The new combination Polycoccum hymeniicola is introduced and a description of this insufficiently known fungus provided. This species and Chalara lobariae, Merismatium nigritellum, and Niesslia lobariae are new to North America. Arthrorhaphis aeruginosa, Lichenopuccinia poeltii, Opegrapha sphaerophoricola, and Roselliniella cladoniae are new to Alaska. Specimens of Abrothallus sp. with associated conidiomata on Erioderma sorediatum and of Paranectria cf. alstrupii on Fuscopannaria laceratula are discussed