Original Contribution NEW DATA ON DIAPORTHALES FROM SOUTHWEST BULGARIA

Studies on saprotrophic foliicolous ascomycetous fungi found in Southwest Bulgaria were done. Microscopic examinations of these materials were carried out. Results from nineteen species (eighteen species of the Gnomoniaceae and one of the Valsaceae) of diaporthalean foliicolous fungi are hereby presented. Ten of the species represent the genus Gnomonia. Geum montanum is new to Bulgaria substratum of Gnomonia gei-montani, while Prunus cerasifera is a new substratum of Apiognomonia erythrostoma in the country. Apiognomonia errabunda, Gnomonia setacea and Hypospilina pustula were found on dead leaves of Castanea sativa. Tilia cordata is a new substratum of A. errabunda in Bulgaria. Nine species of the Diaporthales from the region of Slavyanka Mt have been observed for the first time. In addition, this was the first time when these studie