We provide the first North American report of the lichenicolous fungus Pronectria fragmospora. Based on multigene phylogenetic analyses we found this species to be nested within the genus Trichonectria and the new combination Trichonectria fragmospora is proposed. We provide a description and photos of the North American material on Evernia prunastri and a phylogenetic tree showing its placement within the genus. We also compare this species to related species of Trichonectria and similar species of Pronectria. Key words. Evernia prunastri, new combination, Pronectria, Washington, Whatcom County.