LichenIreland
  • Peterjamesia sorediata (Sparrius, P. James & M.A. Allen) D. Hawksw.

There are no records for this species at present.

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Only known in Ireland from south Kerry, this is a coastal crustose lichen of sheltered underhangs and recesses in cliffs. It resembles P. circumscripta (described elsewhere) but lacks discs. The thallus soon becomes thickly sorediate. Like P. circumscripta, it tests C negative. This separates it from all allied taxa which may occur as companion species, the majority of which are C+ red.

Key characteristics

  • Like P. circumscripta; never fertile, but is abundantly sorediate; in identical habitats
  • Tests C negative, Pd+ yellow.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Peterjamesia sorediata (Sparrius, P. James & M.A. Allen) D. Hawksw.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=500087 Accessed on 2017-12-18.