Our websites have changed 

Visit the following websites:

• https://science.naturalis.nl/en/collection/naturalis-collections/botany/ for general information about the NHN and information about the Leiden branch
• https://hortus.leidenuniv.nl for information about the Hortus botanicus Leiden
• https://www.wur.nl/en/Expertise-Services/Chair-groups/Plant-Sciences/Biosystematics-Group.htm for information about the Wageningen branch