• Byssoloma subdiscordans (Nyl.) P.James
Byssoloma subdiscordans
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This tiny, patch-forming rarity is similar to B. leucoblepharum (described elsewhere) in habitat and woolly margin to the discs (exciple), but differs markedly in the black or blue-black discs with a white exciple. In Ireland, material has been confirmed from Counties Kerry and Limerick. It grows on heather stems and damp fence posts. At Castlefreake in County Cork, it grows locally on damp, shaded pebbles and rock fragments.

Key characteristics

  • Forms small patches on bark and rock
  • Discs black, exciple white, woolly.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Byssoloma subdiscordans (Nyl.) P.James. [In] LichenIreland. Accessed on 2018-07-17.