LichenIreland
  • Parmotrema crinitum (Ach.) M.Choisy
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Parmotrema crinitum
© Robert Thompson
Parmotrema crinitum
© Robert Thompson
Parmotrema crinitum
© Robert Thompson
Parmotrema crinitum
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(Map updated: 11 August 2009)
Parmotrema crinitum
© Robert Thompson
 

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This attractive grey species is at its best in western Ireland where it is not uncommon on mossy tree boles and rocks. It could easily be overlooked for P. perlata, but is a more loosely attached plant lacking the dusty sorediate lobes of that species and is spiked with scores of small black cilia (hairs) and rod-like warts (isidia) creating a likeness to chin stubble. Once seen, never forgotten. The underside with its black centre and simple rhizines (hair-like roots) and contrasting bald margins should serve to confirm its identity.

Key characteristics

  • Loosely attached to mosses and other lichens; base of trees mainly
  • Leafy grey lobes shot through with small black hairs (cilia) and rod-like isidia.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Parmotrema crinitum (Ach.) M.Choisy. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18871 Accessed on 2017-11-21.