- Growns, I. O. (Ivor O.)
- Growns, J E
- Growse, Frederic Salmon
- Groza, Mariana
- Grozeva, Neli
- Grozeva, Snejana
- Grözinger, Franziska
- Gru, Gio. Batta., approximately 1790-approximately 1825
- Grubb, E. H.
- Grubb, Elizabeth A. A.
- Grubb, P. J. (Peter J.)
- Grubb, Patric Louis Cedric
- Grubb, Peter, 1942-2006
- Grubb, Teryl G
- Grubb, Thomas C., Jr.
- Grubb, Violet M.
- Grubbs, Andrew G.
- Grubbs, Dean
- Grubbs, Jeffrey T.
- Grubbs, Samuel Bates, 1871-
- Grubbs, Scott A
- Grube & Nieuwland.
- Grube, Adolph Eduard, 1812-1880
- Grube, C J
- Grube, Martin
- Grube, Reiner
- Gruber, August, 1853-1938
- Gruber, Bernd
- Gruber, Calvin Luther 1864-1943
- Gruber, Caroline Vivian
- Gruber, Charles M.
- Gruber, Daniela
- Gruber, David F.
- Gruber, Hans-Jürgen
- Gruber, Jacob W.
- Gruber, Jürgen
- Gruber, Monica A. M.
- Gruber, Samuel H.
- Gruber, Simone
- Gruber, Ulrich
- Gruber, Vitus
- Gruber, Wenzel.
- Grubert, Mark A.
- Grubh, B. Robert
- Grubh, Robert B
- Grubov, Valeriĭ Ivanovich
- Gruby, David 1810-1898
- Gruchalla, Frank J.
- Gruchy, Charles G
- Grucky, Nicole K
- Grue, Christian E.
- Gruel, Donald D.
- Gruell, George E.
- Gruenberg, Benjamin C. (Benjamin Charles), 1875-1965
- Gruendling, Gerhard K
- Gruenewald, Theo
- Gruenhagen, Alfred Wilhelm, 1842-1912
- Gruenwald, Jessica
- Gruet, Yves
- Gruev, Blagoĭ
- Gruezo, William Sm
- Grugel, Sharon R.
- Gruhl, Kurt
- Gruia, Magdalena
- Gruiner, C. A.
- Gruithuisen, Franz von Paula, 1774-1852
- Grula, J W
- Grulet, Odile
- Grulich, Oskar, 1844-1913
- Grullemans, J. J.
- Grullemans, J.J. & Sons.
- Grumbach, G.,
- Grum-Grzhimailo, G. E. 1860-1936
- Grummt, Wolfgang
- Grün, Gerd
- Grunbaum, Daniel
- Grunberg, Karina A.
- Grünberg, Karl, 1878-1931
- Grünberg, R
- Grund, Alfred 1875-1914
- Grund, Marie.
- Grund, R
- Gründel, Joachim
- Grundfest, Harry
- Grundlach
- Grundler, Adolf
- Gründler, Gottfried August, 1775
- Grundler, Maggie R
- Grundler, Michael C
- Grundmann, Albert W. 1912-1994
- Grundner, Friedrich, 1849-1921
- Grundon, Noel J
- Grundova, S
- Grundstrom, Nils
- Grundy, C. Reginald (Cecil Reginald), 1870-1944
- Grundy, Edwin
- Grundy, Kerry James
- Grundy, Shane
- Grundy's Gardens.
- Gruner, Herr Consul.
- Gruner, Christian Gottfried
- Gruner, Erich Christian Ludwig
- Gruner, Leopold.
- Grunert, Johann August
- Grunert, Johann Friedrich,
- Grunert, Oscar.
- Grunert, Paul.
- Grunewald-Lowenstein, Marta
- Grüning, G.R.
- Grüninger, Johann, 1532?
- Grunow, A. (Albert), 1826-1914
- Grunow, Julius
- Grunow, William
- Grunshaw, J. P.
- Grunsky, C. E., 1855-1934
- Grünspan, Therese
- Grunstra, Matthew
- Gruntman, Michal
- Grünwald, Alfons
- Grünwald, André J
- Grünwald, Christoph I
- Grünwald, Mathias
- Grünwaldt, Robert Wilhelm
- Grünwoldt, Franz, 1908-
- Grunzel, Joseph
- Grupe, Arthur
- Grupe, Gisela
- Grupo Botánico Gallego
- Grupo Pteridológico Ibérico
- Gruppe, Axel
- Gruppi, Vivian Tafarello
- Grushvit︠s︡kiĭ, Igorʹ Vladimirovich 1916-1957
- Grüss, Johannes, 1860-
- Gruss, Olaf
- Grussu, Marcello
- Grusz, Amanda Lee
- Gruszka, John.
- Gruterus, Jacobus.
- Grütjen, Oliver
- Grutter, A. S.
- Grutter, Michel
- Gruvel, M.
- Gruvel, A. (Abel), 1870-1941
- Gruwier, Christophe
- Gruythuysen, Jacob
- Gryc, George
- Grygiel, Carolyn E.
- Grygier, Mark J.
- Grylls, James Willyams.
- Gryzenhout, Marieka
- Grzanna, Reinhard.
- Grzelak, Katarzyna
- Grześ, Irena
- Grzimek, Bernhard 1909-1987
- Grzybkowska, Maria 1948-
- Grzybowski, Joseph A
- Grzymala, Traci
- Grzywacz, Beata
- Gschwendtner, Leopold
- Gsell, Jacques
- Gsell, Stéphane, 1864-1932
- Gsell, William L.
- Gt. van Waveren & Kruyff.
- gu lu xiu 顾騄修
- gu sheng wu ji chu li lun cong shu bian wei hui
- gu shi zhu 顾实著
- Gu, Chaolan
- Gu, Hong-Ya
- Gu, JunJie
- Gu, Mengmeng
- Gu, Mo
- Gu, Shimin
- Gu, Sui
- Gu, Xiao-Di
- Gu, Xin
- Gu, Xinyao
- Gu, Xinyu
- Gu, Yufeng
- Gu, Zhirong
- Guada, Hedelvy J.
- Guadagnin, Demétrio Luis
- Guadagnoli, Jutta A.
- Guadalupe González, María Elena
- Guadanucci, José Paulo Leite
- Guadarrama Martínez, Noemi
- Guadarrama-Chávez, María Patricia
- Guadarrama-Martínez, Miguel Ángel
- Guadarrama-Oliver , Ma. de los Angeles (María de los Angeles)
- Guaglianone, E. Rosa
- Guajará, Mariângela da Silva
- Guajardo, Andrés
- Guajardo, Eduardo
- Gual Díaz, Martha
- Guala, Gerald F., 1965-
- Gualberto, T. L.
- Gualda-Barros, Juliana
- Gualdoni, Cristina M.
- Gualteros, William O.
- Gualtieri, Lola L.
- Gualtieri, Niccolò, 1688-1744
- Guamán, Víctor Hugo Eras
- guan gai xi tong xin jian gai jian ke xue ji shu jiao liu hui yi mi shu chu bian
- guan zhong zhuan 管仲撰
- Guan, Bei
- Guan, Dexin
- Guan, Hao-Wen
- Guan, Kaile
- Guan, Qian-xin
- Guan, Shu-Ping
- Guan, Xijin
- Guan, Xiong
- Guan, Yanmei
- Guan, Zheng-Jun
- Guanabens, Rafael Eugênio Maia
- guang chuan xiu fu wan nei li
- guang dong sheng hai nan qu ya re dai zi yuan kai fa wei yuan hui
- guang dong sheng hai nan xing zheng gong shu re dai zuo wu chu 广东省海南行政公署热带作物处
- guang dong sheng han nan qu ya re dai zi yuan kai fa wei yuan hui
- guang dong sheng lin ye ting bian
- guang dong sheng lin ye ting ji shu shi
- guang dong sheng nong ye ting bian
- guang dong sheng ya re dai zi yuan kai fa wei yuan hui
- guang xi dong zu zi zhi qu shui tu bao chi wei yuan hui bian
- guang xi ke xue yuan guang xi zhi wu yan jiu suo bian
- guang xi sheng li ye ting bian
- guang xi tong zu zi zhi qu shang ye ting yi yao chu bian
- guang xi tong zu zi zhi qu wei sheng ting bian
- guang xi zhi wu yan jiu suo bian xie 广西植物研究所编写
- Guang, Hao
- Guang, Xue Zhang
- Guangjie, Luo
- Guapacha-Marulanda, Kelly Joahnna
- Guaranty Nursery Company.
- Guaratini, Maria Tereza Grombone
- Guarçoni, Elidio Armando Exposto
- Guard, Frances
- Guard, Frances E.
- Guard-Friar, Deborah
- Guàrdia i Rúbies, Roser
- Guardia Lopez, Ariel
- Guàrdia Valle, Laia
- Guardia, Isabela
- Guardia, Leonor
- Guardia, Marina Crestana
- Guardia-Felipi, P.
- Guards, Lieut Scots
- Guareschi, Simone
- Guariento, Rafael Dettogni
- Guariglia, C. S. T.
- Guarim, Vera Lucia M.S