Irish lichens
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Order: Ostropales Family: Graphidaceae
Species: Phaeographis inusta Photos: On Salix. Glengarriff woods, Co. Cork, SW Ireland 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, base of exciple closed. Spores 3-5 septate, 16-25 × 7-9 µm. Chemistry negative Found on deciduous trees, especially Hazel, in mature woodland. Similar: Phaeographis lyellii K-, spores (3-)4-5(-7) septate but lirellae have white powdery margins. P. dentritica and P. smithii are K+, P+. Graphis scripta has slit-like discs in narrower lirellae. |
Phaeographis inusta November 2010