• Stereocaulon pileatum Ach.
Stereocaulon pileatum
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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 characteristics

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

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Stereocaulon pileatum Ach.. [In] LichenIreland. Accessed on 2018-08-17.