The Murray State University Herbarium (code MUR), Murray, KY, was created through the efforts of Dr. Marian Fuller in the late 1960s. She combined a number of smaller plant collections that had accumulated over the years since the beginning of the university in 1922, in addition to adding many specimens of her own. Over 40,500 plant specimens are currently housed in the herbarium, which makes MUR the third largest collection in the Commonwealth of Kentucky. The H. Raymond Athey collection, the largest individual collection of almost 6,000 specimens, also is housed in the herbarium. The herbarium is the repository of the largest collection of the Jackson Purchase area (Mississippi Embayment) flora in the state. Approximately 56% of the specimen records have been cataloged electronically and are available on-line through this searchable database. This herbarium has been supported by many volunteers; the MSU College of Science, Engineering, and Technology; the Department of Biological sciences; the Watershed Studies Institute; and the Kentucky Academy of Science.