• Trapelia corticola Coppins & P.James
Trapelia corticola
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This crustose epiphyte with a green-brown thallus of dispersed granules is only conspicuous on account of the dot-like speckles of buff-coloured, floury soredia which are produced across the surface of the tiny thallus. It is characteristic of oak and alder bark in high-level woodlands and of trees growing along upland river corridors where rainfall is above the average. The soralia are C (fresh bleach) + red. Northern and western Ireland.

Key characteristics

  • Thallus green-brown, generally inconspicuous; acid bark in upland areas
  • Numerous small, dot-like speckles (soralia), tiny, neat and buff-coloured; C + red.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Trapelia corticola Coppins & P.James. [In] LichenIreland. Accessed on 2018-07-16.