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1883 - 1980 
Hannah Aase Hannah Aase was an American cytologist/cytotaxonomist and was the first Emeritus Professor at the State College of Washington. |
1872 - 1954 
Charles Allen Charles Elmer Allen was an American plant cytogeneticist who worked on pollen development, spermatogenesis and polyploidy. He was a professor at the University of Wisconsin. |
1921 - 1989 
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Earlene Atchison Earlene Atchison was an American cytotaxonomist who worked mostly with Fabaceae (bean family) and tropical trees. |
1929 - 2015 
John Beaman John H. Beaman was an American botanist and cytotaxonomist on the faculty of Michigan State University, whose work on the flora of Mt. Kinabulu, Borneo showed it to be one of the richest floras in the world. |
1899 - 1984
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A. Dorothy Bergner A. Dorothy Bergner was an active American plant cytogeneticist in the first half of the 20th Century |
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1913 - 1991 
William Brown William Lacy Brown was an American plant geneticist and breeder who had a global influence on stabilizing food production as a result of research on maize, sorghum, soybeans and wheat. |
1870 - 1958
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William Cannon William Austin Cannon was an American plant physiologist, plant ecologist, plant geneticist/cytogeneticist and plant anatomist who was one of the first scientists (in 1902) to suggest the role of chromosomes in heredity, although credit is given to two contemporary animal geneticists. His early work was on the nature of hybrids. He was the first investigator at the Carnegie Institute's Desert Laboratory, where he studied roots systems and the ecology of desert plants. His classification of root systems is still in use. |
1904 - 1995 
Marion Cave Marion Cave was an American botanist and cytogeneticist who carried out cytologic and genetic research over a wide variety of taxa, including fungi, algae and flowering plants and edited the important reference Index to Plant Chromosome Numbers. |
1918 - 2021 
Sherret Chase Sherret Spaulding Chase was an American cytogeneticist who earned his Ph.D. at Cornell University and worked on maize and other cereal grains. |
1891 - 1969 
Jens Clausen Jens Clausen was a Danish-American botanist who, in collaboration with David Keck and William Hiesey, established the concept of ecotypes, that "climatic races" are adapted by heredity to grow in specific environments, rather than environment-induced changes in growth form somehow affecting genetic makeup. |
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1892 - 1971 
Ralph Cleland Ralph Cleland Erskine was an American botanist, an expert on Oenothera (evening primrose), and credited with the discovery of chromosomal ring formation at meiosis. |
1903 - 1981
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Cyril Darlington Cyril Dean Darlington was an American plant cytogeneticist who worked mostly in the area of karyology and chromosome biology, including polyploidy. Darlington was also known as a eugenecist. |
1895 - 1966 
Milislav Demerec Milislav Demerec was a Croatian-American geneticist who earned his PhD at Cornell University. He worked on maize genetics and on Drosophila, and directed what would become the Cold Spring Harbor Laboratory. He is credited with hiring two future Nobel Prize winners, Barbara McClintock and Nobel Hershey. |
1869 - 1953 
Henry Dixon Henry Horatio Dixon was an Irish plant physiologist on the faculty of Trinity College who, with John Joly, described the mechanism of the flow of sap through the xylem against gravity (cohesion-tension theory). |
1915 - 1981 
John Einset John Einset was a cytogeneticist and pomologist specializing in grapes and apples who earned both his bachelor's and Ph.D. from Cornell, later heading its Department of Pomology for nearly 20 years. |
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1899 - 2002
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Eileen Erlanson Eileen Whitehead Erlanson was an American plant cytogeneticist who specialized on cytotaxonomy of the genus Rosa (Rosaceae) |
1863 - 1951 
Margaret Ferguson Margaret Clay Ferguson was an American plant geneticist, cytogeneticist, physiologist, educator, and the first female president of the American Botanical Society. |
1882 - 1962 
Reginald Gates Reginald Ruggles Gates was a Canadian plant geneticist and cytogeneticist who worked extensively on the genus Oenothera (Onagraceae). He was briefly married to the infamous paleobotanist Marie Stopes and, like her, had been directly associated with the eugenics movement. |
1924 - 2011 
William Grant William F. Grant was a Canadian plant systematist and cytogeneticist who worked out of McGill University, who is best known for his work on plant bioassaying, having developed plants to monitor and test for mutagenic compounds in the environment. |
1879 - 1967 
Helen Gwynne-Vaughan Helen Gwynne-Vaughan was an English mycologist, geneticist, and botanist who served in the Women's Auxiliary Air Force during WWI. |
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1914 - 2000 
Adolph Hecht Adolpn Hecht was an American botanist, on the faculty of Washington State University for most of his career. He also served as editor of Plant Science Bulletin for many years. |
1889 - 1968 
Carl Hoar Carl Sherman Hoar was an American plant anatomist and cytogeneticist trained at Harvard University, and was a professor of Botany at Williams College in Massachusetts. |
1925 - 2003 
Juan Hunziker Juan H. Hunziker was an Argentinian plant taxonomist, agrostologist and cytogeneticist who served on the faculty of Universidade de Buenos Aires and as director of the Instituto de Botanica Darwinion. |
1914 - 2013 
Mary Jotter Mary Lois Jotter was an American botanist on the faculty of University of North Carolina, Greensboro. She was the spouse of botanist Victor Cutter, Jr. |
1870 - 1927 
Abercrombie Lawson Abercrombie Anstruther Lawson was a Canadian cytogeneticist, plant anatomist and morphologist on the faculty of University of Sydney, who studied the origins and evolution of gymnosperms. He was also an advocate of environmental conservation in Australia. |
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1919 - 2008 
Harlan Lewis Harlan Lewis was an American plant cytogeneticist, taxonomist, and evolutionary biologist who worked primarily on plants in the family Onagraceae. He coined the terms "catastrophic selection" and "saltational speciation" to describe modes of rapid speciation in certain plants. |
1918 - 2000 
Doris Love Doris Love was a Swedish botanist and cytotaxonomist who is credited, along with her spouse Askell Love, with founding the field of cytotaxonomy. |
1916 - 1994 
Askell Love Askell Love was an Icelandic cytotaxonomist who emigrated to Canada and eventually to the United States where he worked at the University of Colorado until 1974 when he was forced to resign under "dubious circumstances." |
1871 - 1938 
Anne Lutz Anne May Lutz was an American cytogeneticist at the Cold Spring Harbor Laboratory (of the Carnegie Institution of Washington), who studied the cytological basis of variation using various organisms including Oenothera. |
1902 - 1992 
Barbara McClintock Barbara McClintock was an American cytogeneticist whose work with Zea mays led to her discovery of genetic transposition, for which she was awarded a Nobel Prize in 1983. |
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1951 - 2007 
Wilfried Morawetz Wilfried Morawetz was an Austrian plant ecologist, plant geographer, and cytogeneticist on the faculty of Universitaet Leipzig, where he was also director of the herbarium and the botanical garden. He worked extensively in the tropics and was the first to employ a "canopy crane" in South America (Venezuela) to explore forest canopy. |
1928 - 2011
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John Morton John K. Morton was an English botanist, cytologist, palynologist, and entomologist. He worked in England, West Africa, and North America and retired from the faculty of University of Waterloo, Ontario, in 1994. An expert in the flora of Ontario, he was a contributor to Flora of North America. His extensive personal plant collections were deposited at Missouri Botanical Garden (MO) and Royal Ontario Museum (TRT), with his insect collection going to the Canadian National Collection (CNC). |
1917 - 1988 
Lindsay Olive Lindsay S. Olive was an American mycologist and cytogenetecist, who also published on plant taxonomy. Olive was in the National Academy of Sciences, and was a professor at Columbia University and later at University of North Carolina, Chapel Hill. He discovered and described several new taxa. |
1932 - 2000 
Robert Ornduff Robert Ornduff was a well-known American plant taxonomist, cytotaxonomist, and pollination biologist who worked on a variety of plant groups both in North America and Australia. |
1916 - 2010 
Gerald Ownbey Gerald Ownbey was an American botanist, herbarium curator and educator at University of Minnesota with expertise in the flora of Minnesota, who co-authored The Vascular Plants of Minnesota: a Checklist and Atlas in 1991. |
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1924 - 2004
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Gopinath Panigrahi Gopinath Panigrahi was an Indian plant taxonomist and cytogeneticist long associated with the Botanical Survey of India. He collected more than 20,000 specimens over his lifetime. |
1903 - 1991 
Marcus Rhoades Marcus M. Rhoades was an American cytogeneticist who earned his Ph.D. at Cornell University, and whose pioneering work with maize genetics included the first documentation of "meiotic drive" during meiosis. |
1897 - 1990
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Muriel Roscoe Muriel V. Roscoe was a Canadian botanist and cytotaxonomist who worked with noted paleobotanist Edward Jeffrey at Harvard University. |
1896 - 1981
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Mabel Ruttle Mabel L. Ruttle was an American plant cytogeneticist who conducted cytological research on Nicotiana and was associated with the New York State Experiment Station in Geneva, New York. |
1892 - 1973 
Karl Sax Karl Sax was an American plant cytogeneticist who made significant contributions to the fields of cytogenetics and radiation biology while at Harvard University, and was a strong advocate of human population control, authoring Standing Room Only in 1955. He also served as director of the Arnold Arboretum, Harvard University. |
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1887 - 1961 
Lester Sharp Lester W. Sharp was a pioneering American cytogeneticist and longtime professor at Cornell University, who taught the one of the first courses in cytology in an American university, authored two textbooks and numerous publications in that rapidly developing field and was known for his skill in teaching, his generosity toward students, and his keen sense of humor. |
1929 - 1992 
Sidney Snow Sidney Richard Snow was an American botanist and plant cytogeneticist who devised an improved method of visualization of plant chromosomes at meiosis, and was one of the first geneticists to use molecular techniques in improvement of yeast strains used in winemaking. |
1844 - 1912 
Eduard Strasburger Eduard Strasburger was a Polish-German botanist credited with several firsts. He was the first to elucidate the embryonic sac in angiosperms and gymnosperms, the first to show double-fertilization in angiosperms, and the first to state that new cell nuclei are derived from other cell nuclei. He also coined the terms cytoplasm and nucleoplasm. |
1918 - 2010 
Charles Uhl Charles Uhl was a well-known cytologist, taxonomist and cytotaxonomist who worked extensively on Crassulaceae. Uhl was a faculty member at Cornell University and the spouse of Natalie Whitford Uhl, noted plant anatomist and palm taxonomist. |
1904 - 1993 
Thomas W. Whitaker Thomas W. Whitaker was an American cytogeneticist and horticulturist who worked mainly on the family Cucurbitaceae (squash family) for USDA. |
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1880 - 1971 
Kono Yasui Yasui Kono was a Japanese biologist and cytologist and the first woman in Japan to earn a Ph.D. in the sciences. |