Description: This ‘dog lichen’ is an uncommon species of mossy tree trunks and fallen timber. The blue-grey or brown thallus is characterised by numerous marginal lobules and a relatively smooth, upper surface. The underside will be seen to have narrow, white, raised veins. In Ireland, the species is known from County Kerry and from one mossy boulder in County Londonderry.

Key Identification Features:

• Thallus blue-grey to brown, smooth with marginal lobules on the lobes
• Underside with narrow, white raised veins.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Peltigera degenii at iNaturalist World Species Observations database.