Verrucaria muralis

Description

White to greenish-white thallus, immersed, smooth or cracked. Black perithecia are immersed or prominent, leaving shallow pits in substrate.

Identification difficulty
Recording advice

Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.

Habitat

Found on bricks, mortar, soft limestone rocks and pebbles and on shells.

When to see it

All year round.

UK Status

Widespread and common in Britain.

VC55 Status

Status in Leicestershire and Rutland not known.

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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