• Usnea ceratina Ach.
Usnea ceratina
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(Map updated: 11 August 2009)

This is a gritty-textured trailing species which hangs like streamers of old bootlaces from old established trees. The core of each branch has a pinkish tinge with the medulla testing K-, Pd-, and C+ yellow-orange. The hanging portion of the thallus is spotted with coarse white swellings which burst to release granular soralia. In Ireland, the species is thinly distributed.

Key characteristics

  • Pendulous, coarse to the touch; branches with a pale pink centre and C+ yellow-orange reaction
  • Soralia granular giving the cortex a roughened appearance.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Usnea ceratina Ach.. [In] LichenIreland. Accessed on 2019-10-14.