Key
James P. Bennett and Clifford M. Wetmore
Species Count: 245
Arthoniaceae
Arthoniales_family_incertae_sedis
Caliciaceae
Candelariaceae
Chrysotrichaceae
Cladoniaceae
Collemataceae
Coniocybaceae
Gomphillaceae
Graphidaceae
Hygrophoraceae
Icmadophilaceae
Lecanoraceae
Lecideaceae
Lopadiaceae
Massalongiaceae
Microcaliciaceae
Mycocaliciaceae
Ochrolechiaceae
Opegraphaceae
Ophioparmaceae
Pannariaceae
Parmeliaceae
Peltigeraceae
Pertusariaceae
Physciaceae
Pilocarpaceae
Porinaceae
Pycnoraceae
Pyrenulaceae
Ramalinaceae
Rhizocarpaceae
Roccellaceae
Scoliciosporaceae
Sphaerophoraceae
Stereocaulaceae
Teloschistaceae
Tephromelataceae
Trapeliaceae
Umbilicariaceae
Verrucariaceae
Xylographaceae