This order of ascomycetes contains around 12 genera and 40 species which are related to the genus Phaeomoniella. The best known member is the grapevine pathogen Phaeomoniella chlamydospora. Several species of the Phaeomoniellales have been shown to infect the trunks of woody plants like grapevine or fruit trees, resulting in a discoloured xylem and wilting. Apart from grapevine, host plants include olive trees, Prunus species, or tropical rambutan trees.
The following genera and species are currently entered under Phaeomoniellales: