The taxonomy of Psathyrella has undergone significant revision:
: There are estimated to be over 500–600 species worldwide, though many remain poorly understood or await formal description. NOTES ON THE GENUS PSATHYRELLA
: Species like Psathyrella piluliformis grow in clusters on decaying wood. NOTES ON THE GENUS PSATHYRELLA
These fungi are primarily , meaning they decompose organic matter. Their habitats vary widely: Terrestrial : Many grow directly on soil. NOTES ON THE GENUS PSATHYRELLA
: Much of the foundational work on European species was published by Emile Kits van Waveren in his series "Notes on the Genus Psathyrella" and his 1985 monograph.