Arthonia varians

    Description

    Arthonia varians is a parasitic lichen of Lecanora rupicola taking over and blackening the apothecia of that species and retarding their development. 

    Identification difficulty
    Habitat

    Where its host Lecanora rupicola is present.

    When to see it

    All year round.

    UK Status

    Widespread and evidently common where the host occurs, but evidently under-recorded.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    Leicestershire & Rutland Map

    UK Map