Keys and Checklist to the Northamerican Species of the genus Amanita by C. Bas:

http://pluto.njcc.com/~ret/amanita/keylist.html

Bestimmungsschlüssel für Röhrlinge (für Anfänger):

http://www.vapko.ch/de/questions/VAPKOBestimmungsschlusselfurRohrlinge.php

The Northamerican hypogeical gasteromycetes (Basidiomycetes):

http://www.natruffling.org/basidkey.htm

The Northamerican hypogeical ascomycetes:

http://www.natruffling.org/ascokey.htm

The Genus Daldinia:

http://www.wsu.edu:8080/%7Erogers/daldinia.html_

The Genus Armillaria in North America (syn.=Armillariella):

http://botit.botany.wisc.edu/toms_fungi/armkey.html

Key to species of Botryobasidium, Hyphodontia, Hyphodontiella, Schizopora, Echinoporia:

http://www.uni-tuebingen.de/uni/bbm/mycology/genera.htm

Pezweb: The Pezizales of North-America:

http://mgd.nacse.org/cgi-bin/hyperSQL_gateway/?/hyperSQL/pezweb/hsql/genusfinder.hsql

The Northamerican Species of the Genus Agaricus:

http://www.mushroomexpert.com/agaricus.html

The Fungi of Saskatchewan (Canada):

Key to the Species:

http://www.usask.ca/biology/fungi/key_home_page.shtml

The Genus Lepista:

http://www.mycokey.com/AU/MycologyStaff/MC/genusLepista.htm_

Key tho the genera of the operculate cup-fungi (Pezizales) in The Northeastern Pacific and the Rocky Mountains:

http://www.svims.ca/council/Peziza.htm

Ed's E-Key:

http://members.tripod.com/edsekey/key_1.