Description: This is one our most distinctive lichens of damp siliceous rocks and stream edges. By its grey, warty, granular squamules (phyllocladia) it is instantly recognisable as a species of Stereocaulon but it is the erect stalks called pseudopodetia, each capped with a globe of soralia like a round-headed mapping pin, which makes it stand out from the crowd. Discs are rare. In Ireland, the species is scattered.

Key Identification Features:

• Grey, warty, granular squamules (phyllocladia)
• Discs are rare

Original text submitted by Vince J. Giavarini

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

iNaturalist: Stereocaulon pileatum at iNaturalist World Species Observations database.