The third part of a series of monographic treatments of cercosporoid fungi (formerly Cercospora
s. lat., Mycosphaerellaceae, Ascomycota) continues with a treatment of taxa on monocots (Liliopsida;
Equisetopsida, Magnoliidae, Lilianae), covering asexual and holomorph species with mycosphaerellalike
sexual morphs on true grasses (Poaceae), which were excluded from the second part. The species
concerned are keyed out, alphabetically listed, described, illustrated and supplemented by references
to previously published descriptions, illustrations, and exsiccatae. A key to the recognised genera and
a discussion of taxonomically relevant characters was published in the first part of this series. Several
species are lecto- or neotypified. The following taxonomic novelties are introduced: Cercospora barretoana
comb. nov., C. cymbopogonicola nom. nov., Cladosporium elymi comb. nov., Passalora agrostidicola sp.
nov., P. brachyelytri comb. nov., and P. dichanthii-annulati comb. nov.