| Marasmiellus cinereus Singer, 1973 |
| Marasmiellus cnacopolius Singer, 1973 |
| Marasmiellus corynophloeus Singer, 1973 |
| Marasmiellus crinipelloides Singer, 1973 |
| Marasmiellus cubensis (Berk. & M. A. Curtis) Singer, 1962 |
| Marasmiellus dendroegrus Singer, 1973 |
| Marasmiellus dryogeton Singer, 1973 |
| Marasmiellus fibula (Bull.) Singer, 1948 |
| Marasmiellus gomez-pompae Singer, 1973 |
| Marasmiellus guzmanii Singer, 1973 |
| Marasmiellus hondurensis (Murrill) Singer, 1973 |
| Marasmiellus ignobilis (Berk. & Broome) Pegler, 1977 |
| Marasmiellus inoderma (Berk.) Singer, 1955 |
| Marasmiellus nigripes (Fr.) Singer, 1948 |
| Marasmiellus oblongisporus Singer, 1973 |
| Marasmiellus paurosporus Singer, 1959 |
| Marasmiellus polyphyllus Singer, 1973 |
| Marasmiellus ramealis (Bull.) Singer, 1948 |
| Marasmiellus semiustus (Berk. & Curtis) Singer, 1948 |
| Marasmiellus subramealis (Dennis) Singer, 1952 |