Description: This crustose lichen is easily separated from other Lecania species growing on calcareous rocks by the abundance of small nodules scattered across the surface of the areoles. It is often on horizontal man-made habitats such as old weathered driveways, paths, patios and tiles. These neglected habitats are rich in detail and only when one is bearing down on hands and knees glassing the surface of the substratum with a lens does such trodden stonework reveal its treasures. In Ireland, it is known from Counties Limerick, Dublin and Down.

Key Identification Features:

• Thallus broken into contorted islands with nodules scattered across the surface made more obvious when wet
• Discs orange to dark brown; horizontal limestone slabs weathered and lichen encrusted.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Lecania inundata at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Lecania inundata at iNaturalist World Species Observations database.