| Marasmiellus subramealis var. platani Singer, 1973 |
| Marasmiellus subramealis var. subramealis (Dennis) Singer, 1952 |
| Marasmiellus tener Singer, 1973 |
| Marasmius Fr., 1836 |
| Marasmius albogriseus (Peck) Singer, 1943 |
| Marasmius alliaceus (Jacq.) Fr., 1838 |
| Marasmius androsaceus (L.) Fr., 1838 |
| Marasmius atroincrustatus Singer, 1976 |
| Marasmius atroincrustatus var. atroincrustatus Singer, 1976 |
| Marasmius atroincrustatus var. inodorosus Singer, 1976 |
| Marasmius atrorubens (Berk.) Mont., 1854 |
| Marasmius aureus Beeli, 1928 |
| Marasmius aztecus Singer, 1976 |
| Marasmius bahamensis Murrill, 1915 |
| Marasmius bermudensis Berk., 1876 |
| Marasmius berteroi (Lév.) Murrill, 1915 |
| Marasmius bezerrae Singer, 1976 |
| Marasmius bezerrae var. bezerrae Singer, 1976 |
| Marasmius bezerrae var. chitepecensis Singer, 1976 |
| Marasmius brunneocinctus Singer, 1976 |