Description: This rare, foliose lichen is very similar to P. norvegica (described elsewhere), but differs in the C- medulla and the smooth, upper surface of the lobes (they are ridged in P. norvegica). It has marginal, pale grey, farinose soralia. By contrast P. lacerata has cylindrical isidia. In Ireland, it is known from Counties Kerry and Kilkenny but was previously more widespread. It grows on shaded, mossy trees in old woodlands and on large boulders in or near upland tarns and loughs.

Key Identification Features:

• Lobes with smooth upper surface and C- medulla (C+ red in P. norvegica)
• Lobe margins sorediate (not isidiate), that is, with tiny blue-grey granules not cylindrical, stick-like projections.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Pseudocyphellaria intricata at iNaturalist World Species Observations database.