• Sarcogyne privigna (Ach.) A.Massal.
Sarcogyne privigna
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This species, which is relatively frequent in south-east Ireland, is a miniature version of S. clavus with discs to 1mm diam. On siliceous tomb-tops in damp churchyards it can grow to become a dominant feature. The greyish thallus supporting pale-red to brown discs with a black, compressed rim and multispored spore-sacs (asci) (seen in a microscope squash of the discs) are its main characteristics.

Key characteristics

  • Thallus inapparent or greyish, discs, pale red to brown with black angular rim (exciple)
  • Spores 3.55m long; on smooth, horizontal siliceous rock, for example, tombs, memorials.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Sarcogyne privigna (Ach.) A.Massal.. [In] LichenIreland. Accessed on 2018-07-20.