• Usnea flammea Stirt.
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Usnea flammea
© Mike Simms
Usnea flammea
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(Map updated: 11 August 2009)

Typically, this beard lichen can grow to a length of eight centimetres. It is a wonderful sight when seen growing on rocks and boulders at exposed sites near the sea. It is short stalked with the main stems worm-like. Frequent annulations occur all along the stems like cylindrical beads threaded together to form a necklace. The base of the stem is not blackened. It also grows widely as an epiphyte. The distribution of this species is predominantly western in Ireland.

Key characteristics

  • The pale annular rings, absence of a black base and a generally pollarded appearance serves to indicate this species
  • The bases of the main stems are often smooth with few papillae (pimpled swellings) or isidia showing.

Original text submitted by Simon Davey

 Simms, M. J., (2016). Usnea flammea Stirt.. [In] LichenIreland. Accessed on 2019-01-16.