(1928) Coprinellus bisporus Vilgalys, Hopple & Jacq.

Johnson (2001) Tulosesus bisporus is a species of mushroom producing fungus in the family Psathyrellaceae.

[1] It was first described as Coprinus bisporus by mycologist Jakob Emanuel Lange in 1915.

[2] In 2001 a phylogenetic study resulted in a major reorganization and reshuffling of that genus and this species was transferred to Coprinellus.

[3] The species was known as Coprinellus bisporus until 2020 when the German mycologists Dieter Wächter & Andreas Melzer reclassified many species in the Psathyrellaceae family based on phylogenetic analysis.