• Dermatocarpon intestiniforme (Körber) Hasse
Dermatocarpon intestiniforme
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(Map updated: 11 August 2009)

This foliose, grey to brown, ‘potato-peel lichen’ of flushed siliceous, slightly calcareous rocks, streams and lough margins is easily recognised by its repeatedly lobed thallus so it resembles the stub of a conical sheaf of paper. It attaches to the substratum via numerous holdfasts. A coating of pruina is nearly always visible on the lobes. Western Ireland.

Key characteristics

  • Grows into a conical construct containing sheaves of lobes; attached by several holdfasts: upland loughs, seepages and streams
  • D. miniatum has a less divided thallus and a single holdfast, D. luridum lacks pruina on the lobes and has a Melzers reagent + red medulla.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Dermatocarpon intestiniforme (Körber) Hasse. [In] LichenIreland. Accessed on 2019-07-17.