| Muscarella segregatifolia (Ames & C. Schweinf.) Karremans, 2016 |
| Myoxanthus Poepp. & Endl., 1836 |
| Myoxanthus colothrix (Luer) Luer, 1982 |
| Myoxanthus congestus (A. Rich. & Galeotti) Soto Arenas, 2008 |
| Myoxanthus octomeriae (Schltr.) Luer, 1982 |
| Myoxanthus octomerioides (Lindl.) Luer, 1982 |
| Myrmecophila Rolfe, 1917 |
| Myrmecophila brysiana (Lem.) G.C. Kenn., 1979 |
| Myrmecophila christinae Carnevali & Gómez-Juárez, 2001 |
| Myrmecophila christinae var. christinae Carnevali & Gómez-Juárez, 2001 |
| Myrmecophila christinae var. ibarrae Carnevali & Tapia-Muñoz, 2001 |
| Myrmecophila exaltata (Kraenzl.) G.C. Kenn., 1979 |
| Myrmecophila galeottiana (A. Rich. & Galeotti) Rolfe, 1917 |
| Myrmecophila grandiflora (Lindl.) Carnevali, Tapia-Muñoz & I. Ramírez, 2001 |
| Myrmecophila sanderiana (Rolfe) Rolfe, 1917 |
| Myrmecophila tibicinis (Bateman) Rolfe, 1917 |
| Myrmecophila x laguna-guerrerae Carnevali, Ibarra-González & J.L. Tapia, 2001 |
| Myrobroma Salisb., 1807 |
| Myrobroma fragrans Salisb., 1807 |
| Nageliella L.O. Williams, 1940 |