Five species of myxomycetes are reported as new to Sweden viz. Badhamia affinis Rost., B. dubia Nann.-Bremek., Licea biforis Morgon, Physarum cf. stramimpes A. Lister and Physarum cf. mortomi Macbride. Three additional species rarely found in Sweden, Colloderma occulatum (Lippert) G. Lister, Dianema corticatum A. Lister and Macbrideola cornea (G. Lister & Gran) Alexopoulos, are reported from new localities.