Verticillium Nees, Syst. Pilze (Würzburg): 57 (1816)
MycoBank number: MB 10400; Index Fungorum number: IF 10400; Facesoffungi number: FoF 00162; 81 morphological species (Species Fungorum 2020), 20 species with sequence data.
Type species – Verticillium dahliae Kleb.
Notes – Species of this genus are plant pathogens (Domsch et al. 2007). This genus is characterized by conidiophores arising from submerged hyphae or aerial mycelium, erect, mostly verticillate, septate, hyaline to subhyaline, sometimes turning brown at the base. Conidiogenous cells are enteroblastic, monophialidic, inserted in a mesotonous to acrotonous position, terminal, lateral, flask-shaped or aculeate, hyaline, with inconspicuous collarettes. Resting structures include pigmented resting mycelium, chlamydospores in short chains, and/or microsclerotia (Giraldo & Crous 2019).