LichenIreland
  • Aspicilia epiglypta (Norrl. ex Nyl.) Hue
Aspicilia epiglypta
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This rare crustose species forms shiny, angular areoles (bits of thallus separated by cracks), rounded or sometimes warted; it is pale grey with a yellowy cast and is limited by a zoned margin. When fertile, the disc margin is shaped like an angular egg-timer giving the black disc a rather jagged and constricted appearance. The K+ red, Pd+ yellow-orange thallus is restricted to granitic rocks and schists (in Britain it has colonised a toppled Stonehenge sarson). In Ireland, it has been collected from Counties Antrim and Kerry. Last record was 1994.

Key characteristics

  • Crustose lichen of granitic rock with rounded, angular areoles, grey with a yellowy sheen, limited by a conspicuous margin
  • Discs black, rather jagged-edged; material without discs will turn red with K and yellow-orange with Pd.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Aspicilia epiglypta (Norrl. ex Nyl.) Hue. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18188 Accessed on 2017-11-19.