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BORN ON THIS DATE (9 May ):
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1829 - 1903 
Joseph Hinson Mellichamp Joseph Hinson Mellichamp was an American physician and Confederate Army surgeon, as well as an amateur botanist who collected widely in the American southeastern states. |
CLICK BELOW ON TOPIC NAVIGATORS TO SEE SUBSETS OF BH BIOS: (these lists are incomplete)
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1197 - 1248 
Ibn al-Baitar Ibn al-Baitar was an Islamic Golden Age botanist and pharmacologist whose work was used by physicians for over 500 years after his death. |
1883 - 1980 
Hannah Aase Hannah Aase was an American cytologist/cytotaxonomist and was the first Emeritus Professor at the State College of Washington. |
1905 - 2000 
Ernst Abbe Ernst Cleveland Abbe was an American plant anatomist trained at Cornell University known for his work on Betulaceae and Myrsinaceae. He collected widely in Canada and Southeast Asia. |
1906 - 1992 
Lucy B. Abbe Lucy B. Abbe was an American botanist who earned A.B. and M.Sc. degrees from Cornell University. |
1920 - 1986 
Donald Abbott Donald P. Abbott was an American marine zoologist and educator who co-authored Intertidal Invertebrates of California in 1980. |
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1919 - 2010 
Isabella Abbott Isabella Aiona Abbott was an internationally renowned phycologist and the world's leading expert on Pacific seaweeds. |
1915 - 1985 
Maxine Abbott Maxine L. Abbott was an American paleobotanist associated with Sul Ross State University, Alpine, Texas. She worked on Paleozoic ferns and lycopsids. |
1926 - 2014 
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Robinson Abbott Robinson Shewell Abbott was an American biologist and professor at Smith College, who earned a Ph.D. at Cornell University in 1956. |
1914 - 2004 
Hilda Aboy Hilda Elena Aboy was an American botanist who studied under Arthur J. Eames at Cornell University. |
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1874 - 1956 
Leroy Abrams Leroy Abrams was an American plant taxonomist who studied the flora of California and adjacent states. |
1926 - 2007 
Jacqueline Adams Jacqueline Nancy Mary Adams was a New Zealand botanist and botanical illustrator recognized for her numerous contributions to publications on native plants of New Zealand. |
1906 - 1986 
Joseph Adams Joseph Adams was an American botanist and plant collector regarded as expert in the flora of Pennsylvania, and who served as Curator of the Herbarium at the Morris Arboretum. |
1903 - 1989
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Myrtle T. Adams Myrtle T. Adams was known as a plant collector and spouse of Joseph William Adams. |
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1727 - 1806 
Michel Adanson Michel Adanson was a French botanist and mycologist who developed a competing system of classification to that of Linnaeus, published in Familles des Plantes in 1763. Adanson was the first to classify lichens among the fungi. |
1831 - 1886 
Nils Ahlberg Nils Fredrik Ahlberg was a Swedish schoolteacher and botanist employed as Conservator of the Botanical Museum, Uppsala University. |
1924 - 1981 
Harry E. Ahles Harry E. Ahles was a self-taught North American botanist and curator of the herbarium at the University of North Carolina, Chapel Hill. |
1905 - 1991 
Sten Ahlner Sten Gustav Ahlner was a Swedish lichenologist who studied at the University of Uppsala with G. Einar DuRietz |
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1930 - 2012 
Vernon Ahmadjian Vernon Ahmadjian was an American lichenologist who was especially interested in symbiosis. |
1892 - 1984 
George Aiken George D. Aiken was an American horticulturist and nursery operator in Putney, VT, with the firm known as Darrow & Aiken (with George M. Darrow) as well as the firm Geo. D. Aiken. He published two books on horticulture, "Pioneering with Wildflowers" (1933) and "Pioneering with Fruits and Berries" (1936). Aiken was also a politician, serving as Governor of Vermont (1937-1941) and U.S. Senator from Vermont (1941-1975), among other offices. |
1902 - 1985 
Herbert Airy Shaw Herbert Kenneth Airy Shaw was an English botanist and entomologist with expertise in the flora of tropical Asia as well as the family Euphorbiaceae. He was employed by the Royal Botanic Gardens, Kew. |
1731 - 1793 
William Aiton William Aiton was a Scottish botanist and first director of the Royal Botanic Gardens, Kew. He published Hortus Kewensis, a catalogue of the plants cultivated at the gardens. |
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1766 - 1849 
William Aiton William Townsend Aiton, son of William Aiton, was an English botanist and the director of the Kew Botanical Gardens. He was also a founder of the Royal Horticultural Society. Aiton released the expanded second edition of Hortus Kewensis, a catalogue of the plants kept at Kew. |
1892 - 1961 
Frederick Albertson Frederick Albertson was an American grassland ecologist and entomologist, with expertise in drought and range management on the midwestern plains. |
1838 - 1914
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Mary Albertson Mary A. Albertson was an American botanist and astronomer, and curator of the Maria Mitchell Memorial and Observatory, Nantucket, Massachusetts. |
1838 - 1919
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William Alcott William Penn Alcott was an American clergyman and amateur botanist, and a relative of Louisa May Alcott. |
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1858 - 1932 
Rufus Alderson Rufus Davis Alderson was a teacher and printer who collected plants in San Diego county, California in the early 1890s. |
1867 - 1950 
Annie Alexander Annie Montague Alexander was an American (born in the Kingdom of Hawaii) paleontologist and philanthropist whose patronage led to the establishment of the University of California Museum of Paleontology and Museum of Vertebrate Zoology. |
1889 - 1981 
Charles Alexander Charles Paul Alexander was an American aquatic entomologist and educator who earned his Ph.D. at Cornell University, known for his expertise in the family Tipulidae (craneflies). |
1901 - 1985
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Edward Alexander Edward J. Alexander was an American botanist and curator at the New York Botanical Garden, and editor of the journal Addisonia. He collected many live plants and seeds for NYBG on a Mexican expedition in the 1940s. |
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1809 - 1902 
Richard Alexander Richard Chandler Alexander was an English physician and botanist who collected in Europe, Austria, South Africa, North America, and the West Indies. |
1907 - 1986 
Constantine Alexopoulos Constantine Alexopoulos was an American mycologist and myxomycologist who pioneered work on fungal DNA, and who wrote authoritative textbooks used by students worldwide. |
1880 - 1963
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Harry A. Allard Harry A. Allard was an American botanist credited with the co-discovery of photoperiodism. His research extended to plant pathology (tobacco mosaic), plant breeding, as well as pioneering acoustical studies of insects. |
1885 - 1964 
Arthur Allen Arthur Allen was an American ornithologist and the founder, in 1915, of the Laboratory of Ornithology at Cornell University. |
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1904 - 1975 
Caroline Allen Caroline Allen was an American plant taxonomist and botanical illustrator, and an expert on the angiosperm family Lauraceae. |
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. |
1906 - 2006 
Ethel K. Allen Ethel K. Allen was an American plant physiologist and bacteriologist who worked on symbiosis and nitrogen fixation |
1838 - 1921 
Joel Allen Joel A. Allen was an American zoologist and ornithologist who developed "Allen's rule" about the relationship, in endothermic animals, between body surface area and climate. |
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1899 - 1967
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Leland Allen Leland Norcross Allen was an American seed analyst who earned his Master's degree at Cornell University. He devised novel methods for seed quality assurance. |
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Mabel Allen Mabel Allen was an American collector of New York State plants, and herbarium assistant at Cornell university. |
1836 - 1913
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Oscar Allen Oscar Dana Allen was an American bryologist (and father of bryologist John Alpheus Allen), who is also credited with determining the atomic weight of cesium. |
1911 - 1963 
Paul Allen Paul H. Allen was an American orchidologist and plant ecologist who collected extensively in Panama in cooperation with the Missouri Botanical Garden, and who collected wild and cultivated bananas in the western Pacific for United Fruit Co. as part of a large breeding project. |
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1907 - 1993 
Raymond Allen Raymond Clayton Allen was an American horticulturalist and rose expert who obtained his Ph.D. from Cornell University, and the first director of the Kingwood Center Gardens in Mansfield, Ohio. |
1879 - 1963 
Ruth Allen Ruth F. Allen was an American plant pathologist, and was the first woman to receive a Ph.D. in botany from the University of Wisconsin in 1909 |
1913 - 1984 
Ruth Allen Ruth Allen was an amateur American mycologist, nature photographer and conservationist in the area of New Jersey and Philadelphia, USA |
1837 - 1902 
Timothy Allen Timothy Allen was an American homeopathic physician and active member of the Torrey Botanical Club who studied the Characeae, authoring the two-volume Characeae of North America in 1888. |
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1728 - 1804 
Carlo Allioni Carlo Allioni, for whom Linnaeus named the genus Allionia, was a physician most known for his pioneering botanical study of the Piedmont region in northwest Italy. |
1812 - 1898 
George Allman George James Allman was an Irish naturalist and botany professor with wide ranging interests who wrote and illustrated numerous papers and was an officer in several prestigious scientific organizations. |
1888 - 1962
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Carl Alm Carl Gustav Alm was a Swedish botanist and phytogeographer at the Botanical Museum of Uppsala, and director of the Linnaean Garden, Uppsala. |
1553 - 1617 
Prospero Alpini Prospero Alpini was a Venetian physician and economic botanist, and the fourth prefect of the botanical garden at Padua. His work with date palms in Egypt informed him about dioecioius vs. monoecious sexual systems in plants. The plant genus Alpinia is named for him. |
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1848 - 1908 
Fernando Altamirano Fernando Altamirano was a Mexican physician, pharmacologist, and economic botanist who founded the Instituto Medico Nacional. |
1878 - 1969 
Blanche Ames Blanche Ames was an American botanical illustrator, who provided illustrations for the Orchidaceae studies of Oakes Ames. She was also an activist and inventor. |
1874 - 1950 
Oakes Ames Oakes Ames was an American orchidologist and botanist on the faculty of Harvard University. His orchid herbarium of over 130,000 sheets, together with a supporting library, were donated to Harvard in 1938. |
1897 - 1984 
Edavaleth Ammal E. K. Janaki Ammal was was a pioneer of plant cytology and cytogenetics and was known as "the botanist who sweetened India" for her work on sugarcane breeding. |
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1707 - 1741
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Johann Amman Johann Amman was a Swiss-Russian physician and botanist who collected extensively in eastern Europe, and in 1739 published Stirpium Rariorum in Imperio Rutheno Sponte Provenientium Icones et Descriptiones, describing and illustrating Ukrainian flora. |
1881 - 1966
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Emma N. Andersen Emma N. Anderson was an American bryologist and faculty member at University of Nebraska College of Agriculture. |
1862 - 1943 
Alexander Anderson Alexander Anderson was an American inventor and botanist whose discovery and patenting of the process of "puffing" cereal grains earned him a place in history and in popular culture. |
1908 - 1996
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Carolle Anderson Carolle Elizabeth Anderson was an American educator and community leader with a Ph.D. from Cornell University. |
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1897 - 1969 
Edgar Anderson Edgar Anderson was an American botanist, horticulturist, geneticist, and ethnobotanist whose contributions to science included new methods of commercial corn hybridization. |
1932 - 2001 
Edward Anderson Edward F. Anderson was an American botanist, ethnobotanist, educator and plant collector with a specialty in cacti, whose main collecting activity was in Mexico. |
1866 - 1891 
Frederick Anderson Frederick W. Anderson was an English-American botanist and mycologist known for his collections in Montana. |
1874 - 1953 
Jacob Anderson Jacob Peter Anderson was an American florist, horticulturist and plant collector in Alaska and adjacent Canada. |
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1912 - 2007 
Lewis Anderson Lewis E. Anderson was an American bryologist, cytologist, and educator regarded as an expert in North American mosses. |
1900 - 1949 
William Anderson William A. Anderson was an American botanist and expert on Appalachian ferns, and was curator at the herbarium of the University of Iowa. |
1942 - 2013 
William Anderson William Anderson was an American botanist who specialized in the systematics and floristics of the Malpighiaceae |
1885 - 1984 
Flora Anderson-Haas Flora Anderson-Haas was an American botanist, plant anatomist, and educator on the faculty of Wellesley College, Indiana University, Arkansas State Teachers College, and Union University. |
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1878 - 1961 
Albert Andrews A. Leroy Andrews was an American linguist and bryologist on the faculty of Cornell University, and editor of The Bryologist. |
1870 - 1940 
Frank Andrews Frank M. Andrews was an American plant physiologist and educator who served on the faculty of Indiana University for most of his professional career. |
1794 - 1830 
Henry Andrews Henry Cranke Andrews was a British botanical illustrator and plant taxonomist and his work heaths is particularly well known. |
1910 - 2002 
Henry N. Andrews Henry N. Andrews was an American paleobotanist and specializing in the Devonian and Carboniferous periods, and who was on the faculty of Washington University in St. Louis. |
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1801 - 1876 
James Andrews James Andrews was an English botanical painter and draughtsman best known for his flower paintings. His illustrations are featured in nature writer Sarah Bowdich Lee's book Trees, Plants, and Flowers: Their Beauties, Uses, and Influences (1854). |
1809 - 1893 
Seth Andrews Seth Lathrop Andrews was an American physician who served as a Protestant missionary in Hawaii and whose 1830s plant collections are deposited at Cornell University (BH). |
1941 - 2020 
Richard E. Andrus Richard E. Andrus was an American bryologist, educator, and environmentalist on the faculty of Binghamton University, who integrated concepts of sustainable agriculture into his teaching of environmental science. |
1867 - 1949 
Elmer Applegate Elmer Applegate was an amateur American botanist and plant explorer, who made many botanical discoveries primarily in Oregon and California when the area was not well-explored. |
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1879 - 1960 
Agnes Arber Agnes Arber was a celebrated plant anatomist and paleobotanist who also had a strong interest in the study of herbals. |
1870 - 1918 
Edward Arber Edward Newell Arber was a British paleobotanist, although less well-known than his paleobotanical spouse, Agnes Arber. |
1895 - 1986
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George E. Arceneaux George Arceneaux was an American plant breeder and former head of the sugar cane breeding program at USDA. He is largely credited with restoring the Louisiana sugar cane industry by developing improved varieties |
1894 - 1973 
William Archer William Archer was a Mexican-American botanist, plant pathologist, and prospector of medicinal plants. |
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1914 - 2007 
Eily Archibald Eily Archibald was a South African botanist who named several plant species of the veld grassland, and was the author and illustrator of The Eastern Cape Veld Flowers, a valuable resource for that flora. |
1929 - 2022 
George W. Argus George Argus was a renowned scholar of the genus Salix. Among his many works is the treatment for the Salicaceae in the Flora of North America (2009), also serving for many years as editor for FNA. |
1848 - 1901 
William Armit William Armit was a Belgian-Australian naturalist, soldier, policeman, journalist, and government agent who collected plants in Australia and New Guinea. |
1865 - 1961
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Eleonora Armitage Eleonora Armitage was a British bryologist and also had interests in the genus Iris and collected widely in Europe and the Caribbean region |
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1867 - 1944 
Margaret Armstrong Margaret Armstrong was a prominent American designer and illustrator who worked in the botanical field, and published field guides to plants of the American west. |
1848 - 1932 
Hampus Arnell Hampus Wilhelm Arnell was a Swedish bryologist, pteridologist, and schoolteacher who was a Privat-Docent at University of Uppsala. |
1901 - 1977 
Chester Arnold Chester Arthur Arnold was an American paleobotanist who earned B.S. and Ph.D. degrees at Cornell University, where he studied with Loren Petry and specialized in Pennsylvanian and Devonian plant fossils. He was a professor and curator of the paleobotanical collection at the University of Michigan. |
1856 - 1919
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George Arnold George Arnold was a Cornell-educated horticulturalist associated with the seed farm and trial grounds at James Vick's Sons in Spencerport, New York. |
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1858 - 1933
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Isabel Arnold Isabel Arnold was an American educator whose plant collections were made mostly in the Upper Chemung Valley, Steuben County, New York. |
1873 - 1955 
Mary Arnold Mary Daisy Arnold was a botanical illustrator who worked for the United States Department of Agriculture and is one of the top three contributors to the USDA's Pomological Watercolor Collection. |
1850 - 1942 
Joseph Arthur Joseph Charles Arthur was an American mycologist and plant pathologist with expertise in the rust fungi. Arthur received the first D.Sc. ever granted by Cornell University. |
1889 - 1957 
Ernst Artschwager Ernst Artschwager was a German-American botanist and plant anatomist who received his Ph.D. from Cornell University in 1918. |
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1916 - 2006
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George Asai George N. Asai was the American-born son of Japanese immigrants to the United States, who completed his B.S. and Ph.D. in Horticulture at Cornell University and worked for many years as a gardener for the New York City Housing Authority. |
1834 - 1913 
Paul Ascherson Paul Frederich Ascherson was a German botanist and historian with expertise in the flora of Central Europe and North Africa. |
1928 - 2019 
Sidney Ash Sidney Roy Ash was an American paleobotanist who specialized in Triassic and Jurassic fossil plants |
1904 - 1992 
Eric Ashby Sir Eric Ashby was an English plant physiologist and university administrator at Queen's University, Belfast, and University of Cambridge, as well as a Member of the House of Lords. |
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1872 - 1932 
William Ashe William Willard Ashe was an American forester and botanist who earned his M.S. at Cornell University, and who named hundreds of new plant species in his lifetime. |
1888 - 1974 
Erik Asplund Erik Asplund was a Swedish botanist and plant collector centered at the University of Uppsala and the Swedish Royal Museum of Natural History. |
1921 - 1989
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Earlene Atchison Earlene Atchison was an American cytotaxonomist who worked mostly with Fabaceae (bean family) and tropical trees. |
1799 - 1871 
Anna Atkins Anna Atkins was an English botanist and photographer who in 1843 self-published the first book to contain photographic images, Photographs of British Algae: Cyanotype Impressions. |
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1854 - 1918 
George Atkinson George F. Atkinson was an American mycologist and plant pathologist at Cornell University whose students included K.M. Wiegand, S.H. Burnham, and E.J. Durand. |
1812 - 1878 
Elizabeth Atwater Elizabeth Atwater was a self-taught plant collector who corresponded with leading botanists of her time. Many of her specimens, donated to the Chicago Academy of Science, were lost in the Great Chicago Fire of 1871. |
1854 - 1928 
Charles Atwood Charles Atwood, American physician and botanist, earned a B.S. in botany from Cornell University. He pursued a career as a physician while maintaining his interest in botany, and through his association with the Finger Lakes State Park Commission helped to establish the Fillmore Glen State Park in Moravia, New York. |