In 1922 it was named as a variant of Laccaria laccata, Laccaria laccata var. amethystina (Cooke) Rea, which is now a synonym.
En 1922 nomeouse coma unha variedade de Laccaria laccata, Laccaria laccata var. amethystina (Cooke) Rea, considerada hoxe sinónimo.