Key
James P. Bennett and Clifford M. Wetmore
Species Count: 184
Acarosporaceae
Baeomycetaceae
Caliciaceae
Candelariaceae
Cladoniaceae
Collemataceae
Coniocybaceae
Cystocoleaceae
Graphidaceae
Koerberiaceae
Lecanoraceae
Lecideaceae
Leprocaulaceae
Lichinaceae
Massalongiaceae
Megasporaceae
Ochrolechiaceae
Ophioparmaceae
Pannariaceae
Parmeliaceae
Peltigeraceae
Physciaceae
Placynthiaceae
Psoraceae
Ramalinaceae
Rhizocarpaceae
Sphaerophoraceae
Stereocaulaceae
Teloschistaceae
Trapeliaceae
Umbilicariaceae
Verrucariaceae