Verrucaria viridula

Description

Variable. Large perithecia are half to fully immersed in +/- areolate pale brown thallus. Thallus can also be whitish, grey or green-grey, sometimes +/- immersed and appearing as brown flecks on substrate.

Identification difficulty
Habitat

Found in man-made and natural habitats on calcareous rocks, limestone, mudstone, mortar and bricks.

When to see it

All year round.

UK Status

Widespread and quite frequent in Britain.

VC55 Status

Fairly frequent in Leicestershire and Rutland.

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Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map