The University of Maine herbarium consists of mycology, lichen, algae, and plant collections. The Richard Homola Mycological collection at the University of Maine dates from the 1850’s and consists of approximately 10,000 fungal specimens, excluding lichens. The early collections from 1850s through early 1950s focused largely on plant pathogens, particularly rusts, from North America. The focus of the macrofungi collection is specimens of Basidiomycota from Maine. Some specimens date from the 1850s, but the bulk of the macrofungi (8000 specimens) was collected by Dr. Richard Homola from 1960’s to 1999 in Maine and North America. Dr. Homola also took excellent 35mm photographic slides and scanning electron micrographs of his specimens; the vast majority of which are vouchered in the Homola collection.