- Merino, Mariano L
- Merino, Mariano L.
- Merino, Santiago
- Merino, V
- Merino-Sáinz, Izaskun
- Merino-Viteri, Andrés
- Meritt, Dennis A. Jr.
- Meriwether, J.
- Meriwether, J. D.
- Merizies, Archibald
- Merk, Reece
- Merkel Nursery.
- Merkel, E. P.
- Merkel, Eduard
- Merkel, F W
- Merkel, Friedrich, 1845-1919
- Merkens, Sabine
- Merker, Ernst
- Merkieield, Fredeeic
- Merkl, M. E.
- Merkl, Ottó 1957-
- Merkle, D A
- Merkle, Donald A
- Merkley, John Wilburn, 1938-
- Merklinger, Felix F.
- Merkulov, A
- Merkus, Henricus (Leipzig)
- Merle D. Allen (Firm),
- Merle Payne Mum Gardens
- Merle, D
- Merle, Didier
- Merlin, M. (Philippe-Antoine), 1754-1838
- Merlino, B
- Merlino, Bruna
- Merlo, Carolina
- Mermet, C.
- Mermier, F
- Mermod, Claude
- Mermod, G
- Mermoz, Myriam Emilia
- Mermudes, José Ricardo Miras
- Mermut, A. R.
- Mero-Del-Valle David
- Meroi A, Facundo R
- Merona, Bernard de
- Mérona, Bernard de
- Merrell, Lewis C.
- Merrell, Orel M.
- Merrell, William Dayton
- Merrell-Soule Company (Syracuse, N.Y.)
- Merrem, Blasius, 1761-1824
- Merrett, M F
- Merrett, Nigel R
- Merrett, P J
- Merriam & Cairns Co.
- Merriam, Aileen 1932-
- Merriam, Augustus C
- Merriam, C. Hart (Clinton Hart), 1855-1942
- Merriam, Debbie
- Merriam, Edward D. (Edward Douglas), 1827-1907
- Merriam, Gray
- Merriam, H. G.
- Merriam, J C
- Merriam, John C. (John Campbell), 1869-1945
- Merriam, Mervin M.
- Merrick, Amanda Dickson
- Merrick, J R
- Merrick, J. M.
- Merrick, William.
- Merrifield, Frederic
- Merrifield, Kathy
- Merrifield, Mark
- Merrilees, D
- Merrilees, Duncan
- Merrill, A S
- Merrill, Alice Ranney Thompson, 1883-
- Merrill, Amos Newlove.
- Merrill, Arthur S
- Merrill, C. G.
- Merrill, Dorothy.
- Merrill, Elmer D. (Elmer Drew), 1876-1956
- Merrill, F. A.
- Merrill, F. A. (Frederick Augustus), 1875-
- Merrill, Frank T., 1848-
- Merrill, G K
- Merrill, G P
- Merrill, G. L. Smith
- Merrill, G.K. (George Knox), 1864-1927
- Merrill, George P. (George Perkins), 1854-1929
- Merrill, Glen K.
- Merrill, J C
- Merrill, J. H.
- Merrill, J. Warren (Joseph Warren), 1819-1889
- Merrill, James Andrew.
- Merrill, James C
- Merrill, James Cushing, 1853-1902
- Merrill, Jason L.
- Merrill, John L
- Merrill, Joseph Henry, 1881-
- Merrill, Laura D.
- Merrill, Laura Margareth.
- Merrill, M C
- Merrill, Richard W.
- Merrill, Samuel B.
- Merrill, Samuel, 1855-
- Merrill, Selah, 1837-1909
- Merrill, W. V.
- Merrill, William.
- Merrill, Willis O.
- Merrimac Valley Nurseries.
- Merrimack Farmers' Exchange, Inc.,
- Merriman Nurseries
- Merriman, Alan J
- Merriman, C C
- Merriman, D
- Merriman, Daniel
- Merriman, Ida
- Merriman, Irving H.
- Merriman, Jean A
- Merriman, John X
- Merriman, Mabel L
- Merriman, Mansfield
- Merriman, R. Owen 1894-1935
- Merriman, S. N.
- Merrin, Joseph, 1820-1904
- Merrin, Joseph.
- Merrin, Kelly L.
- Merrion, H. Joseph.
- Merritt & Sorensen.
- Merritt, Anna Lea, 1844-1930
- Merritt, D J
- Merritt, David
- Merritt, Dixon Lanier, 1879-
- Merritt, Eugene, 1880-
- Merritt, Henry Clay, 1831-
- Merritt, Joanie M.
- Merritt, John W.
- Merritt, Joseph F.
- Merritt, Joseph S.
- Merritt, Joseph S., Jr.,
- Merritt, Lavere B
- Merritt, Peter G
- Merritt, R W
- Merrman, Jean A
- Merry Gardens,
- Merry Grass Nursery,
- Merry, Luis J. Ortiz
- Merry, Roger
- Merry, Thomas B.
- Merrymount Press.
- Merrys,
- Merscheid, Emil.
- Mershon, Wm. B. (William Butts), 1856-1943
- Mersing, W
- Mersmann, T A
- Mert, Ahmet
- Mertens, Arne
- Mertens, Franz
- Mertens, Franz Carl, 1764-1831
- Mertens, Frédéric
- Mertens, J.
- Mertens, Jan
- Mertens, Jochen
- Mertens, Johan
- Mertens, Joost
- Mertens, Karl Heinrich, 1796-1830
- Mertens, L. A. J. M.
- Mertens, R.
- Mertens, Robert, 1894-
- Mertens, Thomas R
- Mertes, Katherine J.
- Mertes, Leal A K
- Mertin, Allison
- Mertins, Omar
- Merton G. Ellis (Firm)
- Merton G. Ellis Bulb Gardens (Firm),
- Merton G. Ellis Bulb Gardens.
- Merton G. Ellis Test Gardens.
- Merton, Don
- Mertz, Henry Ney.
- Mertz, Johann Georg,
- Mertzanis, Yorgos
- Meruane, Jaime A.
- Merula, Giorgio, 1494
- Merusse, José Luiz Bernardino
- Merveillie, Luc
- Merwin Sales Company, New York.
- Merwin, Deirdre S.
- Merwin, H E
- Merwin, Henry Childs, 1853-1929
- Merxmüller, Hermann
- Merz, Albert R. (Albert Ronald), 1887-1970
- Merz, Alfred
- Merz, Anna
- Merz, B
- Merz, Bernhard
- Merz, Johannes
- Merz, John Theodore, 1840-1922
- Merz, John Theolddore, 1840-1922
- Merz, Norm.
- Merz, R
- Merz, Rachel Ann
- Merz, Robert W.
- Merz, Robert William, 1913-
- Merz, Sharon
- Merzbacher, Ludo.
- Mesa Verde Gardens,
- Mesa, A
- Mesa, Aldo
- Mesa, Circe
- Mesa, Johan
- Mesa, Laura
- Mesa, Leticia M
- Mesa, Luis Herrera
- Mesas, Andrés
- Mesavage, Clement,
- Mesa-Zavala, Erika
- Mesbah, Amel
- Mesbah, Melilia
- Meschiatti, A. J.
- Meschinelli, Luigi, 1865-
- Meschnigg, Josef
- Mesecar, Roderick S.
- Meserve, F G
- Meserve, F G C
- Meserve, P L
- Meserve, Peter L
- Mesfer, Fahad
- Mesfin Tadesse
- Meshaka, Walter E
- Meshirer, William.
- Meshram, Naresh
- Meshram, Vineet
- Meši, Armin
- Mesibov, Robert
- Mešić, Armin
- Mesić, Zrinka
- Mesick, Tyler
- Mesili, Thibeault
- Mesjasz-Przybylowicz, J
- Meskers Bros. (Lisse, Holland)
- Mesler, M R
- Mesler, Michael
- Mesler, Michael R
- Meslin, R
- Meslin, Roger
- Meslow, E C
- Meslow, E. Charles,
- Meslow, E. Charles.
- Mesmer, Louis.