• Leptogium juressianum Tav.
Leptogium juressianum
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The thallus of this rarity has been compared to L. lichenoides and L. gelatinosum. However, this distinctive species is blue-grey with rounded lobes. The matt upper surface carries a fine furry tomentum. Clusters of granular or lobe-like isidia are present. Usually it forms cushions on thick mossy mats of Isothecium myosuroides in humid, sheltered habitats often on the leaning trunks of oak and birch: County Kerry and west County Cork.

Key characteristics

  • Thallus blue-grey, lobes rounded with granular or sub-lobate isidia, densely furry in places
  • Cushion-forming on Isothecium myosuroides on oak and birch; south-west Ireland.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Leptogium juressianum Tav.. [In] LichenIreland. Accessed on 2018-07-22.