Diaporthe Nitschke, Pyrenomyc. Germ. 2: 240 (1870)

MycoBank number: MB 1497; Index Fungorum number: IF 1497; Facesoffungi number: FoF 00146; 450 morphological species (Species Fungorum 2020), 261 species with sequence data.

Type speciesDiaporthe eres Nitschke

NotesDiaporthe is the type genus of Diaporthaceae, and it was established by Nitschke (1867) to accommodate taxa with stromata in the Sphaeriales which are often with blackened zones in the substrate, ellipsoid to fusiform ascospores and enclosed, unilocular pycnidia that contain spermatia, stylospores and conidia (Wehmeyer 1933a). Diaporthe species are saprobes, pathogens and endophytes and have a worldwide distribution (Dissanayake et al. 2017). Phomopsis was earlier the asexual morph (Udayanga et al. 2012). However, these genera were linked based on principle of significance and Diaporthe was nominated over Phomopsis to resolve nomenclatural complications (Rossman et al. 2015). The genus contains 1067 epithets listed in Index Fungorum (August 2019), but fewer than 200 species are accepted (Dissanayake et al. 2017). Diaporthe asheicola, D. eucalyptorum, and D. salsuginosa are illustrated in this entry (Figs. 91, 92, 93, 94 respectively).