Key
James P. Bennett and Clifford M. Wetmore
Species Count: 68
Acarosporaceae
Arthoniaceae
Caliciaceae
Candelariaceae
Cladoniaceae
Graphidaceae
Lecanoraceae
Monoblastiaceae
Parmeliaceae
Peltigeraceae
Physciaceae
Pilocarpaceae
Scoliciosporaceae
Stereocaulaceae
Teloschistaceae
Thelocarpaceae
Trapeliaceae
Verrucariaceae