• Halecania spodomela (Nyl.) M.Mayrhofer
Halecania spodomela
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The thallus of H. spodomela consists of a scurfy-granular mixture of algal and jelly-like cyanobacterial cells giving the whole a dirty-black appearance. Discs (0.3-0.6mm diam.) are dark brown to black with a grey rim (exciple) speckled with a blackish deposit. The disc epithecium is a dull olive green. Its habitat is base-enriched siliceous rock, especially granite, near the coast. In Ireland, it has been recorded from Counties Galway and Kerry.

Key characteristics

  • Black scurfy thallus with black discs and green epithecium
  • Slightly base-enriched granitic rocks; near the sea.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Halecania spodomela (Nyl.) M.Mayrhofer. [In] LichenIreland. Accessed on 2018-07-20.