Sphagnurus is a parasitic mushroom genus in the family Lyophyllaceae[1][2] that creates conspicuous dead patches on peat moss (Sphagnum) in bogs.
[3][4][5] The genus contains one species known to inhabit Eurasia and North America.
[1][2] Sphagnurus paluster, the single species in the genus is pale grey and has a mycenoid stature (i.e. has a conical pileus, a narrow elongated stipe and lacks an annulus or volva).
[1] The name Sphagnurus is supposed to be derived from the name of its host Sphagnum and Latin -urus, meaning “tail".
[1] The ancient Greek word οὐρά however means “tail".