The section of Lichenology and Bryology deals with lichens and bryophytes.

Among other research, the section of Mycology concentrates on the biodiversity and -geography of fungi.

The section Phanerogamen I deals with topics such as land use, climate changeund and the biodiversity cultural landscapes in Central Europe within different projects and collaborations.

The research of the section  Phanerogamen II focuses on systematics and evolution of Central European plants (Biodiversity and Systematics). One of the section´s main subjects is the reticulate evolution in the genus Rosa.