• Arthonia punctella Nyl.
Arthonia punctella
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Known from Counties Cork and Carlow this lichenicolous species has black, rounded, convex discs and should be searched for on the thallus of Diplotomma alboatrum. The one-septate spores range from colourless when young to brown and warted when fully developed.

Key characteristics

  • Lichenicolous on the thallus of Diplotomma alboatrum
  • Discs black, convex with spores brown and warted with age.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Arthonia punctella Nyl.. [In] LichenIreland. Accessed on 2018-07-22.