 The introduction of affordable sequencing technology during the first decade of the 21st century
allowed for much more accurate species delimitation and phylogenetic elucidation, leading to the conclusion that the broad taxonomic description of the genus "Mycosphaerella" and a lack of clear morphological features led to many "Mycosphaerella" and mycosphaerella-like species being misidentified.Because the classic taxonomic description of "Mycosphaerella" is broad and includes so many mycosphaerella-like species, the traditional generic concept of "Mycosphaerella" will hereafter be referred to as "Mycosphaerella" sensu lato (s.lat.)