Nitschkia G.H. Otth, Bidr. Känn. Finl. Nat. Folk 23: 13 (1873)

Index Fungorum number: IF3515; 52 morphological species (Species Fungorum 2020), 5 species with sequence data.

Type species – Nitschkia fuckelii Nitschke

Notes – The taxonomy of Nitschkia introduced by Karsten (1873) is confused and currently includes 65 species (Index Fungorum 2020). The name Nitschkia fuckelii was first introduced by Nitschke (1870), but Saccardo (1873) suggested Coelosphaeria to replace Nitschkia, because the spelling of “Nitschkia” was similar to the generic name for a diatom. Fitzpatrick (1923) reviewed the nomenclature of Coelosphaeria and the name was rejected. Confusion as to the type species arises because Fuckel (1870) introduced the type species N. fuckelii based on Sphaeria cupularis. Neither taxon has been sequenced, and phylogenetic analysis is based on Nitschkia calyculus, N. grevillei, N. meniscoidea and N. tetraspora (Mugambi & Huhndorf 2010)