A sorediate lichen, closely related to A. antricola, from which it differs in the formation of distinctly yellow-green soredia and less abundant and smaller pycnidia. Both species often grow together, contain identical chemical substances (the thallus is UV+ orange), have similar distribution and ecological requirements. Aquacidia viridifarinosa is potentially confusable with the usually sterile Bilimbia fuscoviridis, which nevertheless prefers basic rock and contains no lichen secondary metabolites.
Literature: Aptroot A., Sparrius L.B. & Alvarado P. (2018): Aquacidia, a new genus to accommodate a group of skiophilous temperate Bacidia species that belong in the Pilocarpaceae (lichenized ascomycetes). – Gorteria 40: 11–14.
taxonomic classification:Ascomycota → Lecanoromycetes → Lecanorales → Pilocarpaceae → Aquacidia
most frequented synonyms:Bacidia viridifarinosaRed List (Liška & Palice 2010):VU – vulnerable
Red List (Malíček 2023):C3 – endangered
Occurrence in the Czech Republic
All records: 24, confirmed 14. One click on a selected square displays particular record(s), including their source(s).