The collections of the Biological Museum in Oskarshamn comprise of botanical and zoological collections. Most important is their botanical collection, Oskarshamn Herbarium (OHN).

The number of specimens in the herbarium that can be found in BioAtlas now amount to 244 573 records. Most of these records, about 80%, are vascular plants from Sweden, mainly the Southern parts.
You can explore the records in the BioAtlas Collectory.