Collection of reprints
All areas of the herbarium are open to scientists, where feasible, but we do ask visitors to contact us in advance of the intended visit.
About one sixth of the collection was destroyed during the Second World War. Only a few specimens remain in the affected families, therefore it is advised to send an to check if the requested specimen(s) still exist.
The diatom collection by Grunow is only accessible to registered visitors; please Dr. Tanja M. Schuster, Curator of the Cryptogam herbarium.
It is possible to compare the specimens in W with your own material but, for security reasons, fresh or dried specimens must be declared and receive a deep-freezing treatment before entering the herbarium. In such instances, the material in question must arrive two weeks before the proposed visit.