Anisomeridium viridescens and Arthopyrenia callunae, two pyrenolichens new to Fennoscandia

Abstract

Lichens with perithecioid ascomata (‘pyrenolichens’), especially weakly lichenized species, are poorly known in Norway, and Fennoscandia. Several new country records for Norway have been published recently (Nordén et al. 2013, Nordén 2016, Nordén & Jordal 2016). We here report two additional pyrenolichen species as new to Fennoscandia. They were found during a workshop on the lichens and lichenicolous fungi of the boreonemoral rainforests in Hordaland, western Norway, in 2018.