1. Ecological Plant Geography, Faculty of Geography University of Marburg Marburg Germany
2. Meise Botanic Garden Meise Belgium
3. Muséum National d'Histoire Naturelle Institut de Systématique, Evolution, Biodiversité (UMR 7205) Paris France
4. Herbario QCA Escuela de Biología, Pontificia Universidad Católica del Ecuador Quito Ecuador
5. Laboratory for Climatology and Remote Sensing, Faculty of Geography University of Marburg Marburg Germany