• Parmeliella parvula P.M.Jørg.
Parmeliella parvula
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This small, easily overlooked species (colonies only 2cm diam.) consisting of tiny bluish-grey to brown scales with indented edges growing on mossy, basic-barked trees, occurs chiefly in woodland areas with a long history of stability. The edges of the scales are covered in grey, sugar-like granules (isidia). In sheltered, moist woodlands. It is predominantly western in Ireland.

Key characteristics

  • It resembles Pannaria and Parmeliella species when poorly developed. The small size, blue-grey squamules with abundant granular isidia along the saw-toothed edge of the scales help to indicate this species
  • It is often among mosses at oceanic sites in the west.

Original text submitted by Simon Davey

 Simms, M. J., (2016). Parmeliella parvula P.M.Jørg.. [In] LichenIreland. Accessed on 2018-07-17.