A little-known taxon from the genus Bacidia sensu lato, with darkly pigmented fruiting bodies, relatively wide ascospores with a few septa and abundant pycnidia, which may contain two types of conidia (Ekman 2014). Toniniopsis coprodes grows in shady places such as crevices and limestone (and other calcareous) overhangs in mountains. The lichen is mainly known from northern Europe and the Alpine region of central Europe.
This species used to be incorrectly associated with Bacidia trachona (an unrelated species from the family Pilocarpaceae, now placed in the genus Aquacidia; see this species) by many early authors (Llop & Ekman 2007). Older records of B. trachona from the calcareous rocks of the Krkonoše Mountains are likely to refer to B. coprodes instead, as evidenced by a recent unpublished record from the Obří důl valley.
Literature: Llop E. & Ekman S. (2007): Bacidia coprodes – resurrecting a misinterpreted species. – Lichenologist 39: 251–257. Ekman S. (2014): The Bacidia coprodes group (Ramalinaceae, Lecanoromycetes, Ascomycota), with special reference to the species in Europe and North America. – Phytotaxa 191: 66–80.taxonomic classification: most frequented synonyms:Bacidia coprodes
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