• Trapeliopsis gelatinosa (Flörke) Coppins & P.James
Trapeliopsis gelatinosa
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(Map updated: 11 August 2009)

This is a lichen of soily banks or cuttings shaded by overhanging trees. In Ireland, it is rather rare. The thin grey to green-brown grainy thallus lays over the surface of the soil like a moist film (in dry weather like shrivelled clear-film plastic) scattered with bright, pale green soralia which catch the eye. The grey-black discs grow to 1.6mm diam. and are rarely prominent; the spores are simple. It is a lichen to search for after rain.

Key characteristics

  • Thallus grey or grey-green, a membrane or near transparent film on clay-like soils of slopes and embankments; soralia frequent, scattered, pale green
  • Discs grey-black containing simple spores; spot tests negative.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Trapeliopsis gelatinosa (Flörke) Coppins & P.James. [In] LichenIreland. Accessed on 2019-05-21.