Thyrea (lichen)
Introduction '''''Thyrea''''' is a genus of lichen-forming fungi in the family Lichinaceae. It contains four species that have been accepted by Species Fungorum. The genus was circumscribed by Italian lichenologist Abramo Bartolommeo Massalongo in 1856, with ''Thyrea plectospora'' assigned as the type species.
Species * ''Thyrea confusa'' * ''Thyrea girardii'' * ''Thyrea plectopsora'' * ''Thyrea porphyrella''  – South America
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