Fungi Outer Hebrides


Family: Hymeneliaceae

Tremolecia atrata (Ach.) Hertel

Type: Crustose

Rust-coloured, areolate, crustose thallus with black prothallus. Numerous immersed apothecia, concave, with raised margins. On exposed, hard, siliceous rocks, mainly in upland areas

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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