• Mycomicrothelia wallrothii (Hepp) D.Hawksw.
Mycomicrothelia wallrothii
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(Map updated: 11 August 2009)

Similar to M. confusa and M. atlantica (both described elsewhere), M. wallrothii is an Arthopyrenia lookalike species differing in its brown-coloured spores. It can be told from its two near relatives by the virtual absence of a thallus, the conspicuous fringe of cells around the discs and different host tree (birch).

Key characteristics

  • Thallus inapparent, discs with a halo-like fringe of cells plainly visible
  • Spores brown in the ascus, but externally very like a species of Arthopyrenia or Leptorhaphis; on birch.

Original text submitted by

 Simms, M. J., (2016). Mycomicrothelia wallrothii (Hepp) D.Hawksw.. [In] LichenIreland. Accessed on 2019-01-21.