- Jakobsberg, Grady
- Jakobsen, P P
- Jakobsen, Per Ploug
- Jakobsen, Sten L
- Jakobson, Georgij Georgievic
- Jakobson, M E
- Jakobsson, Sven
- Jakosalem, P G C
- Jakosalem, Philip Godfrey
- Jakosky, Jay John, 1895-
- Jakovlev, Jevgeni
- Jakovljević, Miljana
- Jakowatz, Anton
- Jakowlew, B
- Jakowska, Sophie
- Jaksche, H
- Jaksić, F. M. (Fabian Miguel), 1952-
- Jakšić, Predrag.
- Jakubec, Pavel
- Jakubowicz, Andrew
- Jakubowska, Janina
- Jakubowska, Natalia
- Jakubska-Busse, Anna
- Jakubzik, Harry
- Jakus, M A
- Jakusch, Jens
- Jalaeian, Mahdi
- Jalal, Jeewan Singh
- Jalal, Pankaj Kumar Jeewan Singh
- Jalali, M. Amin
- Jalali, S. K.
- Jalalizand, Alireza
- Jalava, J
- Jalava, Jukka
- Jaldín Quintanilla, Rossmary,
- Jaleel, Ziyard
- Jalihal, D R
- Jalil, Nor-Eddine
- Jalili, Adel
- Jalkotzy, Martin G.
- Jalland, G. H.
- Jalles-Filho, Euphly
- Jaloszynski, P
- Jaloszynski, Pawel
- Jałoszynski, Pawel
- Jalsrai, Ariunaa
- Jamaha, Nur Ain Nabilah
- Jamaica. Board of agriculture.
- Jamaica. Botanical Department.
- Jamaica. Department of Public Gardens and Plantations.
- Jamaica. Dept. of Agriculture.
- Jamain, Hippolyte, 1818-
- Jamain, M Alexandre
- Jamal, Qaisar
- Jamaluddin, Jamsari Amirul Firdaus
- Jaman, M Firoj
- Jaman, Razali
- Jamault-Navarro, Catherine
- Jambs, F.
- Jamdar, Kartika
- Jamdar, N
- Jamdar, Nitin
- Jamee, Ahsan Rahman
- Jamel, CE.
- James A. Clausen (Firm)
- James A. Heydt (Firm)
- James A. Root Nurseries.
- James A. Rowan Nurseries.
- James Allen.
- James B. Wild & Bros.
- James Ballantyne and Co.
- James Bloodgood & Co.
- James Brodie & Sons.
- James Burn & Company,
- James Carter & Co.
- James Donovan (Firm)
- James Draper (Firm)
- James E, Zimmerman
- James E. Butts, Jr. & Co. (Firm)
- James Edgerton (Firm)
- James Edward Friend,
- James F. Failey (Firm),
- James F. Le Clare (Firm)
- James F. Mcguire (Firm),
- James Forbes Barclay (Firm)
- James Forbes Barclay (Firm),
- James G. Murray (Firm)
- James Galen (Firm)
- James H. Bissland & Son.
- James H. Bowditch (Firm)
- James Hunter (Firm)
- James Hutchinson (Firm)
- James Hutchison (Firm)
- James I. George & son.
- James I. George (Firm)
- James J. McManmon (Firm)
- James J.H. Gregory (Firm)
- James Jeffrey & Son.
- James Jerome Hill Reference Library,
- James King (Firm)
- James King Nursery.
- James King Seed Co.
- James Krewson & Sons.
- James L, Sparks
- James L. Haven & Co.
- James M. Lamb & Sons.
- James M. Lamb (Firm)
- James M. P.
- James M. Thorburn & Company.
- James MacGregor (Firm)
- James Manufacturing Co.
- James McGregor (Firm)
- James N. Stearns (Firm)
- James Nursery Co.
- James O. Toland (Firm)
- James Platts (Firm)
- James R. Gillette (Firm),
- James R. Osgood and Company,
- James Rare Plant Nursery,
- James Ridgway and Sons,
- James Riley & Son.
- James River Garden Club, Richmond.
- James Smalley & Co.
- James Smalley & Company.
- James T. Bogue (Firm)
- James Truitt & Sons.
- James Veitch & Sons.
- James Vick's Sons (Rochester, N.Y.)
- James W. Bain (Firm)
- James W. Brittingham (Firm),
- James W. Owen Nursery.
- James W. Robinson (Firm)
- James W. Robinson Nurseries.
- James W. Spring, Jr. (Firm),
- James Water (Firm)
- James Waters (Firm)
- James Wheeler & Son.
- James Wiltse (Firm)
- James, A H
- James, Albert V G
- James, Alexander N.
- James, Alice H.
- James, Allan
- James, Anna
- James, Arlington
- James, Arthur Curtiss 1867-1941
- James, B. T.
- James, C
- James, C W
- James, C. C. (Charles Canniff), 1863-1916
- James, Cameron
- James, Carole S Hickman Matthew J
- James, Charles W
- James, D B
- James, D G
- James, D. M.
- James, D.J
- James, David
- James, David G
- James, David J
- James, Davis L.
- James, Douglas
- James, Douglas A
- James, E
- James, E. W. (Edwin Warley), 1877-
- James, Ed.
- James, Edmund J
- James, Edwin, 1797-1861
- James, Elizabeth A
- James, F. L. (Frank Linsly), 1851-1890
- James, Florence G
- James, Frances C
- James, Francis G.
- James, G J
- James, Gary
- James, George A.
- James, George Albert, 1920-
- James, George B., Jr.
- James, George Wharton, 1858-1923
- James, H A
- James, H F
- James, H W
- James, Harry Berkeley, 1846-1892
- James, Helen F
- James, Hugo A
- James, Isabella B
- James, Isabella Batchelder, 1819-1901
- James, J F
- James, Janice D.
- James, Jefferson Gilbert, 1829-1910
- James, Jeremy
- James, Jinesh
- James, John Angell, 1785-1859
- James, John, 1746
- James, Joseph F
- James, Joseph F.
- James, Joseph F. (Joseph Francis), 1857-1897
- James, Kimberley
- James, Lebron
- James, Lee M. (Lee Morton), 1916-
- James, Liz
- James, M. Lynne.
- James, Maurice T (Maurice Theodore), 1905-1982
- James, Michael A.
- James, Michael C.
- James, Mj
- James, Noel P
- James, P C
- James, P S B R
- James, P.W. (Peter Wilfrid) 1930-2014
- James, Paul C
- James, Paul E., 1912-
- James, Paul Moon
- James, Pauline
- James, Pauline
- James, Peter
- James, Peter J.
- James, R. (Robert), 1703?-1776
- James, R. D.
- James, R. F.
- James, R. H.
- James, Rhonda
- James, Robert
- James, Robert Kent,
- James, Robert L.
- James, Ross D
- James, Ross, 1943-
- James, Russell E
- James, S H
- James, S W
- James, S. P. (Sydney Price), 1870-1946
- James, Sam
- James, Samuel
- James, Samuel W
- James, Samuel W.
- James, Shelley A.
- James, Steven R.
- James, T A
- James, Taylor
- James, Teresa
- James, Thomas Potts, 1803-1882
- James, Thomas, 1809-1863
- James, Timothy Y
- James, Timothy Yong
- James, Trevor
- James, U. P. 1811-1889
- James, W.
- James, W. Knight.
- James, W. P. (Walter Pavy)
- James, W. Powell James, William Powell