>120,000 items
WIS maintains a non-circulating Herbarium Library that is affiliated with the UWMadison campus library system. It is a specialized collection of taxonomic books, journals, and especially reprints, over 120,000 items in all. These are arranged by geography, plant family, and/or topic. Microfiche sets of important plant collections, significant archival material related to Wisconsin botany, and an eclectic collection of nearly 10,000 maps, atlases, gazetteers and related materials are also available to aid the taxonomic researcher.