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Yellow lichen on limestone

Observed: 4th October 2012 By: pf339
S159 Neighbourhood Nature - course complete
pf339’s reputation in Fungi and Lichenspf339’s reputation in Fungi and Lichenspf339’s reputation in Fungi and Lichenspf339’s reputation in Fungi and Lichens
Yellow lichen on limestone i
Yellow lichen on limestone ii
Description:

Yellow, placodioid lichen with some pruina on lobes growing on oolitic limestone church window sill. Darker areolate thallus in middle. For colour comparison, picture (ii) shows the lichen on left next to (what I think are) Caloplaca flavescens lichens on right. Possibly Candelariella medians

Identifications

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Some fungi are very poisonous so a mistaken ID could have serious consequences.

Species interactions

No interactions present.