• Merismatium discrepans (J.Lahm in Arnold) Triebel
Merismatium discrepans
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Species of Merismatium differ from Polyblastia only by their lichenicolous lifestyle. Known to grow on the thallus of Protoblastenia calva and P. rupestris on limestone rock the species is much under-recorded in Ireland. The submuriform spores (1315m long) lack a surrounding perispore and contain approximately three to four cells. Places such as the Burren contain the ideal habitats to enable you to get to know this species.

Key characteristics

  • Grows on the thallus of Protoblastenia calva and P. rupestris
  • Spores submuriform with approx. 34 cells, without a perispore.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Merismatium discrepans (J.Lahm in Arnold) Triebel. [In] LichenIreland. Accessed on 2018-08-20.