The branches of the National Herbarium of the Netherlands
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- The National Herbarium of the Netherlands - Leiden University branch (NHN-L) goes back a long time. It was founded as the Rijksherbarium in 1829 in Brussels by Royal Decree of King William I, then sovereign of the united Low Countries. C.L. Blume, an outstanding botanist and pioneer of Malesian botany, was its first director.
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- The year 1896 can be seen as the foundation date of the Herbarium Vadense, now the Wageningen University branch of the National Herbarium of the Netherlands (NHN-WAG), although substantial herbarium collections were already present in Wageningen before that date. The collections are focused on the flora of tropical Africa, and on cultivated plants and their wild relatives, and consist of approximately 800,000 specimens, supplemented by about 20,000 liquid-preserved specimens and 5000 wood samples, numerous botanical illustrations and a specialised library.
The research programme includes taxonomic and phylogenetic and biogeographical research of selected African plant families (Apocynaceae, Begoniaceae, Caesalpinoideae, Dracaena), contributions to floras, economic botany, and the (bio)systematics of cultivated plants and their wild relatives (especially Solanum and Lactuca), using morphological, cytological data, DNA sequences and AFLPs.
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- The former National Herbarium of the Netherlands - Universiteit Utrecht branch (NHN-U) was closed in 2008 when the Utrecht University implemented the 2005 decision to withdraw from the NHN, to cease all collection-related activities and to close its herbarium. Later it was agreed that the Utrecht herbarium collections will be relocated to Leiden.
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