LichenIreland
  • Arthopyrenia nitescens (Salwey) Mudd
Arthopyrenia nitescens
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This ‘bark pimple’ species with a whitish-beige thallus, suffused pink when fresh, is mostly confined to hazel with a species-rich cover of lichens growing in old woodland or by streams. Like A. punctiformis (described elsewhere) the discs (perithecia) may be concentrated into tight patches but the one-septate spores lack the distinctive perispore typical of that species. North and west Ireland.

Key characteristics

  • One-septate spores (19-26ųm long), slightly longer than A. punctiformis which also has a conspicuous halo around the spore (perispore)
  • Strongly associated with hazel stands in species-rich woodlands and river valleys.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Arthopyrenia nitescens (Salwey) Mudd. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=39567 Accessed on 2017-11-18.