HOME | HERBARIUM | RESOURCES | LINKS | CONTACTS
DESCRIPTION | SEARCH DATABASE | IMAGES | GLOSSARY | COLLECTION TIPS

Explore the Lichen Database


Visitors to this site are able to explore the Lichen Database containing all the lichen herbarium data. The search component (query engine) has been designed to enable visitors with different levels of experience to easily formulate queries (requests for information). The information returned from each request can be viewed and printed within the browser or downloaded for personal use (e.g., further analysis using an electronic spreadsheet application).

Click here to begin exploring the database. The Lichen database schema is presented below for reference.


Lichen Database Schema

To improve the responsiveness of queries, the database was denormalized into a single table from which all information can be extracted. The single "GrandUnion" table is depicted below. All queries issued through the query engine are made against the"GrandUnion" table.





Last Updated November 2, 2004
For more information contact sselva@maine.edu
Copyright © 2002, 2003, 2004 The University of Maine at Fort Kent