Mycosphaerella, one of the largest genera of ascomycetes, encompasses several thousand species and has anamorphs residing in more than 30 form genera. Although previous phylogenetic studies based on the ITS rDNA locus supported the monophyly of the genus, DNA sequence data derived from the LSU gene distinguish several clades and families in what has hitherto been considered to represent the Mycosphaerellaceae. Several important leaf spotting and extremotolerant species need to be disposed to the genus Teratosphaeria, for which a new family, the Teratosphaeriaceae, is introduced. Other distinct clades represent the Schizothyriaceae, Davidiellaceae, Capnodiaceae, and the Mycosphaerellaceae. Within the two major clades, namely Teratosphaeriaceae and Mycosphaerellaceae, most anamorph genera are polyphyletic, and new anamorph concepts need to be derived to cope with dual nomenclature within the Mycosphaerella complex.

中文翻译：

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球腔菌属是多系的。

球腔菌属是子囊菌中最大的属之一，包含数千种，无性型分布在 30 多个属中。尽管之前基于 ITS rDNA 基因座的系统发育研究支持该属的单系性，但源自 LSU 基因的 DNA 序列数据区分了迄今为止被认为代表球腔菌科的几个分支和科。需要将几种重要的叶斑病和极端耐受物种归入畸球菌属，为此引入了一个新科，畸球菌科。其他不同的分支代表裂殖科、大卫科、Capnodiaceae 和 Mycosphaerellaceae。在两个主要分支，即 Teratosphaeriaceae 和 Mycosphaerellaceae 中，大多数无性型属是多系的，需要衍生新的无性型概念来应对 Mycosphaerella 复合体中的双重命名法。