Porpidia tuberculosa

    Description

    A crust forming lichen with a thin, continuous or cracked-areolate, white to pale blue-grey thallus, rarely tinged orange.

    Identification difficulty
    Habitat

    Common on exposed siliceous rocks, pebbles, walls and memorials, rare on worked timber.

    When to see it

    All year round.

    UK Status

    Widespread and common in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland.

    Leicestershire & Rutland Map

    UK Map