Graphidaceae Phaeographis inusta Growth type crustose Chemical reactions negative Occurs on deciduous trees (especially Hazel) in mature woodland. BLS conservation evaluation: Nationally Scarce, International Responsibility Pale grey to pale yellow-brown thallus, often with an olive-greenish tinge. Immersed, grey-black, +/- stellate apothecia without white thalline margins. Spores brown, 3-5 septate, 16-25 x 7-9 µm. Micro photograph below. Similar: Phaeographis dentritica and P. smithii are both K+, P+. Graphis scripta has slit-like discs in narrower lirellae.

Microscope photograph

Phaeographis inusta
Studland, Dorset. November 2014