• Cladonia glauca Flörke
Cladonia glauca
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(Map updated: 11 August 2009)

A species of old rotting tree stumps and shallow peat. It is easily missed on account of the lack of discs. The sturdy, blue-grey stalks (podetia) can grow to 5cm dividing into two or three branches from a thick, scaly base tapering upwards towards a powdery point. Close examination of the stalk with a hand lens (x 10) should reveal a longitudinal furrow like a healed scar down the side. All spot test reactions are negative. Northern and central Ireland.

Key characteristics

  • Discs rare. Podetia blue-grey, bent, scaly below, sorediate above with a barely visible longitudinal scar
  • On rotting stumps and peat.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Cladonia glauca Flörke. [In] LichenIreland. Accessed on 2019-01-21.