LichenIreland
  • Verrucaria funckii (Spreng.) Zahlbr.
Verrucaria funckii
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Fast-flowing rivers on unpolluted stretches of siliceous bedrock may have this species. The smooth, thick, mostly unbroken, well-developed dark grey-green subgelatinous thallus revealing just the black tips of the discs (perithecia) separates it from its lookalikes in the submerged zone habitat. The narrowly ellipsoid, medium sized (c. 2226m long), spores will help you clinch its positive identification. It is scattered in Ireland, but likely under-recorded.

Key characteristics

  • Thallus subgelatinous, dark grey-green, quite thick in places, unbroken but for an occasional crack
  • Perithecia mostly squat and sunken, their black tips only visible; a submerged lichen usually seen during very low water or drought.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Verrucaria funckii (Spreng.) Zahlbr.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=20681 Accessed on 2017-10-17.