LichenIreland
  • Arthonia epiphyscia Nyl.
Arthonia epiphyscia
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(Map updated: 11 August 2009)

This species has discs (0.10.35mm diam.) that grow directly on the thallus of Physcia species, in particular P. adscendens and P. dubia. They occur in groups, black and rounded with one-septate spores and red-brown internal pigments which turn K+ olive. Spot test reactions are negative. In Ireland, the species has been recorded in Counties Galway and Fermanagh

Key characteristics

  • Discs in groups, black, convex; spores one-septate, hypothecium red-brown
  • On Physcia adscendens or P. dubia.

Original text submitted by

 
 Simms, M. J., (2016). Arthonia epiphyscia Nyl.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=15497 Accessed on 2018-10-20.