LichenIreland
  • Pertusaria coronata (Ach.) Th. Fr. 

There are no records for this species at present.

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This attractive species is similar to P. coccodes (described elsewhere), but differs markedly in the longer, more cylindrical, isidia and greenish or yellowish grey thallus, never brown-pink. This species tests K+ yellow-orange, whereas in P. coccodes, it is K+ yellow to red. Usually woodland edge trees rather than dusty waysides. In Ireland, this species is known only from County Antrim.

Key characteristics

  • Like P. coccodes but with longer, cylindrical isidia; thallus without brown tones
  • Tests K+ yellow to red.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Pertusaria coronata (Ach.) Th. Fr. . [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=500086 Accessed on 2017-11-21.