(2001) maintained both the "Hysteriaceae" and the "Mytilinidiaceae" in the "Hysteriales", but Eriksson (2006) removed the Mytilinidiaceae from the Hysteriales and considered it as Dothideomycetes et 'Chaetothyriomycetes "incertae sedis", leaving the Hysteriaceae as the sole family in the Hysteriales.The Hysteriaceae may show superficial resemblance with the Patellariaceae Corda (Patellariales Hawksw.