 "Hygrocybe" itself has been split into subgenera, several of which – notably "Cuphophyllus" (= "Camarophyllus" sensu Singer, non Fries) and "Gliophorus" Herink – have subsequently been raised to generic rank.Some species, such as the mauve splitting waxcap ("Humidicutis lewelliniae"), have been described in the small genus "Humidicutis".Recent molecular research, based on cladistic analysis of DNA sequences, suggests that "Hygrocybe" as currently understood is paraphyletic and does not form a single clade within the Hygrophoraceae.