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About the Pacific Northwest Fungi Database


This database is intended primarily as a tool for researchers, teachers, and students interested in fungi occurring in the Pacific Northwest. The database originally was based on information compiled by Professor C. Gardner Shaw of the Department of Plant Pathology at Washington State University over many years and published in his Host Fungus Index for the Pacific Northwest (referred to as "the Index") in 1973. A continuing effort is under way to update, expand, and correct the information in the database, but users should be aware that the information presented is only a first step toward a complete catalog of the region's fungi. The database cannot be considered of sufficient completeness or accuracy to be used to identify edible or poisonous mushrooms, to determine distributions of plant pathogens, or for any other activity that requires complete, up-to-date, or absolutely accurate information. For information on how to use the database, click on the link "Using the Database".

The geographical region represented in the database is the same region reflected in the Index: Alaska, British Columbia, Idaho, Montana, Oregon, and Washington. Information on names of fungi (genus and species), host plants (genus and species), state or province from which a fungus was reported, and taxonomic authorities are taken directly from the Index. Shaw's practice of noting whether a record is based on a herbarium specimen or literature citation is followed in this database.

The information in the first version of the database (spring of 2004) reflects two additional features of the Index. Fungi on substrates other than plants and fungi occurring on grasses are not included. In addition, scientific names reflect the version of the International Code of Botanical Nomenclature in effect in 1973. Work is underway, and will be for many years, to expand the database to include information on non-plant-associated fungi (such as terricolous mushrooms, timber-decaying fungi, medically-significant fungi, etc) and fungi on grass hosts. The nomenclature of fungi in the database is being reviewed by authorities on the taxonomy of specific fungal groups. As such work is completed the names in the database will be brought into compliance with the current International Code of Botanical Nomenclature.

New features in Version 2 (posted online April 1, 2005) of the database include the capability to search by fungus order and family. The Dictionary of the Fungi (9th edition, 2001) published by CABI Publishing, is acknowledged as the source of information on names of families and orders. The database of names in the Dictionary of the Fungi can be searched at, We appreciate the assistance of Paul Kirk of CABI who kindly provided this information. Another new feature of Version 2 is the “Featured Fungus.” The Featured Fungus will be updated frequently to highlight new additions to the database. Photographs and information about past Featured Fungi will be archived in the gallery section. Version 2 also sees substantial improvements to database structure that will not be readily apparent to users but which will improve reliability and the capability for future upgrades.

A fact that will be readily apparent to mycologists is that the number of fungi (nearly 5,000 species) in the database is only a fraction of the species that probably occur in the region. This ecologically and geologically diverse region likely includes 15,000-20,000 species of fungi. The Pacific Northwest Fungi Project is a consortium of cooperating scientists throughout the region who are contributing information on the fungi of the region to this database. The ultimate goal of the Project is to develop a complete inventory of the region's fungi. Further information on how to participate in this work is available on the Project's website.

Please email any suggestions or corrections regarding information in the database to Dean Glawe at Washington State University (

Contact us: Dean Glawe 253-445-4650 | Accessibility | Copyright | Policies
Department of Plant Pathology, Washington State University, Puyallup, WA 98371-4998, USA