| Name | Born | Died | Country | Abbrev. | Reference | 
| Henry Robert Nicollon Des Abbayes | 1898 | 1974 |   France | Abbayes |  | 
| Ernst Victor Abbott | 1899 | 1980 |   United States | E.V.Abbott |  | 
| Aleksandra Aleksandrovna Ablakatova | 1907 | 1988 |   Russia | Ablak. |  | 
| Ivan Nikolayevich Abramov | 1884 | 1953 |   Russia | Abramov |  | 
| Erik Acharius | 1757 | 1819 |   Sweden | Ach. |  | 
| Michel Adanson | 1727 | 1806 |   France | Adans. |  | 
| Rudolph Ferdinand Theodor Aderhold | 1865 | 1907 |   Germany | Aderh. |  | 
| Adam Afzelius | 1750 | 1837 |   Sweden | Afzel. |  | 
| Carl Adolph Agardh | 1785 | 1859 |   Sweden | C.Agardh |  | 
| Jacob Georg Agardh | 1813 | 1901 |   Sweden | J.Agardh |  | 
| Geoffrey Clough Ainsworth | 1905 | 1998 |   United Kingdom | Ainsw. |  | 
| Libero Ajello | 1916 | 2004 |   United States | Ajello |  | 
| Henry Carl Aldrich | 1941 | 2005 |   United States |  | 
| Carlo Luciano Alessio | 1919 | 2006 |   Italy | Alessio |  | 
| Constantine John Alexopolous | 1907 | 1986 |   United States | Alexop. |  | 
| Ruth F. Allen | 1879 | 1963 |   United States |  | 
| Lawrence Marion Ames | 1900 | 1966 |   United States | L.M.Ames |  | 
| David Arora | 1953 |  |   United States | D.Arora |  | 
| Joseph Charles Arthur | 1850 | 1942 |   United States | Arthur |  | 
| George Francis Atkinson | 1854 | 1918 |   United States | G.F.Atk. | 
 
 | 
| Churchill Babington | 1821 | 1889 |   United Kingdom | C.Bab. |  | 
| Charles David Badham | 1805 | 1857 |   United Kingdom | Badham |  | 
| Gladys Elizabeth Baker | 1908 | 2007 |   United States | G.E.Baker |  | 
| Giuseppe Gabriel Balsamo-Crivelli | 1800 | 1874 |   Italy | Bals.-Criv. |  | 
| Robert Joseph Bandoni | 1926 | 2009 |   Canada | Bandoni |  | 
| Howard James Banker | 1866 | 1940 |   United States | Banker |  | 
| Mary Elizabeth Banning | 1832 | 1901 |   United States | Banning |  | 
| Alma Joslyn Whiffen-Barksdale | 1916 | 1981 |   United States | Whiffen |  | 
| Heinrich Anton de Bary | 1831 | 1888 |   Germany | de Bary |  | 
| Lekh Raj Batra | 1929 | 1999 |   India | L.R.Batra |  | 
| August Johann Georg Karl Batsch | 1761 | 1802 |   Germany | Batsch |  | 
| Giovanni Antonio Battarra | 1714 | 1789 |   Italy | Batarra |  | 
| Gaspard Bauhin | 1560 | 1624 |    Switzerland | C.Bauhin |  | 
| Johann Bauhin | 1541 | 1613 |    Switzerland | J.Bauhin |  | 
| Dow Vauter Baxter | 1898 | 1965 |   United States | D.V.Baxter |  | 
| Henry Curtis Beardslee | 1865 | 1948 |   United States | Beardslee |  | 
| Günther Beck von Mannagetta und Lerchenau | 1856 | 1931 |   Austria | Beck |  | 
| Maurice Beeli | 1879 | 1957 |   Belgium | Beeli |  | 
| Everett Smith Beneke | 1918 | 2010 |   United States | Beneke |  | 
| Chester Ray Benjamin | 1923 | 2002 |   United States | C.R.Benj. |  | 
| Miles Joseph Berkeley | 1803 | 1889 |   United Kingdom | Berk. |  | 
| Christine Marie Berkhout | 1893 | 1932 |   Netherlands | Berkh. |  | 
| Charles Edwin Bessey | 1845 | 1915 |   United States | Bessey |  | 
| Ernst Athearn Bessey | 1877 | 1957 |   United States | E.A.Bessey |  | 
| Agathe L. van Beverwijk | 1907 | 1963 |   Netherlands | Beverw. |  | 
| Howard E. Bigelow | 1923 | 1987 |   United States | H.E.Bigelow |  | 
| Margaret Elizabeth Barr-Bigelow | 1923 | 2008 |   United States | M.E.Barr |  | 
| Chapman Hunter Binford | 1900 | 1990 |   United States | Binford |  | 
| Guy Richard Bisby | 1889 | 1958 |   United States | Bisby |  | 
| Meredith Blackwell |  |  |   United States | Blackwell |  | 
| Albert Francis Blakeslee | 1874 | 1954 |   United States | Blakeslee |  | 
| Carl Ludwig Blume | 1789 | 1862 |   Germany | Blume |  | 
| Mary Cecilia Bodman | 1905 | 1982 |   United States | Bodman |  | 
| James Bolton | 1758 | 1799 |   United Kingdom | Bolton |  | 
| Marcel Bon | 1925 |  |   France | Bon |  | 
| Lee Bonar | 1891 | 1977 |   United States | Bonar |  | 
| Hermann Friedrich Bonorden | 1801 | 1884 |   Germany | Bonord. |  | 
| Aimé Jacques Alexandre Bonpland | 1773 | 1858 |   France | Bonpl. |  | 
| Jean Louis Émile Boudier | 1828 | 1920 |   France | Boud. |  | 
| Hubert Bourdot | 1861 | 1937 |   France | Bourdot |  | 
| Julius Oscar Brefeld | 1839 | 1925 |   Germany | Bref. |  | 
| Giacomo Bresadola | 1847 | 1929 |   Italy | Bres. |  | 
| Nathaniel Lord Britton | 1859 | 1934 |   United States | Britton |  | 
| Max Britzelmayr | 1839 | 1909 |   Germany | Britzelm. |  | 
| Irwin M. Brodo | 1935 |  |   Canada | Brodo |  | 
| Frederick Thom Brooks | 1882 | 1952 |   United Kingdom | F.T.Brooks |  | 
| Travis E. Brooks | 1917 | 1976 |   United States | T.E.Brooks |  | 
| Christopher Edmund Broome | 1812 | 1886 |   United Kingdom | Broome |  | 
| Thomas D. Bruns |  |  |   United States | T.D.Bruns |  | 
| Arthur Henry Reginald Buller | 1874 | 1944 |   Canada | Buller |  | 
| Jean Baptiste François Pierre Bulliard | 1742 | 1793 |   France | Bull. |  | 
| Gertrude Simmons Burlingham | 1872 | 1952 |   United States | Burl. |  | 
| John Harrison Burnett | 1922 | 2007 |   United Kingdom | J.H.Burnett |  | 
| Thomas Jonathan Burrill | 1839 | 1916 |   United States | Burrill |  | 
| Edward Angus Burt | 1859 | 1939 |   United States | Burt |  | 
| Edwin John Butler | 1874 | 1943 |   United Kingdom | E.J.Butler |  | 
| A. P. de Candolle | 1778 | 1841 |    Switzerland | DC. |  | 
| James Cedric Carter | 1905 | 1981 |   United States | J.C.Carter |  | 
| George Washington Carver | 1864 | 1943 |   United States | Carver |  | 
| Edith Katherine Cash | 1890 | 1992 |   United States | E.K.Cash |  | 
| Karel Cejp | 1900 | 1979 |   Czech Republic | Cejp |  | 
| Ladislav František Čelakovský | 1863 | 1916 |   Czech Republic | L.F.Čelák. |  | 
| Ignacio Chapela |  |  |   United States | Chapela |  | 
| Carlos E. Chardon | 1897 | 1965 |   Puerto Rico |  | 
| Vera Katherine Charles | 1877 | 1954 |   United States | Charles |  | 
| Margaret Brooks Church | 1889 | 1976 |   United States | Church |  | 
| Zdeněk Černohorský | 1910 | 2001 |   Czech Republic |  | 
| Stanisław Chełchowski | 1866 | 1907 |   Poland |  |  | 
| Raffaele Ciferri | 1897 | 1964 |   Italy | Cif. |  | 
| John Burton Cleland | 1878 | 1971 |   Australia | Cleland |  | 
| Frederick Edward Clements | 1874 | 1945 |   United States | Clem. |  | 
| George Perkins Clinton | 1867 | 1937 |   United States | G.P.Clinton |  | 
| Vincent W. Cochrane | 1916 | 1987 |   United States |  | 
| William Chambers Coker | 1872 | 1953 |   United States | Coker |  | 
| O'Neil Ray Collins | 1931 | 1989 |   United States |  | 
| Ibra Lockwood Conners | 1894 | 1989 |   Canada | Conners |  | 
| Melville Thurston Cook | 1869 | 1952 |   United States | M.T.Cook |  | 
| Orator Fuller Cook | 1867 | 1949 |   United States | O.F.Cook |  | 
| Mordecai Cubitt Cooke | 1825 | 1914 |   United Kingdom | Cooke |  | 
| William Bridge Cooke | 1908 | 1991 |   United States | W.B.Cooke |  | 
| August Carl Joseph Corda | 1809 | 1849 |   Czech Republic | Corda |  | 
| Edred John Henry Corner | 1906 | 1996 |   United Kingdom | Corner |  | 
| Marie Maxime Cornu | 1843 | 1901 |   France | Cornu |  | 
| Carl Franz Joseph Erich Correns | 1864 | 1933 |   Germany | Correns |  | 
| Julien Noël Costantin | 1857 | 1936 |   France | Costantin |  | 
| A.D. Cotton | 1879 | 1962 |   United Kingdom | Cotton |  | 
| Charles Crossland | 1844 | 1916 |   United Kingdom | Crossl. |  | 
| George Baker Cummins | 1904 | 2007 |   United States | Cummins |  | 
| Gordon Herriot Cunningham | 1892 | 1962 |   New Zealand | G.Cunn. |  | 
| Frederick Currey | 1819 | 1881 |   United Kingdom | Curr. |  | 
| Kathleen Maisey Curtis | 1892 | 1994 |   New Zealand | K.M.Curtis |  | 
| William Curtis | 1746 | 1799 |   United Kingdom | Curtis |  | 
| Victor Macomber Cutter | 1917 | 1962 |   United States | Cutter |  | 
| Grant Dooks Darker | 1898 | 1979 |   United States | Darker |  | 
| John Dearness | 1852 | 1954 |   Canada | Dearn. |  | 
| Frederick Claude Deighton | 1903 | 1992 |   United Kingdom | Deighton |  | 
| Edouard Georges Delacroix | 1858 | 1907 |   France | Delacr. |  | 
| R.W.G. Dennis | 1910 | 2003 |   United Kingdom | Dennis |  | 
| Giuseppe De Notaris | 1805 | 1877 |   Italy | De Not. |  | 
| William Clark Denison | 1928 | 2005 |   United States | Denison |  | 
| Aurel Dermek | 1929 | 1989 |   Slovakia | Dermek |  | 
| René Louiche Desfontaines | 1750 | 1833 |   France | Desf. |  | 
| Dennis E. Desjardin | 1950 |  |   United States | Desjardin |  | 
| John Baptiste Henri Joseph Desmazières | 1786 | 1862 |   France | Desm. |  | 
| Nicaise Auguste Desvaux | 1784 | 1856 |   France | Desv. |  | 
| James Dickson | 1738 | 1822 |   Scotland | Dicks. |  | 
| James G. Dickson | 1891 | 1962 |   United States | J.G.Dicks. |  | 
| William Webster Diehl | 1891 | 1978 |   United States | Diehl |  | 
| Johann Jacob Dillenius | 1687 | 1747 |   Germany | Dill. |  | 
| Joan Dingley | 1916 | 2008 |   New Zealand | Dingley |  | 
| Bernard Ogilvie Dodge | 1872 | 1960 |   United States | B.O.Dodge |  | 
| Carroll William Dodge | 1895 | 1988 |   United States | C.W.Dodge |  | 
| Ethel Mary Doidge | 1887 | 1965 |   South Africa | Doidge |  | 
| Tadeusz Dominik | 1909 | 1980 |   Poland | Dominik |  | 
| Marinus Anton Donk | 1908 | 1972 |   Netherlands | Donk |  | 
| Charles Drechsler | 1892 | 1986 |   United States | Drechsler |  | 
| Edouard Drouhet | 1919 | 2000 |   France | Drouhet |  | 
| Benjamin Minge Duggar | 1872 | 1956 |   United States | Duggar |  | 
| Barthélemy Charles Joseph Dumortier | 1797 | 1878 |   Belgium | Dumort. |  | 
| Catherine Gross Duncan | 1908 | 1968 |   United States |  | 
| Elias Judah Durand | 1870 | 1922 |   United States | E.J.Durand |  | 
| Franklin Sumner Earle | 1856 | 1929 |   United States | Earle |  | 
| Finn-Egil Eckblad | 1923 | 2000 |   Norway | Eckblad |  | 
| Claude Wilbur Edgerton | 1880 | 1965 |   United States | Edgerton |  | 
| Christian Gottfried Ehrenberg | 1795 | 1876 |   Germany | Ehrenb. |  | 
| Jakob Friedrich Ehrhart | 1742 | 1795 |   Germany | Ehrh. |  | 
| Mary Elizabeth Elliott | 1923 | 1976 |   Canada | M.E.Elliott |  | 
| Job Bicknell Ellis | 1829 | 1905 |   United States | Ellis |  | 
| Ralph Emerson | 1912 | 1979 |   United States | R.Emers. |  | 
| Chester Wilson Emmons | 1900 | 1985 |   United States | C.W.Emmons |  | 
| Stephan Ladislaus Endlicher | 1804 | 1849 |   Austria | Endl. |  | 
| George Engelmann | 1809 | 1884 |   United States | Engelm. |  | 
| Constantin von Ettingshausen | 1826 | 1897 |   Austria | Ettingsh. |  | 
| Benjamin Matlack Everhart | 1818 | 1904 |   United States | Everh. | 
| William Leigh Williamson Eyre | 1841 | 1914 |   United Kingdom | Eyre |  | 
| Charles E. Fairman | 1856 | 1934 |   United States | Fairm. |  | 
| Richard Falck | 1868 | 1955 |   Austria | Falck |  | 
| William Gilson Farlow | 1844 | 1919 |   United States | Farl. |  | 
| Olga Fassatiová | 1924 |  |   Czech Republic | Fassat. |  | 
| Joseph Horace Faull | 1876 | 1961 |   Canada | Faull |  | 
| Victor Fayod | 1860 | 1900 |    Switzerland | Fayod |  | 
| Dorothy Irene Fennell | 1916 | 1977 |   United States | Fennell |  | 
| Charles Leonard Fergus | 1917 | 1986 |   United States | Fergus |  | 
| William Grady Fields | 1933 | 1975 |   United States | Fields |  | 
| John Fincham | 1926 | 2005 |   United Kingdom |  | 
| Bruce Fink | 1861 | 1927 |   United States | Fink |  | 
| Eduard Fischer | 1861 | 1939 |   United States | E.Fisch. |  | 
| Harry Morton Fitzpatrick | 1886 | 1949 |   United States | Fitzp. |  | 
| Julius von Flotow | 1788 | 1856 |   Germany | Flot. |  | 
| Ivan Focht | 1927 | 1992 |   Croatia |  |  | 
| Georg Forster | 1754 | 1794 |   Germany | G.Forst. |  | 
| Lorraine Friedman |  | 2001 |   United States | Friedman |  | 
| Elias Magnus Fries | 1794 | 1878 |   Sweden | Fr. |  | 
| Theodor Magnus Fries | 1832 | 1913 |   Sweden | Th.Fr. |  | 
| Charles Christopher Frost | 1805 | 1880 |   United States | Frost |  | 
| Bruce A. Fuhrer |  |  |   Australia | Fuhrer |  | 
| Joseph Gaertner | 1732 | 1791 |   Germany | Gaertn. |  | 
| Edward Garber | 1918 | 2004 |   United States |  | 
| Guglielmo Gasparrini | 1803 | 1866 |   Italy | Gasp. |  | 
| Charles Gaudichaud-Beaupré | 1789 | 1854 |   France | Gaudich. |  | 
| Ernst Albert Gäumann | 1893 | 1963 |    Switzerland | Gäum. |  | 
| Edward Garber | 1918 | 2004 |   United States |  | 
| Paul Emil Elliot Gelting | 1905 | 1964 |   Denmark | Gelting |  | 
| Léon Gaston Genevier | 1830 | 1880 |   France | Genev. |  | 
| William Ruggles Gerard | 1841 | 1914 |   United States | W.R.Gerard |  | 
| James Wessell Gerdemann | 1921 | 2008 |   United States | Gerd. |  | 
| Ewald Gerhardt |  |  |   Germany | Ew.Gerhardt |  | 
| Edward Martinius Gilbert | 1875 | 1956 |   United States | E.M.Gilbert |  | 
| Helen Margaret Gilkey | 1886 | 1972 |   United States | Gilkey |  | 
| Joseph Charles Gilman | 1890 | 1966 |   United States | J.C.Gilman |  | 
| Johann Friedrich Gmelin | 1748 | 1804 |   Germany | J.F.Gmel. |  | 
| Nina Sergeevna Golubkova | 1932 | 2009 |   Ukraine | N.S.Golubk. |  | 
| William Laurence Gordon | 1901 | 1963 |   Canada | W.L.Gordon |  | 
| David Gottlieb | 1911 | 1982 |   United States |  | 
| Samuel Frederick Gray | 1766 | 1828 |   United Kingdom | Gray |  | 
| Henry Campbell Greene | 1904 | 1967 |   United States | H.C.Greene |  | 
| James Walton Groves | 1906 | 1970 |   Canada | J.W.Groves |  | 
| David Gruby | 1810 | 1898 |   Hungary | Gruby |  | 
| Gro Gulden | 1939 |  |   Norway | Gulden |  | 
| Johan Ernst Gunnerus | 1718 | 1773 |   Norway | Gunnerus |  | 
| Gastón Guzmán | 1932 |  |   Mexico | Guzman |  | 
| Helen Gwynne-Vaughan | 1879 | 1967 |   United States | Gwynne-Vaughan |  | 
| Byron David Halsted | 1852 | 1918 |   United States | Halst. |  | 
| Emil Christian Hansen | 1842 | 1909 |   Denmark | E.C.Hansen |  | 
| Kanesuke Hara | 1885 | 1962 |   Japan | Hara |  | 
| H. W. Harkness | 1821 | 1901 |   United States | Harkn. |  | 
| Robert Almer Harper | 1862 | 1946 |   United States |  | 
| Kenneth Archibald Harrison | 1901 | 1991 |   Canada | K.A.Harrison |  | 
| David Leslie Hawksworth | 1946 |  |   United Kingdom | D.Hawksw. |  | 
| Elizabeth Lee Hazen | 1885 | 1975 |   United States |  | 
| Frigyes Ákos Hazslinszky | 1818 | 1896 |   Hungary | Hazsl. |  | 
| Roger Heim | 1900 | 1979 |   France | R.Heim |  | 
| Paul Heinemann | 1916 | 1996 |   Belgium | Heinem. |  | 
| Paul Christoph Hennings | 1841 | 1908 |   Germany | Henn. |  | 
| Aino Marjatta Henssen | 1925 | 2011 |   Finland | Henssen |  | 
| Josef Herink |  |  |   Czech Republic | Herink |  | 
| Lexemuel Ray Hesler | 1888 | 1977 |   United States | Hesler |  | 
| David S. Hibbett |  |  |   United States | Hibbett |  | 
| Naoharu Hiratsuka | 1873 | 1946 |   Japan | Hirats. |  | 
| Bronislav Hlůza | 1929 |  |   Czech Republic |  | 
| Hermann Hoffmann | 1819 | 1891 |   Germany | H.Hoffm. |  | 
| Franz Xaver Rudolf von Höhnel | 1852 | 1920 |   Austria | Höhn. |  | 
| Johan Theodor Holmskjold | 1731 | 1793 |   Denmark | Holmsk. |  | 
| Edward Willet Dorland Holway | 1853 | 1923 |   United States | Holw. |  | 
| Natsurang Homchantara | 1957 | 2006 |   Thailand |  |  | 
| Edwin Earle Honey | 1891 | 1956 |   United States | Honey |  | 
| Tsuguo Hongo | 1923 | 2007 |   Japan | Hongo |  | 
| Joseph Dalton Hooker | 1817 | 1911 |   United Kingdom | Hook.f. |  | 
| John W. Hotson | 1870 | 1957 |   United States | Hotson |  | 
| Frank Leslie Howard | 1903 | 1997 |   United States |  | 
| Zdeněk Hubálek |  |  |   Czech Republic | Hubálek |  | 
| Anna Maria Hussey | ca. 1820 | 1877 |   United Kingdom | Hussey |  | 
| Emil J. Imbach | 1897 | 1970 |   Germany | Imbach |  | 
| Henry Alexander Carmichael Jackson | 1877 | 1961 |   Canada | H.A.C.Jacks. |  | 
| Nikolaus Joseph von Jacquin | 1727 | 1817 |   Netherlands | Jacq. |  | 
| Anna Eliza Jenkins | 1886 | 1973 |   United States | Jenkins |  | 
| Jon Duane Jensen | 1953 | 1986 |   United States | J.D.Jensen |  | 
| Abraham Z. Joffe | 1909 | 2000 |   Israel | Joffe |  | 
| George Thomas Johnson | 1916 | 1981 |   United States |  | 
| Fred Reuel Jones | 1884 | 1956 |   United States | F.R.Jones |  | 
| Ivar Jørstad | 1887 | 1967 |  | Jørst. |  | 
| Károly Kalchbrenner | 1807 | 1886 |   Hungary | Kalchbr. |  | 
| Julius Kane | 1925 | 2001 |   Canada | J.Kane |  | 
| Gustav Karl Wilhelm Hermann Karsten | 1817 | 1908 |   Germany | H.Karst. |  | 
| Petter Adolf Karsten | 1834 | 1917 |   Finland | P.Karst |  | 
| Calvin Henry Kauffman | 1869 | 1931 |   United States | Kauffman |  | 
| William Ashbrook Kellerman | 1850 | 1908 |   United States | Kellerm. |  | 
| Bryce Kendrick | 1933 |  |   United Kingdom | W.B.Kendr. |  | 
| Frank Dunn Kern | 1883 | 1973 |   United States | F.Kern |  | 
| František Kotlaba | 1927 |  |   Czech Republic | Kotl. |  | 
| Hanns Kreisel | 1931 |  |   Germany | Kreisel |  | 
| Louis Charles Christopher Krieger | 1873 | 1940 |   United States | L.Krieg. |  | 
| Julius Vincenz von Krombholz | 1782 | 1843 |   Czech Republic | Krombh. |  | 
| Julius Gotthelf Kühn | 1825 | 1910 |   Germany | J.G.Kühn |  | 
| Robert Kühner | 1903 | 1996 |   Germany | Kühner |  | 
| Paul Kummer | 1834 | 1912 |   Germany | P.Kumm. |  | 
| Otto Kuntze | 1843 | 1907 |   Germany | Kuntze |  | 
| Syo Kurokawa | 1926 | 2010 |   Japan | Kurok. |  | 
| Jakob Emanuel Lange | 1864 | 1941 |   Denmark | J.E.Lange |  | 
| Knud Morten Lange | 1919 | 2003 |   Denmark | M.Lange |  | 
| Michael J. Larsen | 1938 | 2000 |   United States | M.J.Larsen |  | 
| Jacques Désiré Leandri | 1903 | 1982 |   France | Leandri |  | 
| George Aleck Ledingham | 1903 | 1962 |   Canada | Ledingham |  | 
| Paul Arenz Lemke | 1937 | 1995 |   United States | P.A.Lemke |  | 
| Charles de l'Écluse | 1526 | 1609 |   Belgium | Clus. |  | 
| Jens Lind | 1874 | 1939 |   Denmark | Lind |  | 
| Gustav Lindau | 1866 | 1923 |   Germany | Lindau |  | 
| David Hunt Linder | 1899 | 1946 |   United States | Linder |  | 
| Johann Heinrich Friedrich Link | 1767 | 1850 |   Germany | Link |  | 
| Carl Linnaeus | 1707 | 1778 |   Sweden | L. |  | 
| William Henry Long | 1867 | 1947 |   United States | Long |  | 
| Josiah Lincoln Lowe | 1905 | 1997 |   United States | J.Lowe |  | 
| Rudolph Arnold Maas Geesteranus | 1911 | 2003 |   Netherlands | Maas Geest. |  | 
| Edwin Butterworth Mains | 1890 | 1968 |   United States | Mains |  | 
| Charles McIlvaine | 1840 | 1909 |   United States | McIlv. |  | 
| Thomas Huston Macbride | 1848 | 1934 |   United States | T.Macbr. |  | 
| René Maire | 1878 | 1949 |   France | Maire |  | 
| George Willard Martin | 1886 | 1971 |   United States | G.W.Martin |  | 
| Ludmila Marvanov | 1932 |  |   Czech Republic | Marvanová |  | 
| Edmund Mason Williams | 1890 | 1975 |   United Kingdom | E.W.Mason |  | 
| George Edward Massee | 1850 | 1917 |   United Kingdom | Massee |  | 
| John Macoun | 1831 | 1920 |   Canada | Macoun |  | 
| Edwin Butterworth Mains | 1890 | 1968 |   United States | Mains |  | 
| Nestor Léon Marchand | 1833 | 1911 |   France | Marchand |  | 
| Carl Friedrich Philipp von Martius | 1794 | 1868 |   Germany | Mart. |  | 
| Patrick Brandon Matheny | 1969 |  |   United States | Matheny |  | 
| Alphonse Louis Paul Matruchot | 1863 | 1921 |   France | Matr. |  | 
| Tom May |  |  |   Australia | T.W.May |  | 
| Konstantin Mereschkowski | 1855 | 1921 |   Russia | Mereschk. |  | 
| Charles Edward Miller | 1925 | 1984 |   United States | C.E.Mill. |  | 
| Georg Friedrich Wilhelm Meyer | 1782 | 1856 |   Germany | G.Mey |  | 
| Julian Howell Miller | 1890 | 1961 |   United States | J.H.Mill. |  | 
| Orson K. Miller, Jr. | 1930 | 2006 |   United States | O.K.Mill. |  | 
| Arthur Jackson Mix | 1888 | 1956 |   United States | Mix |  | 
| Kingo Miyabe | 1860 | 1951 |   Japan | Miyabe |  | 
| Jean Pierre François Camille Montagne | 1784 | 1866 |   France | Mont. |  | 
| Bland Symington Montenecourt | 1942 | 1987 |   United States |  | 
| Jiří Moravec | 1943 |  |   Czech Republic | J.Moravec |  | 
| Pierre Marie Arthur Morelet | 1809 | 1892 |   France |  | 
| Andrew Price Morgan | 1836 | 1907 |   United States | Morgan |  | 
| Meinhard Moser | 1924 | 2002 |   Austria | M.M.Moser |  | 
| Irene Mounce | 1894 | 1987 |   United States | Mounce |  | 
| Ferdinand von Mueller | 1825 | 1896 |   Germany | F.Muell. |  | 
| Emil Müller | 1920 | 2008 |    Switzerland | E. Müll. |  | 
| William Alphonso Murrill | 1869 | 1957 |   United States | Murrill |  | 
| Karl Wilhelm von Nägeli | 1817 | 1891 |    Switzerland | Nägeli |  | 
| Ian Axel Nannfeldt | 1904 | 1985 |   United States | Nannf. |  | 
| Christian Gottfried Daniel Nees von Esenbeck | 1776 | 1858 |   Germany | Nees |  | 
| Gustav Niessl von Mayendorf | 1839 | 1919 |   Austria | Niessl |  | 
| Frank Newhook |  |  |   New Zealand |  | 
| Mildred Katherine Nobles | 1903 | 1993 |  | Nobles |  | 
| Machiel Noordeloos | 1949 |  |   Netherlands | Noordel. |  | 
| William Nylander | 1822 | 1899 |   Finland | Nyl. |  | 
| Lauritz William Olson | 1945 | 1992 |   United States |  | 
| Robert T. Orr | 1908 | 1994 |   United States |  |  | 
| P.D. Orton | 1916 | 2005 |   United Kingdom | P.D.Orton |  | 
| Casper van Overeem | 1893 | 1927 |   Netherlands | Overeem |  | 
| Lee Oras Overholts | 1890 | 1946 |   United States | Overh. |  | 
| Alfred Nickolaevich Oxner | 1898 | 1973 |   Ukraine | Oxner |  | 
| Robert Meredith Page | 1919 | 1968 |   United States |  | 
| Kenneth E. Papa | 1931 | 1986 |   United States |  | 
| Frederick Parker-Rhodes | 1914 | 1987 |   United Kingdom | Park.-Rhodes |  | 
| Erast Parmasto | 1928 |  |   Estonia | Parmasto | 
| Flora Wambaugh Patterson | 1847 | 1928 |   United States | F.Patt. |  | 
| Jean-Jacques Paulet | 1740 | 1826 |   France | Paulet |  | 
| A. A. Pearson | 1874 | 1954 |   United Kingdom | A.Pearson |  | 
| Charles Horton Peck | 1833 | 1917 |   United States | Peck |  | 
| Christiaan Hendrik Persoon | 1761 | 1836 |   Netherlands | Pers. |  | 
| Thomas Petch | 1870 | 1948 |   United Kingdom | Petch |  | 
| Adrianuc Pijper | 1886 | 1964 |   Netherlands | Pijper |  | 
| Albert Pilát | 1903 | 1974 |   Czech Republic | Pilát |  | 
| Ronald H. Petersen | 1934 |  |   United States | R.H.Petersen |  | 
| Charles Bagge Plowright | 1849 | 1910 |   United Kingdom | Plowr. |  | 
| Eduard Friedrich Poeppig | 1791 | 1868 |   Germany | Poepp. |  | 
| Illtyd Buller Pole-Evans | 1879 | 1968 |   South Africa | Pole-Evans |  | 
| Flora G. Pollack | 1919 | 1997 |   United States | Pollack |  | 
| Rene Pomerleau | 1904 | 1993 |   Canada | Pomerl. |  | 
| Patricio Ponce de León | 1919 | 2010 |   Cuba | P.Ponce de León |  | 
| Zdeněk Pouzar | 1932 |  |   Czech Republic | Pouzar |  | 
| Karel Presl | 1794 | 1852 |   Czech Republic | C.Presl. |  | 
| Nathanael Pringsheim | 1823 | 1894 |   Germany | Pringsh. |  | 
| Lucien Quélet | 1832 | 1899 |   France | Quél. |  | 
| Edwin John Queskett | 1808 | 1847 |  | E.J.Quekett |  | 
| Gottlob Ludwig Rabenhorst | 1806 | 1881 |   Germany | Rabenh. |  | 
| Constantine Samuel Rafinesque | 1783 | 1840 |   France | Raf. |  | 
| Jörg H. Raithelhuber |  |  |  | Raithelh. |  | 
| John Ramsbottom | 1885 | 1974 |   United Kingdom | Ramsb. |  | 
| Robert Delafield Rands | 1890 | 1970 |   United States | Rands |  | 
| Kenneth Bryan Raper | 1908 | 1987 |   United States | Raper |  | 
| Carleton Rea | 1861 | 1946 |   United Kingdom | Rea |  | 
| Scott Redhead | 1950 |  |   Canada | Redhead |  | 
| Heinrich Rehm | 1828 | 1916 |   Germany | Rehm |  | 
| Ludwig Reichenbach | 1793 | 1879 |   Germany | Rchb. |  | 
| Derek Reid | 1927 | 2006 |   United Kingdom | D.A.Reid |  | 
| Harald Udo von Reidl | 1936 |  |   Austria | Rield |  | 
| Adalbert Ricken | 1851 | 1921 |   Germany | Ricken | 
| Henry Nicholas Ridley | 1855 | 1956 |   United Kingdom | Ridl. |  | 
| Clark Thomas Rogerson | 1918 | 2001 |   United States | Rogerson |  | 
| Henri Romagnesi | 1912 | 1999 |   France | Romagn. |  | 
| Emil Rostrup | 1831 | 1907 |   Denmark | Rostr. |  | 
| George Dewey Rühle | 1898 | 1962 |   United States | Rühle |  | 
| Georg Eberhard Rumphius | 1628 | 1702 |   Germany | Rumph. |  | 
| Pier Andrea Saccardo | 1845 | 1920 |   Italy | Sacc. |  | 
| Augustin Saint-Hilaire | 1799 | 1853 |   France | A.St.-Hil. |  | 
| Heinrich Sandstede | 1859 | 1951 |   Germany | Sandst. |  | 
| Vsevolod Pavlovic Savicz | 1885 | 1872 |   Russia | Savicz |  | 
| Douglas Barton Osborne Savile | 1919 | 2000 |   Canada | Savile |  | 
| Jacob Christian Schäffer | 1718 | 1790 |   Germany | Schaeff. |  | 
| Julius Schäffer | 1882 | 1944 |   Germany | Jul.Schäff. |  | 
| Diederich Franz Leonhard von Schlechtendal | 1794 | 1866 |   Germany | Schltdl. |  | 
| Joseph Schröter | 1837 | 1894 |   Germany | J.Schröt. |  | 
| Franz Paula von Schrank | 1747 | 1835 |   Germany | Schrank |  | 
| Stephan Schulzer von Müggenburg | 1802 | 1892 |   Hungary | Schulzer |  | 
| Marie Beatrice Schol-Schwarz | 1898 | 1969 |   Netherlands | M.B.Schwarz |  | 
| Lewis David von Schweinitz | 1780 | 1834 |   United States | Schwein. |  | 
| Giovanni Antonio Scopoli | 1723 | 1788 |   Italy | Scop. |  | 
| Fred Jay Seaver | 1877 | 1970 |   United States | Seaver |  | 
| Louis Secretan | 1758 | 1839 |    Switzerland | Secr. |  | 
| Steve Selva | 1948 |  |   United States | Selva | 
| Arthur Bliss Seymour | 1859 | 1933 |   United States | Seym. |  | 
| Leland Shanor | 1914 | 1993 |   United States | Shanor |  | 
| Charles Gardner Shaw | 1917 | 1998 |   United States | C.G.Shaw |  | 
| Cornelius Lott Shear | 1865 | 1956 |   United States | Shear |  | 
| John Sibthorp | 1758 | 1796 |   United Kingdom | Sibth. |  | 
| Margarita Silva-Hutner |  | 2002 |   Puerto Rico |  |  | 
| James Whaples Sinden | 1902 | 1994 |  | Sinden |  | 
| Rolf Singer | 1906 | 1994 |   Germany | Singer |  | 
| Alexander Hanchett Smith | 1904 | 1986 |   United States | A.H.Sm. |  | 
| Annie Lorrain Smith | 1854 | 1937 |   United Kingdom | A.L.Sm. |  | 
| James Edward Smith | 1759 | 1828 |   United Kingdom | Sm. |  | 
| Worthington George Smith | 1835 | 1917 |   United Kingdom | W.G.Sm. |  | 
| George Smith | 1895 | 1967 |   United Kingdom | G.Sm. |  | 
| Miroslav Smotlacha | 1920 | 2007 |   Czech Republic | Smotl. |  | 
| Walter Henry Snell | 1889 | 1980 |   United States | Snell |  | 
| Olav Johan Sopp | 1860 | 1931 |   Norway | Sopp |  | 
| James Sowerby | 1757 | 1822 |   United Kingdom | Sowerby |  | 
| Carlos Luigi Spegazzini | 1858 | 1926 |   Argentina | Speg. |  | 
| Roderick Sprague | 1901 | 1962 |   United States | R.Sprague |  | 
| Kurt Sprengel | 1766 | 1833 |   Germany | Spreng. |  | 
| Nicolay Konstantinovich Sredinsky | 1843 | 1908 |   Ukraine | Sred. |  | 
| Elvin C. Stakman | 1885 | 1979 |   United States | Stakman. |  | 
| Paul Stamets | 1955 |  |   United States | Stamets |  | 
| Frank Lincoln Stevens | 1871 | 1934 |   United States | F.Stevens |  | 
| Neil Everett Stevens | 1887 | 1949 |   United States | N.E.Stevens |  | 
| Greta Stevenson | 1911 | 1990 |   New Zealand | G.Stev. |  | 
| John Albert Stevenson | 1890 | 1979 |   United States | J.A.Stev. |  | 
| Daniel Elliot Stuntz | 1909 | 1983 |   United States | D.E.Stuntz |  | 
| Teófilo Herrera Suárez | 1924 |  |   Mexico | T.Herrera |  | 
| Richard C. Summerbell | 1956 |  |   Canada | Summerb. |  | 
| David Ross Sumstine | 1870 | 1965 |   United States | Sumst. |  | 
| Mirko Svrček | 1925 |  |   Czech Republic | Svrček |  | 
| Hans Sydow | 1879 | 1946 |   Germany | Syd. |  | 
| Paul Sydow | 1851 | 1925 |   Germany | P.Syd. |  | 
| John Waldo Taylor |  |  |   United States | J.W.Taylor |  | 
| Fidel Tapia |  |  |  | F.Tapia |  | 
| Leo Roy Tehon | 1895 | 1954 |   United States | Tehon |  | 
| Roland Thaxter | 1858 | 1932 |   United States | Thaxt. |  | 
| Harry D. Thiers | 1919 | 2000 |   United States | Thiers |  | 
| Charles Thom | 1872 | 1956 |   United States | Thom |  | 
| Carl Peter Thunberg | 1743 | 1828 |   Sweden | Thunb. |  | 
| Phillippe Édouard Léon van Tieghem | 1839 | 1914 |   France | Tiegh. |  | 
| Lois Hattery Tiffany | 1924 | 2009 |   United States | L.H.Tiffany |  | 
| John Torrey | 1796 | 1873 |   United States | Torr. |  | 
| Joseph Pitton de Tournefort | 1656 | 1708 |   France | Tourn. |  | 
| Vladimir Andreevich Tranzschel | 1868 | 1942 |   Russia | Tranzschel |  | 
| James M Trappe |  |  |   United States | J.M.Trappe |  | 
| Giovanni Battista Traverso | 1878 | 1959 |   Italy | Traverso |  | 
| Edward Tuckerman | 1817 | 1886 |   United States | Tuck. |  | 
| Charles Tulasne | 1816 | 1884 |   France | C.Tul. |  | 
| Louis René Tulasne | 1815 | 1885 |   France | Tul. |  | 
| Francis A. Uecker | 1930 | 1995 |   United States | Uecker |  | 
| Oskar Eberhard Ulbrich | 1857 | 1952 |   Germany | Ulbr. |  | 
| Lucien Marcus Underwood | 1853 | 1907 |   United States | Underw. |  | 
| Zdeněk Urban | 1923 | 2000 |   Czech Republic | Z.Urb. |  | 
| Martin Vahl | 1749 | 1804 |   Denmark | Vahl. |  | 
| Sébastien Vaillant | 1669 | 1722 |   France | Vaill. |  | 
| Mall Vaasma | 1945 | 2009 |   Estonia |  | 
| Edvard August Vainio | 1853 | 1929 |   Finland | Vainio |  | 
| Josef Velenovský | 1858 | 1949 |   Czech Republic | Velen. |  | 
| Antonín Vězda | 1920 | 2008 |   Czech Republic | Vězda |  | 
| Rytas Vilgalys | 1958 |  |   United States | Vilgalys |  | 
| Thomas Volk |  |  |   United States | T.J.Volk |  | 
| Jean Paul Vuillemin | 1861 | 1932 |   France | Vuill. |  | 
| Göran Wahlenberg | 1780 | 1851 |   Sweden | Wahlenb. |  | 
| Elsie Maud Wakefield | 1886 | 1972 |   United Kingdom | Wakef. |  | 
| Nathaniel Wallich | 1786 | 1854 |   Denmark | Wall. |  | 
| Harry Marshall Ward | 1854 | 1906 |   United Kingdom | H.M.Ward |  | 
| Eugenius Warming | 1841 | 1924 |   Denmark | Warm. |  | 
| R. Gordon Wasson | 1898 | 1986 |   United States |  | 
| Roy Watling | 1938 |  |   Scotland | Watling |  | 
| Lewis Edgar Wehmeyer | 1897 | 1971 |   United States | Wehm. |  | 
| Christian Ehrenfried Weigel | 1748 | 1831 |   Germany | Weigel |  | 
| Friedrich Welwitsch | 1806 | 1872 |   Austria | Welw. |  | 
| Luella Kayla Weresub | 1918 | 1979 |   Canada | Weresub |  | 
| Erdman West | 1894 | 1965 |   United States | E.West |  | 
| Johanna Westerdijk | 1883 | 1961 |   Netherlands | Westerd. |  | 
| Mogens Westergaard | 1912 | 1975 |   Denmark |  | 
| William Henry Weston | 1890 | 1978 |   United States | W.Weston |  | 
| Herbert Hice Whetzel | 1877 | 1944 |   United States | Whetzel |  | 
| Howard C. Whisler | 1931 | 2007 |   United States | Whisler |  | 
| William Lawrence White | 1908 | 1952 |   United States | W.L.White |  | 
| Carl Ludwig Willdenow | 1765 | 1812 |   Germany | Willd. |  | 
| William Withering | 1741 | 1799 |   United Kingdom | With. |  | 
| Frederick Adolph Wolf | 1885 | 1975 |   United States | F.A.Wolf |  | 
| Alec Wood | 1933 |  |   Australia | A.E.Wood |  | 
| John Medley Wood | 1827 | 1915 |   South Africa | J.M.Wood |  | 
| Jorge Eduardo Wright | 1922 | 2005 |   Argentina | J.E.Wright |  | 
| Franz Xavier von Wulfen | 1728 | 1805 |   Austria | Wulfen |  | 
| Cecil Edmund Yarwood | 1907 | 1981 |   United States |  | 
| Anthony M. Young |  |  |   Australia | A.M.Young |  | 
| Wanda Zabłocka | 1900 | 1978 |   Poland |  | 
| Alexander Zahlbruckner | 1860 | 1939 |   Austria | Zahlbr. |  | 
| Sanford Myron Zeller | 1885 | 1948 |   United States | Zeller |  | 
| Friedrich Wilhelm Zopf | 1846 | 1909 |   Germany | Zopf |  | 
| George Lorenzo Zundel | 1885 | 1950 |   United States | Zundel |  |