Fungi Outer Hebrides


Family: Rocellaceae

Opegrapha herbarum Mont.

Type: Crustose

A thin, grey to olive or brown thallus with lirellate apothecia up to 2mm in length. Part of a difficult genus commonly requiring microscopic examination of the spores for accurate identification. A widespread and common species across the UK, but first recorded in the Outer Hebrides in 2018. Prefers sheltered sites on smooth-barked hosts

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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