The article provides the list of localities of Letharia vulpina in the eastern Julian Alps (northwestern Slovenia) that were recorded by the authors in 2010. Prior to this year the knowledge on the occurence of this lichenized fungus in Slovenia was insignificant (only one known locality, recorded already in the 19th century). With a phytosociological table we present the species composition and structure of natural subalpine larch stands (Rhodothamno-Laricetum deciduae) in which the species Letharia vulpina grows as an epiphyte on old and thick trees. It can also be expected in other Alpine regions in Slovenia where similar natural larch stands are preserved and the air is not over polluted. Članek podaja seznam nahajališč vrste Letharia vulpina v vzhodnih Julijskih Alpah (severozahodna Slovenija), ki so jih avtorji popisali v letu 2010. Pred tem letom je bila vednost o pojavljanju te lihenizirane glive v Sloveniji zelo majhna (eno samo znano nahajališče, opaženo že v 19. stoletju). S fitocenološko tabelo prikazujemo vrstno sestavo in zgradbo naravnih subalpinskih macesnovih sestojev (Rhodothamno-Laricetum deciduae) v katerih vrsta Letharia vulpina raste kot epifit na starih in debelih drevesih. Pričakujemo jo lahko tudi v drugih alpskih območjih v Sloveniji, kjer so ohranjeni podobni naravni macesnovi sestoji in kjer ozračje ni preveč onesnaženo.