--------------------^--------------- Stictaceae | Peltigeraceae | | | Hydrothyria +--+----------+ Peccania Phloeopeccania Pannariaceae | | | | | Leptodendriscum and | | | Leptogidium | Synalissa +----------+ | Heppiaceae Thyrea | | Polychidium | | | | | Leptogium Paulia | | | | | | | | Collema +---+-+------+ | | Pyrenopsidaceae Thermutis Physma (_Gloeocapsa_) (_Scytonema_) (_Nostoc_) LECIDEALES LECANORALES POLARILOCULARES -----------^------------- Usneae | Stereocaulon Eucetraria Ramalina | | | Ochropheae Cocciferae | | | | | | | | +--------+--+ | | Evernia Teloschistes Physcia | | | | | sect. Sphaero- | | Cetraria Parmelia Xanthoria Anaptychia phoropsis | | (Platysma) physodes | | | | | | | | | Gyrophoraceae | Cladonia Pilophoron | Parme- | | Physcia | | | | | liaceae | | | | | +---+----+ | +----+ | | +-------+ Baeomyces Heterodea Physcidia {Euplacodium Rinodina | | +---------+ { | | {Sect. Psora Gonophillus {Lecanora sect. { | {Callopisma| { | | { Squamaria {Placodium | | {Sect. Eulecidea Sect. Biatora { | { | {Blastenia | | | { Lecanora Colourless Brown | | | spores spores | | | +------+---------+ | | Sect. Biatora Sect. Biatora | | | | +----------------+--------+---------+--------------------+ Lecidea