• Bacidia absistens (Nyl.) Arnold
Bacidia absistens
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This acid bark lichen of deciduous trees is scarce in Ireland. It resembles the common epiphyte B. laurocerasi (described elsewhere) but is characterised by its slightly smaller discs and purple-violet, K+ green epithecium (top layer of the disc). It is found chiefly in old woodlands. Absent from southern Ireland.

Key characteristics

  • Like B. laurocerasi but with smaller discs and purple-violet epithecium (grey to brownish with only a purplish hint in B. laurocerasi)
  • Epithecium K+ green; acid-barked trees in long-established woodlands.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Bacidia absistens (Nyl.) Arnold. [In] LichenIreland. Accessed on 2019-01-20.