Doubtful according to GBIF classification (Possible variant of Psathyrella scotospora (Romagn.) Bon)
Psathyrella spadiceogrisea var. vernalis (J. E. Lange) M. M. Moser
Heterotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Psathyrella spadiceogrisea (Schaeff.) Maire)