Pseudoomphalina [SEP] parent taxon
Pseudoomphalina
Pseudoomphalina is a genus of fungi in the placed in the family Tricholomataceae for convenience. The genus contains six species that are widespread in northern temperate areas. "Pseudoomphalina" was circumscribed by Rolf Singer in 1956. "Pseudoomphalina" was found to be paraphyletic to "Neohygrophorus" in a molecular phylogenetics study and since "Pseudoomphalina" is an older name, "Neohygrophyorus" was synonymized with it. The type species of "Neohygrophorus" was "Neohygrophorus angelesianus", now "Pseudoomphalina angelesiana". In earlier classifications based
angelesiana" possesses grey-violaceous pigments
that turn red in alkali solutions and lacks filiform, hyphal sterile elements in its hymenium and stipitipellis. These were features used to distinguish it from "Pseudoomphalina" as a genus, but "Pseudoomphalina umbrinopurpurascens" possesses these same pigments and the filiform elements of "Pseudoomphalina". Molecular phylogenetics studies have also found some former species of "Pseudoomphalina" to belong in other genera. "Pseudoomphalina pachyphylla" was moved to its own genus, "Pseudolaccaria", and "Pseudoomphalina clusiliformis" was