Fungi (Jahn & Jahn, 1959)
   Class Gymnocarpi
     Order Hymenothecii
       Agarici
         Genus Agaricvs L. (1753), nom. sanct., nom. cons.
           Section Gymnopvs Pers. (1801)
             Color plus minusue violaceus, purpurascens, aut caesius. (Agaricus nudus. Nonnulli vmbilicati. Ag. denticulatus Bolt.)