 To remedy this nomenclatural instability, Cony Decock and Joost Stalpers proposed to conserve "Perenniporiella" with "P. medulla-panis" as the type.Although "Truncospora" has traditionally been considered a synonym of "Perenniporia", molecular phylogenetic analysis shows that it is genetically unique and worthy of recognition as a distinct genus.Genera that have been segregated from "Perenniporia" include "Perenniporiopsis" and "Perenniporiella".