- Czech Academy of Sciences
- Institute of Botany of the Czech Academy of Sciences
- Botanical garden (Prague)
- Faculty of Science, University of South Bohemia in České Budějovice
- Faculty of Science, Masaryk University
- Faculty of Science, University of Ostrava
- Faculty of Science, University of Hradec Králové
- Faculty of Science, Purkyně University in Ústí nad Labem
- Faculty of Science, Charles University
- Faculty of Science, Palacký University Olomouc
- Institut of Botany of the Slovak Academy of Sciences
- Slovenská botanická spoločnosť (Slovak Botanical Society, websites only in Slovak)
