Lichenomphalia umbellifera a basidiolichen and agaric species. It has a symbiotic relationship with an alga the green thallus of which can be seen.

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Keywords: agaric, basidiolichen, basidiomycota, common, fungus, gwynedd, lichenized, lichenomphalia, mushroom, north, omphalina, peat, rotted, toadstool, umbellifera, wales, widespread, wood