Tulosesus ephemerus

Tulosesus ephemerus is a species of mushroom producing fungus in the family Psathyrellaceae.

Taxonomy
It was first described as Agaricus ephemerus by French mycologist Jean Baptiste François Pierre Bulliard in 1786.

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

The species was known as Coprinellus ephemerus until 2020 when the German mycologists Dieter Wächter and Andreas Melzer reclassified many species in the Psathyrellaceae family based on phylogenetic analysis.