• Chaenotheca furfuracea (L.) Tibell
Chaenotheca furfuracea
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(Map updated: 11 August 2009)

The thallus of this ‘pin-lichen’ is powdery leprose, and bright, sulphur-yellow at its best. In the sterile, non-fruiting state, it could be mistaken for Psilolechia lucida. The ‘pins’ are between 1.6 and 2.6mm tall. It is a species of humid, soily hollows below eroding banks where the thallus can quickly develop along the surface of exposed tree roots. In Ireland, the species appears most abundant in the north-east and south-west.

Key characteristics

  • Thallus yellowy-green, powdery; frequently without discs
  • On exposed, thread-like tree roots especially in eroded hollows.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Chaenotheca furfuracea (L.) Tibell. [In] LichenIreland. Accessed on 2020-07-06.