Keissleriella Höhn., Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften Math.- naturw. Klasse Abt. I 128: 582 (1919).

MycoBank number: MB 2553; Index Fungorum number: IF 2553; Facesoffungi number: FoF 07424; 37 morphological species (Species Fungorum 2020), several species with molecular data.

Type speciesKeissleriella aesculi (Höhn.) Höhn., Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften Math.-naturw. Klasse Abt. I 128: 582 (1919).

Pyrenochaeta aesculi Höhn., Ber. dt. bot. Ges. 35(3): 249 (1917).

NotesKeissleriella is one of the most species rich genera in Lentitheciaceae with 45 taxa in Index Fungorum (39 from Lentitheciaceae). Keissleriella is characterised by an ostiolar neck covered by short dark setae. See Tanaka & Harada (2005b), Zhang et al. (2012b), Tanaka et al. (2015) and Wanasinghe et al. (2018c) for further details.

Species