The use of databases in herbarium management has become a vital tool in the organization and analysis of large collections. With a well thought-out structure, a database can yield a wealth of uses, ranging from basic management tasks, e.g., generating specimen labels, maintaining an annotation history, the management of specimen loans and exchanges, to a more advanced analysis of label data, e.g., creating distribution maps or analyzing community relationships. The Microsoft Access 2000 lichen herbarium database, developed at the Arizona State University Lichen Herbarium uses state-of-the-art programming options to facilitate uniformity in data entry, reduction of spelling errors and data updates according to taxonomic name changes. A barcode system for herbarium specimens is used as a relatively inexpensive method of accurately retrieving digital label data. Likewise, the World Wide Web holds vast possibilities for querying herbarium collections databases. Researchers around the world can quickly and accurately view herbarium holdings to select specimens for future loans or retrieve a list of the species collected in a region. A web-searchable interface, created in collaboration with the Center for Environmental Studies at Arizona State University, uses JSP, JavaScript, and Java Beans technologies to conduct queries on the ASU lichen herbarium database as well as other ASU collections databases available over the Internet.

Key words: database, herbarium, internet