Fungi Outer Hebrides


Family: Verrucariaceae

Verrucaria muralis Ach.

Type: Crustose

Thin, pale, often greenish thallus with black perithecia. More frequent on base-rich substrate but occasionally found on siliceous rock where the thallus is generally thinner

Determiner: 
Chris Johnson

References: 
Smith et al. editors (2009) The Lichens of Great Britain and Ireland
Dobson (2018) Lichens: an Illustrated Guide to the British and Irish Species

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