- S Barker, R P Mcmillan
- S, D L
- S, Fairbridge W
- S. & J. Bentley and Henry Fley
- S. & J. Bentley, Wilson & Fley
- S. and R. Bentley.
- S. B. Parsons & Sons.
- S. B. Vreeland (Firm)
- S. Bash & Co.
- S. Boardman & Co.
- S. Bryson Ayres Co.
- S. Crowder and H. Woodgate
- S. E. Cassino & Co,
- S. E. Hall (Firm)
- S. Edward Paschall (Firm)
- S. F. Mercer (Firm)
- S. G. Harris (Firm)
- S. H. Lazarus (Firm)
- S. H. Notley (Firm)
- S. H. Purple (Firm)
- S. H. Warren (Firm)
- S. H. Warren (Weston, Mass.)
- S. J. Vermeul (Firm)
- S. Jabaily, Rachel
- S. Kokhia, Mzia
- S. L. Spoon & Son.
- S. Miyake Co.
- S. R. Moore Nursery.
- S. S. Jackson and Co. (firm)
- S. S. Skidelsky & Co.
- S. Scherer & Sons.
- S. Yohe Veile (Firm)
- S., A
- S., A.
- S., D L
- S., F. P.
- S., F. R.
- S., J.
- S., J. C.
- S., J. H.
- S., Jones D
- S.A. Braley & Co.
- S.A. Camp (Firm)
- S.A. Gregg (Firm)
- S.A. Smith (Firm)
- S.B. Elliot (Firm)
- S.B. Pinkston (Firm)
- S.B. Stewart (Firm)
- S.C. Atherton (Firm)
- S.C. Du Rie (Firm)
- S.D. Coleman Nurseries.
- S.D. Elrod & Son.
- S.D. Radmall (Firm)
- S.D. Richardson Nursery.
- S.D. Riegel & Sons.
- S.D. Woodruff & Sons.
- S.E. Holdridge & Sons.
- S.E. Holdridge (Firm)
- S.F. Leonard (Firm)
- S.G. Harris (Firm)
- S.H. Notley (Firm)
- S.H. Notley's Gladiola Garden.
- S.H. Taft (Firm)
- S.H. Warren (Firm)
- S.J. Baldwin (Firm)
- S.J. Cook Nursery.
- S.J. Reuter & Son.
- S.L. Calfee (Firm)
- S.L. Calfee (Firm).
- S.L. Graham (Firm : Rome, Ga.)
- S.L. Lamberd Company.
- S.L. Watkins (Firm)
- S.M. Bayle (Firm)
- S.M. Isbell & Co.
- S.M. Isbell & Co.,
- s.n. (St. Petersburg)
- S.N. Cox & Co.
- S.N. Dickinson & Co.,
- S.P. Strople (Firm)
- S.P. Strople (Firm),
- S.R. Donaldson Co. Nurseries.
- S.R. McKee Nurseries and Rose Gardens.
- S.R.Pennington M.J.Dunn
- S.S. Berry (Firm)
- S.S. Brodbeck (Firm)
- S.S. Pennock-Meehan Co.
- S.S. Skidelsky & Co.
- S.T. Walker (Firm)
- S.V. Pike (Firm)
- S.W. Call (Firm)
- S.W. Flower & Company.
- S.W. Flower Co.
- S.W. Marshall & Son.
- S.W. Peek (Firm : Hartwell, Ga.)
- S.W. Peek (Firm)
- S.W. Pike (Firm)
- S.W. Snyder (Firm)
- S.Y. Haines & Co.
- Sá e Carvalho, Carlos Gomes de
- Sá, Fabrício Bezerra
- Sá, José Antonio de, 1819
- Sá, Marina G. e
- Sa, Ren
- Saab, Victoria Ann
- Saad, Abdel Hakim
- Saad, Flávia Maria de Oliveira Borges.
- Saad, Silvia
- Saadaoui, Ezzeddine
- Saʻādat Yār K̲h̲ān, 1756-1835
- Saag, Andres
- Sääksjärvi, Ilari E.
- Saalas, Uunio, 1882-
- Saalfeld, Keith
- Saalmüller, Max, 1832-1890
- Saam, Christine
- Saandeep, R.
- Saar, Dayle E.
- Saarela, Jeffery M.
- Saarenmaa, Hannu
- Saarinen, Emily V
- Saarinen, Kimmo
- Saaristo, Michael Ilmari, 1938-2008
- Saars, W. F.
- Saavedra Aguilar, Mario
- Saavedra Torrico, Jorge
- Saavedra, Alvaro
- Saavedra, Bárbara
- Saavedra, Daisy
- Saavedra, Diego
- Saavedra, Francisca
- Saavedra, Juank
- Saavedra, Luisa
- Saavedra, Marcelo
- Saavedra, Marcelo
- Saavedra, Maria Fernanda
- Saavedra, Mariana Machado
- Saavedra, Miguel
- Saavedra, Mónica
- Saavedra, Sandra
- Saavedra-Díaz, Lina M.
- Saavedra-Rodríguez, Carlos Arturo
- Saavedra-Santos, Chrystian Jareth
- Saayman, Graham S.
- Saba, Malka
- Saba, Sergio Leonardo
- Sabaa-Srur, Armando Ubirajara Oliveira
- Sabadin, David E.
- Sabadini-Santos, Elisamara
- Sabagh, Leandro Talione
- Sabaj, Mark H.
- Sabaj, Valeria
- Saban, R. (Roger)
- Sabaneyev, L. L.
- Sabat, Pablo
- Sabaté, Sebastián
- Sabatelli, Simone
- Sabath, Laura Elsa
- Sabatier, Armand, 1834-1910
- Sabatier, Daniel
- Sabatier, Yamila
- Sabatinelli, Guido
- Sabatini, M.
- Sabatini, Marina E.
- Sabatini, Vera
- Sabatino, Malena
- Sábato, Eduardo Lima
- Sabattini, Marta S.
- Sabattini, Nora
- Sabbadin, Armando
- Sabbati, Constantino, fl 18th cent-
- Sabbati, Liberato, 1714-1778
- Sabbatini Peverieri, Giuseppino
- Sabbatini, Gloria
- Sabella, Giorgio
- Sabelli, Bruno
- Sabido, M.
- Sabido-Villanueva, Paulina Abigail
- Sabin, Florence Rena, 1871-1953
- Sabin, Osbert
- Sabin, Will.
- Sabine Valley Pecan Nurseries,
- Sabine Valley Pecan Nurseries.
- Sabine, Edward, Sir, 1788-1883
- Sabine, Elizabeth Juliana, 1807-1879
- Sabine, Joseph
- Sabine, Lorenzo, 1803-1877
- Sabine, Neil
- Sabine, Robert.
- Sabino Kikuchi, Izai Alberto Bruno
- Sabino, Ariana P. R.
- Sabino, José
- Sabinson, Lia
- Sablon, Rose
- Sabne, Mahesh
- Sabnis, J. H.
- Sabnis, S. D.
- Sabnis, T. S.
- Sabo, Barbara D.
- Sabo, Beth Ann
- Sabóia-Morais, Simone Maria Teixeira de
- Sabol, Kenneth J.
- Saboori, Alireza
- Saborido-Rey, Fran
- Sabourin, Michael
- Saboya, Pablo
- Sabretache, 1867-
- Sabrosky, Curtis W. (Curtis Williams), 1910-1997
- Sabry, Rachel Costa
- Sabsovich, Katharine, Mrs.
- Sabu Jahas, S. A.
- Sabu, M. (Mamiyil)
- Saburova, Maria
- Sac City Nursery.
- Saccardo, Domenico
- Saccardo, Francesco
- Saccardo, P. A. (Pier Andrea), 1845-1920
- Saccardo, Suzana Anita
- Sacchett, Franciele
- Sacchi, Andrea, 1599?-1661
- Sacchi, Cesare F.
- Sacchi, Gabriela Andrea
- Sacchi, Marco
- Sacchi, Roberto
- Sacco, Federico, 1864-1948
- Sacco, Tyson.
- Saccol, Etiane M.
- Saccol, Suelen Da Silva Alves
- Saccol-Pereira, Adriana
- Saçdanaku, Enerit
- Sachdeva, S. K.
- Sacher, Peter
- Sacherer, J. M.
- Sachet, Marie-Hélène
- Sacheti, Usha
- Sachetto-Martins, Gilberto
- Sachin, James
- Sachkov, Sergey A
- Sachs, David.
- Sachs, Edwin Thomas, 1910
- Sachs, Julius, 1832-1897
- Sachs, Karl, 1853-1878
- Sachs, Marie Magdalena
- Sachs, Philippus Jacobus, von Lewenheimb, 1627-1672
- Sachs, Sven
- Sachs, W.
- Sachse, Carl Traugott, 1815-1863
- Sachse, Johann
- Sachse, Julius F
- Sachser, Norbert
- Sächsische Akademie der Wissenschaften zu Leipzig.