The lichenicolous fungi Calycina alstrupii, Clypeococcum cladonema, Laetisaria lichenicola and Stigmidium humidum are reported as new to North America. The hepaticolous fungus Epibryon hypophyllum is reported as new to western North America. The lichenicolous fungi Sphaerellothecium pumilum and Stigmidium gyrophorarum are reported as new to northwestern North America. The hepaticolous fungus Epibryon metzgeriae is reported as new to the USA, and the lichenicolous fungi Niesslia lobariae, Plectocarpon nephromeum and Protounguicularia nephromatis are reported as new to the contiguous 48 states of the USA. Extra-limital records for the taxa Cercidospora stenotropae, Epibryon bryophilum s. lat. and E. casaresii s. lat. are discussed.