Parmotrema perlatum

    Description

    A relatively large and leafy lichen. It is pearly grey when dry, but greener when damp.

    Identification difficulty
    Habitat

    Usually on tree trunks but sometimes on rocks.

    When to see it

    All year round.

    UK Status

    Widespread, common in much of western and southern Britain; until recently largely absent from central and eastern England as a result of sulphur dioxide pollution, but now rapidly re colonising these areas as levels have dropped.

    VC55 Status

    Probably increasing in Leicestershire and Rutland.

    Leicestershire & Rutland Map

    UK Map