Lichens : Eremithallales : MelaspileaceaeLichens

Melaspilea amota Nyl.

Description: A number of the Melaspilea species are outside the normal scope of beginners. M. amota is no exception. It is rarely recorded on the smooth bark of oak or lime. The greyish thallus produces small brown, rounded or angular, flat-topped discs with a thin rim that burst through the surface of the bark. Ascus (spore sac) tip is K/I+ blue (test by viewing under a microscope). Discs flatter than in M. ochrothalamia (described elsewhere). In Ireland, the species is known from Counties Kerry and Wicklow.

Key Identification Features:

  • Thallus vague grey to cream; discs flat, brown bursting through the bark with a thin rim (exciple); discs <1.5mm diam.
  • On neutral bark of oak or lime.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Melaspilea amota at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Melaspilea amota at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Melaspilea amota. Nyl.. [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=18800. Accessed on 2026-11-12.