Fungi Outer Hebrides


Family: Mycoblastaceae

Tephromela atra (Huds.) Hafellner

Black Shields

Type: Crustose

Widespread on exposed rocks, especially coastal. The thallus is light grey, crazed-areolate, with abundant black apothecia. Easily confused with Lecanora gangaleoides

Determiner: 
Christine 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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