Order: Agyriales Family: Agyriaceae
Species: Trapeliopsis pseudogranulosa
Photos: Gougane Barra, Co. Cork, SW Ireland.
Specimen identified by John Douglass
Minutely-granular grey or greenish-white thallus with distinctive orange patches. Greenish-white, orange-pigmented soralia that can form large patches. Apothecia absent in Britian and Ireland.
Occurs throughout Ireland on humid, +/- shaded, acidic substrates. Often found in old woods and heaths on wet peat, mosses, rotting wood and plant debris.
Thallus and soralia: C+ red, P-, UV-. Orange patches K+ purple
Similar: T. granulosa. Apothecia present, pioneer on burnt heaths.
Trapeliopsis pseudogranulosa. October 2009