Summary: Notes on 26 taxa of lichens and lichenicolous fungi are presented. New for the flora of Upper Austria are: Biatorella ochrophora, Cercidiospora epipolytropa, Mycobilimbia microcarpa, Rinodina polyspora and Vouauxiomyces truncatus. From the province of Salzburg are reported for the first time: Abrothallus usneae, Absconditella delutula, Acarospora peliscypha, Arthonia molendoi, Catillaria nigroclavata, Cercidiospora ulothii, Cliostomum corrugatum, Lichenoconium erodens, Muellerella polyspora, Phaeosporobolus usneae, Physcia biziana, Skyttea thallophila and Vouauxiomyces truncatus. Figures of ascospores/conidia are provided for Abrothallus usneae, Arthonia molendoi, Lichenoconium erodens, Paranectria superba, Stigmidium schistidii.