The significance of Korber's Typenherbar, with an explanation of the locality abbreviations on his labels

The article explains the current structure of Korber's herbarium, located in the Nationaal Herbarium Nederland, Leiden (L). Originally, Korber's herbarium was composed of two separate collections. One part, Koerber Typenherbar, represents well-developed samples of each species, but they are in fact often fragments of specimens from the main collection (Koerber Stammherbar). Several examples are presented which demonstrate the relationship between both parts of the collection, various origins of specimens in the Koerber Typenherbar and their importance for lectotypification. Some specimens in Korber's herbarium were labelled only with an abbreviation or a symbol instead of a locality. All abbreviations/symbols with their explanations, kept in the Leiden herbarium archive, are listed here with information on the current names of the sampling localities in Poland and the Czech Republic.