Diaporthe thailandica (MFLU 23–0473, holotype) a host substrate b, c ascomata on host substrate d vertical section through ascoma e peridium f ostiole g hamathecium h–j asci k–n ascospores o a germinated ascospore p front and reverse view of the colony on PDA. Scale bars: 200 μm (b); 100 μm (c, d); 20 μm (e–j); 10 μm (k–o).