium

^*Steven B. Janssens is a research scientist at the Botanic Garden Meise. His specialist area of interest is the ecology and evolution of angiosperms with a focus on Balsaminaceae, Rubiaceae and Musaceae. For this he uses a large number of techniques such as palynology, biogeography and molecular genetics. He obtained his PhD at KU Leuven.
^**Stefan Vinckier is a staff scientist at the VIB-KU Leuven Center for Cancer Biology where he is specialised in different microscopy and histology techniques. His PhD dissertation focused on the morphology and ultrastructural diversity of orbicules in angiosperms.
^***Katrien Bosselaers obtained her Master of Biology at the KU Leuven. The focus of her master dissertation was on the pollen morphology of Balsaminaceae.
^****Erik Smets is scientific director at the Naturalis Biodiversity Center in Leiden as well as professor of Systematic botany at KU Leuven and the University of Leiden. His major research interests are in the field of phylogeny, morphology and anatomy of flowering plants.
^*****Suzy Huysmans is a palynologist whose area of interest is the palynological diversity and evolution in angiosperms with a focus on orbicules and the Rubiaceae. She obtained her PhD at the KU Leuven and now works at the University of Antwerp where she is director of the Faculty of Science.