LichenIreland
  • Protopannaria pezizoides (Weber) P.M.Jørg. & S.Ekman
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Protopannaria pezizoides
© Mike Simms
Protopannaria pezizoides
© Mike Simms
Protopannaria pezizoides
© Mike Simms
Protopannaria pezizoides
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(Map updated: 11 August 2009)
Protopannaria pezizoides
© Mike Simms
 

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This very attractive, scaly-crustose lichen forms neat patches approximately 3-6cm across on damp mossy or soily rocks and trees and among the plants of sheltered drystone walls. When dry the blue-grey thallus is seen to be composed of very small, flattened, overlapping scales that are granular rather than lobed. The bright, orangey-brown discs (c. 2mm diam.) are common and abundantly produced, each with a granular-scalloped edge. P. pezizoides is also a feature of shallow stream gorges and boulder tops within waterfall splash zones: easily a lichen to fall in love with. North and west Ireland.

Key characteristics

  • Blue-grey thallus of overlapping, granular scales capped with a profusion of bright orange-brown discs with notched edges. Psoroma hypnorum is similar but is always bright green when wet
  • On soil, rocks, trees and among mosses: moist, long-undisturbed sites, chiefly.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Protopannaria pezizoides (Weber) P.M.Jørg. & S.Ekman. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18861 Accessed on 2017-10-22.