LichenIreland
  • Catillaria atomarioides (Müll.Arg.) H.Kilias
Catillaria atomarioides
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Among the smallest of all the Irish lichens, C. atamarioides is a miniaturised version of C. chalybeia var. chalybeia. Because of its size, it can occur widely on all manner of siliceous rock fragments, especially along the edges of moors and heaths as well as slate and brick. It can be distinguished by the tiny black discs (0.1-0.2mm diam.) and colourless hypothecium. In Ireland, the species is thinly scattered.

Key characteristics

  • Like scaled-down C. chalybeia var. chalybeia, but with smaller discs and colourless hypothecium
  • On stones of acid rock, shingle, slate, etc.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Catillaria atomarioides (Müll.Arg.) H.Kilias. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18308 Accessed on 2017-12-13.