Nigrograna Gruyter, Verkley & Crous, Stud. Mycol. 75: 31 (2012).
MycoBank number: MB 564794; Index Fungorum number: IF 564794; Facesoffungi number: FoF 08318; 16 morphological species (Species Fungorum 2020), 16 species with sequence data.
Type species – Nigrograna mackinnonii (Borelli) Gruyter, Verkley & Crous, Stud. Mycol. 75: 31 (2012).
≡ Pyrenochaeta mackinnonii Borelli, Castellania 4(12): 230 (1976).
Notes – Nigrograna was described by De Gruyter et al. (2013) as a monotypic asexual genus with Nigrograna mackinnonii as a human pathogen. Jaklitsch & Voglmayr (2016) introduced three new species Nigrograna mycophile, N. norvegica, N. obliqua from Austria and Norway. Also, they synonymized Melanomma fuscidulum (≡ Sphaeria fuscidula) as Nigrograna fuscidula. Hyde et al. (2017) and Tibpromma et al. (2017) introduced Nigrograna thymi (Italy) and N. cangshanensis (China), respectively. Nigrograna locuta-pollinis was introduced by Zhao et al. (2018) from hive-stored pollen (Brassica campestris). Kolařík (2018) introduced N. antibiotica, N. carollii, N. peruviensis and N. yasuniana by synonymizing the endophytic Biatriospora species in Kolařík et al. (2017). Two new species Nigrograna samueliana and N. rhizophorae were introduced from marine habitats by Dayarathne et al. (2020).