The very valuable Agardh Herbarium, which was brought together by C. A. Agardh and his son J. G. Agardh during the 19th century, encompasses ca. 50000 collections of algae from all around the world. A large proportion of the specimens has been used for the description of new species and is type material. The entire Agardh Herbarium has already been registered in a separate database, but it is not yet available on the net.

Apart from the Agardh Herbarium, we also have a general herbarium with ca. 52000 collections of algae. Half of these are from the Nordic countries and the other half from the rest of the world. International exchange has enriched the collection with valuable material from particularly Europe, Australia, Japan and North America. The general collection is registered in our main database. So far, we have completed the databasing of all brown algae, red algae and charophytes from Norden.

Important collectors:

• Carl Adolf Agardh (1785-1859)
• Jacob Georg Agardh (1813-1901)
• Olof J. Hasslow (1871-1952) Characeae.
• David Hylmö (1883-1940)
• Harald Kylin (1879-1949) Rhodophyta.
• Otto Nordstedt (1838-1924) fresh water algae.
• L. G. Sjöstedt (1894-1975)
• L. J. Wahlstedt (1836-1917) Characeae.