| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Medel, R. G. | 1994–1996 | 3 | – |
| Medina, M. | 1889–1893 | 3 | – |
| Medler, J. T. | 1980 | 1 | – |
| Medvedev, G. S. | 1978 | 1 | – |
| Medvedev, L. N. | 1976 | 1 | – |
| Meer, R. K. V. | 1988 | 1 | – |
| Meganck, K. | 2021 | 1 | – |
| Meggers, B. J. | 1973 | 1 | – |
| Mehdiabadi, N. J. | 2010 | 1 | – |
| Mehlhop, P. | 1982 | 1 | – |
| Mei, M. | 1984–2021 | 8 | 2 |
| Meier, R. | 1994–2017 | 5 | – |
| Meinert, F. | 1861 | 1 | 1 |
| Meinwald, J. | 1983 | 1 | – |
| Melander, A. L. | 1937 | 1 | – |
| Meleng, P. | 2023 | 1 | – |
| Mellender de Araujo, A. | 2002 | 1 | – |
| Mello, V. R. L. | 1999 | 1 | – |
| Melo, G. A. R. | 2018–2020 | 2 | 4 |
| Melo, M. V. C. | 2005 | 1 | – |
| Melzer, R. R. | 1996 | 1 | – |
| Menchetti, M. | 2020–2024 | 6 | 2 |
| Mendel, H. | 2007 | 1 | – |
| Mendenhall, J. | 2006 | 1 | – |
| Mendes, L. F. | 2008 | 1 | – |
| Mendes, M. | 2002 | 1 | 2 |
| Meneguete, P. S. | 2000 | 1 | – |
| Meneses, A. D. | 2019 | 1 | 4 |
| Meneses, A.D. | 2018 | 1 | – |
| Menke, A. S. | 1985 | 1 | – |
| Menke, S. B. | 2009–2010 | 2 | – |
| Menken, S. B. J. | 1988 | 1 | – |
| Menzel, J. G. | 1994 | 1 | – |
| Menzel, R. | 1970–1972 | 2 | – |
| Menzi, U. | 1986 | 1 | – |
| Mera-Rodríguez, D. | 2023 | 1 | – |
| Mercovich, T. C. | 1958 | 1 | 1 |
| Merickel, F. W. | 1981–1994 | 3 | 2 |
| Merlin, P. | 1987 | 1 | – |
| Mertens, J. | 2002 | 1 | – |
| Mertl, A. L. | 2010 | 2 | – |
| Mesaros, G. | 1989 | 1 | – |
| Mescher, M. C. | 2003 | 1 | – |
| Messer, S. | 2019 | 2 | 1 |
| Messer, S. J. | 2016–2020 | 2 | 3 |
| Metscher, B. | 2018 | 1 | – |
| Meunier, F. | 1915–1923 | 3 | 4 |
| Meunier, L. | 1999 | 1 | – |
| Meurer, E. | 2015 | 1 | – |
| Meusemann, K.; Meusemann | 2011–2017 | 3 | – |
| Meyer, B. | 2011 | 1 | – |
| Meyer, W. J. | 2004 | 1 | – |
| Meyne, J. | 1995 | 1 | – |
| Mezger, D. | 2010–2016 | 3 | 1 |
| Miao, X. | 2020 | 1 | – |
| Miao, Z. | 2019 | 1 | 1 |
| Michaelsen, W. | 1907 | 1 | – |
| Michener, C. D. | 1982 | 1 | – |
| Michez, D. | 2012–2018 | 2 | – |
| Michlewicz, M. | 2015 | 1 | – |