Incertae sedis Lecania inundata Growth type crustose Chemical results negative. Identification needs confirming Possibly often over-looked on limestone, ragstone and calcareous rocks. Thick areolate thallus is whitish to grey-brown or greenish, covered with conspicuous scattered nodules. Apothecia orange-brown to blackish, often clustered in small groups, margin +/- swollen. Spores 1-septate, 12-18 × 5.5-6(-7.5) µm. Microscope photograph below. Similar: Lecania erysibe, thinner thallus, narrower spores

Microscope photograph

Lecania inundata
Hamworthy, Dorset. January 2014