Lichens : Peltigerales : CollemataceaeLichens

Leptogium coralloideum (Meyen & Flot.) Vain. 

Description: Known only from north Kerry, this rare species should be searched for among the mosses occupying the foot of willow trees in old established western woodlands. It is almost identical to L. brebissonii but the isidia are cylindrical, pale blue-grey and restricted to the ridges of the upper surface.

Key Identification Features:

  • Like L. brebissonii but found among mossy tree bases, especially sallow
  • Isidia cylindrical (not granular), pale blue-grey.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Leptogium coralloideum at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Leptogium coralloideum at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Leptogium coralloideum. (Meyen & Flot.) Vain. . [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=500067. Accessed on 2026-11-12.