• Biatora epixanthoides (Nyl.) Diederich
Biatora epixanthoides
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(Map updated: 11 August 2009)

The mossy trunks of broadleaved trees in old sheltered woodlands situated in the valleys of the north and west are the best places to search for this species. The grey-green, granular thallus covered with a patchy coating of pale-brown soralia can form thick crusts over mossy tree boles like apple-green emulsion paint. As discs are rare the certain identification of this lichen may depend on spot testing. All reactions are negative. Northern and western Ireland, rare.

Key characteristics

  • Grey-green granular thallus forming thick continuous crusts (often to 20 or more centimeters)
  • Discs usually absent; negative spot tests.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Biatora epixanthoides (Nyl.) Diederich. [In] LichenIreland. Accessed on 2019-01-20.