Focuses on the ecology, distribution and effects on hosts exhibited by 14 species of the basidial fungi, Exobasidiales in Scotland. Articomyces warmingii; E. angustisporum; E. arescens; E. expansum; E. japonicum; E. juelianum; E. karstenii; E. myrtilli; E. oxycocci; E. rostrupii; E. sydowianum; E. vacinii; Microstroma album.