Description of three new and very striking species of Psathyrella: P. amstelodamensis (thick-walled muricate cystidia, abundant veil, phaseoliform spores, spore-print dark reddish-brown), P. narcoticus (stem conspicuously rooting, strong smell of scatol, cheilocystidia covered with abundant mucoid deposits, staining bluish-green in NH4OH), P. pervelata (very thick and scaly universal veil, subcapitate to subutriform cystidia, flesh of cap hardly and trama of gills not pigmented).