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Genus Lecanora
- type genus of Lecanoraceae; crustaceous lichens
Genus Roccella
- chiefly fruticose maritime rock-inhabiting lichens
Genus Pertusaria
- crustose lichens that are a source of the dye archil and of litmus
Genus Usnea
- widely distributed lichens usually having a greyish or yellow pendulous freely branched thallus
Genus Evernia
- lichens of the family Usneaceae having a pendulous or shrubby thallus
Genus Ramalina
- shrubby lichens of the family Usneaceae having a flattened thallus
Genus Alectoria
- lichens having dark brown erect or pendulous much-branched cylindrical thallus
Genus Cladonia
- type genus of Cladoniaceae; lichens characterized by a crustose thallus and capitate fruiting bodies borne on simple or branched podetia
Genus Parmelia
- type genus of the Parmeliaceae; a large genus of chiefly alpine foliaceous lichens
Genus Cetraria
- foliose lichens chiefly of northern latitudes