This sub-collection comprises dry and alcohol specimens as well as large-format pieces of various plant groups, including original collections and showpieces for teaching purposes. Significant parts of the alcohol collection come from former colonies. These include the mushroom specimens collected by F. Eichelbaum in Tanzania in 1903. Together with A. Möller's fungal specimens, which were collected in Brazil between 1890 and 1893, these specimens are among the most valuable objects for determining plant taxonomy and systematics. Further plant specimens from colonial contexts were collected by H.K.A. Winkler in Borneo between 1924 and 1925 and by J. Mildbraed in Cameroon between 1910 and 1911. A long-standing focus of taxonomic research has also been the nocturnal plants from the collection of H.E.K. Hartmann from the years 1966 to 2007.