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Relicina subabstrusa is known from a few scattered records in the Neotropics. This
species lacks any propagules and has a black lower surface and coronate apothecia.
This paper extends the known distributional range of R. subabstrusa in Argentina and
maps its geographic distribution in the Neotropics. Notes on similar taxa and an updated
key for the identification of the Neotropical species of the genus are provided.