LichenIreland
  • Melanelia exasperatula (Nyl.) Essl.
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Melanelia exasperatula
© Mike Simms
Melanelia exasperatula
© Mike Simms
Melanelia exasperatula
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This shiny brown, foliose epiphyte with inflated, ‘brown paper bag’ or peg-like isidia is occasional on enriched twigs and branches. It appears to be frequent in the northern half of Ireland but there are, as yet, few records from the south.

Key characteristics

  • It can be distinguished chemically from the common Melanelia fuliginosa ssp. glabratula by the C- reaction
  • The rounded isidia, that are hollow distinguish it from Melanelia elegantula, a rarer species that has peg-like isidia that are frequently branched.

Original text submitted by Simon Davey

 Simms, M. J., (2016). Melanelia exasperatula (Nyl.) Essl.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18878 Accessed on 2017-10-19.