Key
James P. Bennett and Clifford M. Wetmore
Species Count: 184
Acarosporaceae
Arthoniaceae
Caliciaceae
Candelariaceae
Catillariaceae
Chrysotrichaceae
Cladoniaceae
Coccocarpiaceae
Collemataceae
Coniocybaceae
Fuscideaceae
Graphidaceae
Gyalectaceae
Helotiales_family_incertae_sedis
Hymeneliaceae
Lecanoraceae
Lecideaceae
Lichenoconiaceae
Lichinaceae
Megasporaceae
Mycocaliciaceae
Mycoporaceae
Ochrolechiaceae
Opegraphaceae
Parmeliaceae
Peltigeraceae
Peltulaceae
Pertusariaceae
Phlyctidaceae
Physciaceae
Placynthiaceae
Porinaceae
Porpidiaceae
Psoraceae
Pyrenulaceae
Ramalinaceae
Sarrameanaceae
Stereocaulaceae
Teloschistaceae
Verrucariaceae