Tulosesus callinus

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

Taxonomy
It was first described as Coprinus callinus by mycologists Morten Lange and Alexander H. Smith in 1952.

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 callinus until 2020 when the German mycologists Dieter Wächter & Andreas Melzer reclassified many species in the Psathyrellaceae family based on phylogenetic analysis.