| Clitocybe pinophila (Peck) Sacc., 1887 |
| Clitocybe rosella M.M. Moser, 1950 |
| Clitocybe squamulosa (Pers.) P. Kumm., 1871 |
| Clitocybe squamulosa var. sicca H. E. Bigelow, 1968 |
| Clitocybe squamulosa var. squamulosa (Pers.) P. Kumm., 1871 |
| Clitocybe suaveolens (Schumach.) Fr., 1871 |
| Clitocybe subclavipes Murrill, 1916 |
| Clitocybe trulliformis (Fr.) P. Karst., 1879 |
| Collybia (Fr.) Staude, 1857 |
| Collybia acervata (Fr.) P. Kumm., 1871 |
| Collybia alkalivirens Singer, 1948 |
| Collybia butyracea (Bull.) P. Kumm., 1871 |
| Collybia confluens (Pers.) P. Kumm., 1871 |
| Collybia cookei (Bres.) J. D. Arnold, 1935 |
| Collybia cubensis (Berk. & M. A. Curtis) Dennis, 1951 |
| Collybia cystidiosa A. H. Sm. & Hesler, 1940 |
| Collybia distorta (Fr.) Quél., 1872 |
| Collybia dryophila (Bull.) P. Kumm., 1871 |
| Collybia egregis Halling, 1983 |
| Collybia fibrosipes (Berk. & M. A. Curtis) Dennis, 1951 |