- Arthaber, Gustav von, 1864-
- Arthaud, Charles.
- Artheau, Malvina
- Arthington, Angela
- Arthington, Angela H
- Arthofer, Wolfgang
- Arthur A. Arenius (Nursery)
- Arthur A. Kirchhoff (Firm)
- Arthur B. Main (Firm)
- Arthur Bryant & Son.
- Arthur C. Koerner (Firm)
- Arthur C. Perrin (Firm)
- Arthur Cann (Firm)
- Arthur Cowee (Firm)
- Arthur D. Little, Inc.
- Arthur Dings (Firm)
- Arthur Dummett (Nursery),
- Arthur Dummett Inc.
- Arthur E. Snow (Firm),
- Arthur Elliott (Firm),
- Arthur G. Lee & Bro.
- Arthur G. Lee (Firm)
- Arthur G. Lee (Firm),
- Arthur H. Thomas Co.
- Arthur Harris & Son.
- Arthur J. Collins & Son.
- Arthur L. Mitchell (Firm)
- Arthur L. Norton (Firm)
- Arthur L. Watson (Firm)
- Arthur L. Watson Nurseries.
- Arthur Lee (Firm)
- Arthur Lee Nurseries.
- Arthur Papke (Firm)
- Arthur R. Heggan (Firm)
- Arthur Roos (Firm)
- Arthur T. Boddington (Firm)
- Arthur T. Goldsborough (Firm)
- Arthur Yates & Co.
- Arthur, Brother
- Arthur, Alex
- Arthur, Anthony
- Arthur, David Leahy
- Arthur, Don R.
- Arthur, J M
- Arthur, Joseph Charles, 1850-1942
- Arthur, Review By: J C
- Arthur, Robert.
- Arthur, Stanley Clisby.
- Arthur, Stephen
- Arthur, Stephen M.
- Arthur, Stephen W.
- Arthur, Valter
- Arthur, W. John
- Arthurs, Steven P.
- Arthurs, William
- Arthus Bertrand (Firm) publ. active 1800-1857-
- Arthus, Gotthard, 1568-
- Arthus, Maurice, 1862-1945
- Article
- Artico, Leonardo Luís
- Artigas Azas, Juan Miguel
- Artigas, Jorge N., 1929-
- Artigas, Luis Felipe.
- Artigas, Paulo de Toledo.
- Artioli, Luiz G. S.
- Artis, Edmund Tyrell, 1789-1847
- Artley, Donald K.
- Artman, C. E.
- Artman, Charles E. (Charles Enos), 1888-
- Artobolevskiĭ, V. M.
- Artois, Tom
- Artokhin, Konstantin Sergeevich
- Artoni, Roberto Ferreira.
- Artschwager, Ernst, 1889-1957
- Artur, Mariana Aline Silva
- Arturi, Marcelo Fabian
- Artuso, Christian
- Artz, Lena
- Artzner, Darrah.
- Arulprakash, R
- Arumdhati, Fayeza Shasliz
- Arumí, Jose L.
- Arumugam, Nivaarani
- Arumugam, P. T.
- Arumugam, R.
- Arumugam, S
- Arun, B.
- Arun, L. K.
- Arun, P. R.
- Aruna, V.
- Arunachalam, M.
- Arunachalam, S.
- Arunakumaren, Jerome
- Arunalakshmi, V.
- Arundal, Walter B
- Arundale, Wendy Hanford, 1945-
- Arunkumar, Laifrakpam
- Arup, Paul S.
- Arup, Ulf
- Arvanitidis, Christos
- Arvayo, Miguel Antonio
- Arvet-Touvet, Casimir, 1841-1913
- Arvey, M. Dale
- Arvida Nursery, Inc.,
- Arvidson, C.
- Arvidson, Lance D
- Arvidson, Ryan
- Arvidsson, Dale
- Arvik, Jon H
- Arvill, A. M.
- Arvista Gardens.
- Arvizo, E R
- Arvizu, Valentin
- Arvy, L.
- Arvy, Lucie, 1907-1990
- Arwidsson, I
- Arwidsson, Ivar, 1873-1936
- Ary Spek (Firm)
- Arya, Dhani
- Arya, L. S.
- Aryafar, Helena
- Arzabe, Cristina
- Arzamendia, Vanesa
- Arzamendia, Yanina
- Arzanlou, Mahdi
- Arzena F. Langlois (Firm)
- Arzola González, Juan Francisco
- Arzolla, Frederico Alexandre Roccia Dal Pozzo
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- Arzube, M.
- Arzuffi, R.
- Arzuza, Diana
- As, Ben van
- Asad, Muhammad
- Asada, Masahiko
- Asada, Nobuhiko
- Asadi, Gholamhosein.
- Asadi-Farfar, Maryam
- Asaeda, Toshio, 1914-1990
- Asaev, M. G.
- Asafu-Adjaye, J.
- Asahina, Audrey Y
- Asahina, Kiyoshi
- Asahina, Masako
- Asai, Etsuo
- Asai, Tatiane
- Asakawa, Yohko
- Asakura, Akira
- Asami, Kouichi
- Asami, Takahiro
- Asana, J. J.
- Asano, Karen Miyuki
- Asano, Kiyoshi
- Asanok, Lamthai
- Asante, William J
- Asanza, Mercedes
- Asao, Tezro
- Asarco Inc.
- Asari, K. Peethambaran.
- Asase, Alex
- Asashima, Makoto
- Asatulloev, Temur
- Asbjørnsen, Peter Christen, 1812-1885
- Asbury Park Home Nurseries.
- Ascanio, David
- Ascanius, Peder, 1723-1803
- Ascaray, Carol M
- Ascaso, C.
- Ascenção, Bruno Marques
- Ascencio, Enrique
- Ascencio, Felipe
- Ascêncio, Sérgio Donizeti
- Ascencio-Arrayga, José de Jesús
- Ascendino, SHS
- Ascensão, Fernando
- Ascenso, Alexandre Cordeiro
- Ascerno, M. E.
- Asch, Andreas
- Aschauer, B.
- Asche, Manfred.
- Aschemeier, C. R.
- Aschendorff, Emil
- Ascher, Denise
- Ascher, John S.
- Ascher, Ryan
- Aschero, Valeria
- Ascherson, F. M.
- Ascherson, Paul, 1834-1913
- Aschoff, Jürgen, 1913-1998
- Asciutto, K
- Ascoli, Davide
- Ascorra, César F.
- Ascuntar-Osnas, Oscar
- Asder Orchids,
- Asefa, Addisu
- Aseginolaza Iparragirre, Karlos
- Asem, Alireza
- Asencio-Santofimio, Helberg
- Asenjo, Angélico
- Asenjo, Carlos A
- Asensio, Manuel
- Asfaw, Eyob
- Asfora, Paulo Henrique
- Asgaard, Ulla
- Asgarian, Ali
- Asghar, M.
- Asghari, Raheleh
- Asgrow Seed Company,
- Ash, Andrew N. (Andrew Nenzel), 1949-
- Ash, Edward C. (Edward Cecil), 1888-
- Ash, Edward Cecil, 1888-
- Ash, Gary
- Ash, J. S.
- Ash, James E. (James Earle), 1884-1986
- Ash, Neville
- Ash, Noreen
- Ash, Sidney R
- Ash, Thomas.
- Ashaharraza, Khan
- Ashari, Hidayat
- Ashbrook, F. G. (Frank Getz), 1892-1966
- Ashburn, Lisa
- Ashburn, Pat.
- Ashburner, Charles A
- Ashburner, Michael
- Ashburner, Robert William.
- Ashby Nursery.
- Ashby, Arthur W.
- Ashby, B. Hunt.
- Ashby, C. B.
- Ashby, Charlotte Munchmeyer.
- Ashby, Edwin
- Ashby, Kenneth R
- Ashby, Marcel.
- Ashby, Thomas
- Ashby, William Ross.
- Ashcraft Plant Nursery,
- Ashcraft, J. B.
- Ashcraft, Susan E
- Ashcraft, Wilbert E.
- Ashcraft'S Plant Nursery,
- Ashcroft Orchids (Nursery),
- Ashcroft, Carl J
- Ashcroft, Michael B
- Ashdown, L W
- Ashe, James S. (James Stephen), 1947-
- Ashe, Patrick
- Ashe, Sanda
- Ashe, Thomas, 1770-1835
- Ashe, W. W. (William Willard), 1872-1932