[2] It was first described in 1975 by the French mycologist Georges Jean Louis Malençon from a specimen found in Morocco and classified as Clitocybe amoenolens.

[3] In 2012, following DNA analysis, Vizzini and Ercole assigned this species to the new genus Paralepistopsis, which forms a separate clade from other Clitocybes.

[4] This change has been accepted by Index Fungorum and the Global Biodiversity Information Facility and so the correct name is currently Paralepistopsis amoenolens.

[5][6] It was discovered to be poisonous after several people had consumed specimens all found in the alpine Maurienne valley in the Savoie department over three years.

[7] The resulting syndrome of fungus-induced erythromelalgia lasted from 8 days to 5 months, although one person exhibited symptoms for three years.