- Spurr, Stephen H
- Spurrell, J A
- Spurrier, Carol S.,
- Spurrier, Carol,
- Spurrier, Margo Frost
- Spurway, H
- Spurway, Helen
- Spy Hill Conservatories.
- Spyck, Johannes van der
- Squarcia, Silvia M
- Squarcia, SM.
- Square Deal Seed Co.
- Squarey, Charles.
- Squelch, P
- Squeo, F
- Squeo, F A
- Squeo, Francisco A
- Squeo, Francisco A
- Squeo, Francisco A.
- Squibb, S D
- Squier, E. G. (Ephraim George), 1821-1888
- Squier, George L.
- Squillace, A. E.
- Squillace, A. E. (Anthony Eugene), 1915-
- Squillace, Anthony E., 1915-
- Squinabol, Senofonte, 1861-1941
- Squire, Clayton R
- Squire, Gordon J.,
- Squire, James L., Jr.
- Squire, Joseph.
- Squire, Peter Wyatt, Sir.
- Squire, Richard D
- Squires, Donald F.
- Squires, Harry L.
- Squires, J R
- Squires, John R
- Squires, L E
- Squires, Lorin E
- Squires, R L
- Squires, Richard L.
- Squires, Rl
- Squires, Susan K.
- Squires, W. Austin
- Squires-Parsons, Deborah
- Squirrell, W. J. (William John), 1936
- Squyer, H
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- Srain, Benjamin
- Srain, Benjamín
- Sramkó, Gábor
- Srarpe, R Bowdler
- Sraver, B E
- Srba, Miroslav
- Srbek-Araujo, Ana Carolina
- Srdic, Z
- Srėbalienė, Greta
- Sreedevi, Kolla
- Sreejith, Edakkattellam
- Sreekumar, P V
- Sreemadhavan, C P
- Sreenivasan, A
- Sreenivasan, K V
- Sreenivasan, M A
- Sreenivasa-Reddy, R P
- Sreenivasula Reddy, P
- Sretarugsa, Prapee
- Sridhar, S
- Sridhara, S
- Sridharan, U
- Srifah, Pattana
- Sri-Indrasutdhi, Veera
- Srijaya, T C
- Srikachar, Sunyanee
- Srikanth, Ns
- Srikulnath, Kornsorn
- Srimathi, R A
- Sri-Ngernyuang, Kriangsak
- Srinidi, S
- Srinivas, G
- Srinivas, K V
- Srinivas, V
- Srinivasa Raghavaiyangar, S. (Seshayangar), 1849-1903
- Srinivasa Rao, H
- Srinivasa Rao, K
- Srinivasa, T S
- Srinivasan, G
- Srinivasan, K S
- Srinivasan, M
- Srinivasan, Mandyam V
- Srinivasan, R
- Srinivasan, S R
- Srinivasan, Umesh
- Srinivasan, V V
- Srinivasarao, H
- Srinivasulu, C
- Srinui, Khwanruan
- Sripathi, K
- Sriranan, Patipan
- Srisonchai, Ruttapon
- Srisuka, Wichai
- Srisuko, Montien
- Srivastava, A
- Srivastava, A K
- Srivastava, A. K. (Botanist)
- Srivastava, Amit K
- Srivastava, Anil K
- Srivastava, Archana
- Srivastava, B B L
- Srivastava, B K
- Srivastava, B P
- Srivastava, C B
- Srivastava, G K
- Srivastava, G N
- Srivastava, G S
- Srivastava, Gi Ki
- Srivastava, Gopal Krishna
- Srivastava, H. C., 1943-
- Srivastava, J. P.
- Srivastava, J. P. (Jai Prakash)
- Srivastava, K P
- Srivastava, Kiran
- Srivastava, Lalit M
- Srivastava, M
- Srivastava, Mrittunjai
- Srivastava, P
- Srivastava, P D
- Srivastava, P P
- Srivastava, Prateek
- Srivastava, Pratibha
- Srivastava, Pushpa
- Srivastava, R C
- Srivastava, Rahul
- Srivastava, Ruchi
- Srivastava, S C
- Srivastava, S K
- Srivastava, S M
- Srivastava, Sanjay K
- Srivastava, Surendra N
- Srivastava, Suresh C
- Srivastava, Tanushree
- Srivastava, Y N
- Sriwichai, Patchara
- Srnka, Anton
- Srôck, Matthias
- Sroka, Pavel
- Srostlik, Zuzana
- Sroyraya, Morakot
- Sruoga, V
- Sruoga, Virginijus
- Srur, Ana M
- Srygley, Robert B
- ssa L., Paula A.
- Sseliwanoff, A
- Ssemmanda, Richard
- Ssymank, Axel
- St George, Ian
- St Laurent, Ryan
- St Onge, Benoit
- St, Clair L L
- St. Andre, Christopher J.
- St. Aubin, David J. 1952-
- St. Aubyn Rogers, K
- St. Barbe, Charles
- St. Barbe, Henry Lewis
- St. Bartholomew's Hospital (London, England)
- St. Bartholomew's Hospital Museum (London)
- St. Catharines Nursery.
- St. Clair Gardens,
- St. Clair Rare Bulb Gardens.
- St. Clair, Colleen Cassady
- St. Clair, Larry L.
- St. Clair, R
- St. Clair, Rosalind M
- St. Claire, Larry
- St. Croix, O. H. de.
- St. Gallische Naturwissenschaftliche Gesellschaft (Switzerland)
- St. George, Daniel.
- St. George, H. Quetton
- St. George, R. A. 1894-
- St. Hilaire, Kimberly
- St. Hilaire, Lisa
- St. Jacques, Brianne
- St. Jean, Joseph, Jr., 1923-2018
- St. John & Bull Seed Company.
- St. John Braddell, Roland
- St. John, Bayle, 1822-1859
- St. John, C E
- St. John, Charles Edward, 1857-1935
- St. John, Charles, 1809-1856
- St. John, Claude.
- St. John, Cynthia Morgan, 1852-1919
- St. John, E. Quintard, 1876-
- St. John, Harold, 1892-1991
- St. John, Henry Craven, 1837-1909
- St. John, Horace Stebbing Roscoe, Mrs.
- St. John, Horace, Mrs.
- St. John, J. Seymour.
- St. John, John Seymour.
- St. John, Larry.
- St. John, Lieut‐col Sir O B
- St. John, O B C
- St. John, O. H. (Orestes Hawley)
- St. John, P R H
- St. John, Percy Bolingbroke, 1821-1889
- St. John, Spenser Sir, (Buckingham), 1825-
- St. Joseph Nursery.
- St. Laurent, Charles Manfred.
- St. Lawrence Parks Commission (Ont.)
- St. Leonards Museum.
- St. Loibel, I.,
- St. Louis School of Social Economy. Dept. of Research.
- St. Louis Seed Co.
- St. Louis Seed Company.
- St. Louis, Martin
- St. Louis, Vincent L
- St. Mars, F., 1883-
- St. Peter, R L
- St. Peters, D
- St. Peters, Michelle A
- St. Pierre, Richard G.
- St. Quentin, D
- St. Quentin, Douglas
- St. Regis Nursery.
- St. Romain, Christ
- St. Vrain Valley Nursery.
- Staab, Michael
- Staatliches Museum für Naturkunde Görlitz.
- Staatliches Museum für Naturkunde in Stuttgart
- Staatliches Museum für Naturkunde in Stuttgart.
- Staatliches Museum für Naturkunde.
- Staats, Janice.
- Stabb, Mark
- Stabell, Chr.
- Stabelli, Rodrigo Guerino
- Stabile, Giuseppe, 1826-1869
- Stabile, Guiseppe, 1826-1869
- Stabins, H C
- Stabler Nursery.
- Stabler, E. (Edward), 1794-1883
- Stabler, R H
- Stabler, R M
- Stabler, Robert M
- Stabler's Rosegarden
- Stables, Gordon, 1840-1910
- Stables, Mark
- Stacciarini-Seraphin, Eliane
- Stace, Arthur J
- Stace, C A
- Stace, Clive A
- Stace, Helen