Fusarium verticillioides is the most commonly reported fungal species infecting maize (Zea mays). Fusarium verticillioides is the accepted name of the species, which was also known as Fusarium moniliforme. The species has also been described as mating population A of the Fusarium fujikuroi species complex (formally known as Gibberella fujikuroi species complex). F. verticllioides produces the mutagenic chemical compound fusarin C. F. verticillioides produces a group of disease-causing mycotoxins—fumonisins—on infected kernels. Fusarium subglutinans is the anamorph of Gibberella fujikuroi. Fusarium strains in the Gibberella fujikuroi species complex cause diseases in a number of economically important plants. DNA sequencing data reveals the presence of two major groups representing cryptic species in F. subglutinans