This study was carried out in Uludag National Park situated at approximately 1400 m asl on a plateau within the boundaries of Turkey's fifth national park. The Kirazli Plateau has a small drinking water reservoir with favorable conditions for freshwater mitosporic fungi (Ingoldian fungi, or aquatic hyphomycetes). The purpose of this study was to define the distribution and identities of fungi from the reservoir dam and spores trapped in foam from immediately adjacent areas. It presents the distribution and identification of 5 species, Alatospora acuminata Ingold 1942, Dendrospora erecta Ingold 1942, Fontanospora eccentrica (R.H. Petersen) Dyko, Tricladium angulatum Ingold 1942, Tricladium splendens Ingold 1942. Dendrospora erecta, Fontanospora eccentrica and Tricladium splendens are new records for Turkey.