• Rimularia furvella (Nyl. ex Mudd) Hertel & Rambold
Rimularia furvella
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The thallus of this crustose species has a C+ pink, scurfy brown-black cortex giving it an almost leprose feel, rather like a fluffier, but more coherent version of Placynthiella icmalea which is also C+ red. It frequently grows over or among other lichens on sunny, exposed schistose or weakly siliceous rocks. Currently known from western Ireland, but is likely to be more widespread.

Key characteristics

  • Thallus like a scurfy black-brown stain; lichenicolous, C+ pink (sometimes also K+ yellow to red and Pd+ yellow)
  • Exposed, weakly acid rocks; upland.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Rimularia furvella (Nyl. ex Mudd) Hertel & Rambold. [In] LichenIreland. Accessed on 2018-08-18.