Irish lichens

Phaeographis inusta

Order: Ostropales       Family: Graphidaceae

Species: Phaeographis inusta

Growth type crustose.
Photos: On Salix. Glengarriff woods, Co. Cork, SW Ireland.
Identified by John Douglass

Small, thin, matt or glossy thallus, pale grey to pale yellow-brown, often with olive-greenish tinge. Immersed, grey-black, +/- stellate apothecia lacking white thalline margins. Spores 3-5 septate. Chemical reactions negative.

Found on deciduous trees, especially Hazel, in mature woodland.

Similar: Phaeographis dentritica and P. smithii (both K+, P+). Graphis scripta, slit-like discs in narrower lirellae.

Phaeographis inusta
Phaeographis inusta November 2010

All images used are copyright. Please contact me if you find errors.