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- روبرت المر هاربر (بالإنجليزية: Robert Almer Harper) (12 مايو 1946 21 يناير 1862). كان عالم نبات أمريكي . (ar)
- Robert Almer Harper (* 21. Januar 1862 in Le Claire, Iowa; † 12. Mai 1946 in Bedford, Virginia) war ein US-amerikanischer Botaniker am (in Lake Forest, Illinois), an der University of Wisconsin, Madison und an der Columbia University. Sein botanisches Kürzel lautet R.A.Harper. Harper erwarb 1886 am Oberlin College einen Bachelor und 1891 ebendort einen Master. Er erhielt direkt im Anschluss am Lake Forest College eine Professur für Botanik, die er für Studien bei Oscar Brefeld an der Universität Münster und bei Eduard Strasburger an der Universität Bonn unterbrach, wo er 1896 einen Dr. phil. erwarb. 1898 wurde Harper Professor an der University of Wisconsin, 1911 an der Columbia University. In New York engagierte er sich in der wissenschaftlichen Leitung des New York Botanical Garden, dem er auch kurz vor seinem Tod seine Sammlung von 15.000 botanischen Drucken vermachte. Robert A. Harper identifizierte Einzelheiten in der Fortpflanzung und Entwicklung der Sporen bei Schlauchpilzen (siehe Schlauchpilze#Ablauf der sexuellen Sporenbildung). Er konnte wichtige Erkenntnisse zur Sporenbildung beim Echten Mehltau gewinnen. Er erkannte, dass die zytoplasmatische Teilung, die zu acht gleichartigen Sporen führt, vom Zellkern ausgeht. Er befasste sich außerdem mit Phytopathologie und der Entwicklung von Strukturmerkmalen von Pilzen. 1906 wurde Harper als Fellow in die American Association for the Advancement of Science gewählt, 1909 als Mitglied in die American Philosophical Society, 1911 sowohl in die National Academy of Sciences als auch in die American Academy of Arts and Sciences, sowie 1933 in die Leopoldina. 1916 war er Präsident der . Harper hielt Ehrendoktorate der Columbia University und der University of Pennsylvania. Robert Almer Harper war seit 1899 mit Alice Jean McQueen verheiratet, die 1909 starb. 1918 heiratete er Helen Sherman. Aus seiner zweiten Ehe stammte ein Sohn. (de)
- Robert Almer Harper (January 21, 1862 – May 12, 1946) was an American botanist. The younger brother of Edward Thompson Harper, Robert was born in Le Claire, Iowa to Congressional Minister Almer Harper and Eunice Thompson. The family moved to Port Byron, Illinois in 1863, where Robert attended local schools. He matriculated to Oberlin College, his father's alma mater, where he graduated with a A. B. in 1886. During the Fall of 1886 he performed graduate studies at Johns Hopkins University, then he was professor of Greek and Latin at Gates College in Neligh, Nebraska during 1886–88. In 1889–91 he was an instructor at the Lake Forest Academy. After receiving his A. M. degree from Oberlin, he was appointed professor of botany and geology in 1891–98 at Lake Forest University. During the period 1894 to 1896, took a sabbatical to attend graduate school at the University of Bonn in Germany where he studied cytology and mycology; he was awarded a Ph.D. in 1896. Harper became Professor of Botany at the University of Wisconsin in 1898, where he taught until 1911. On June 25, 1899, he was married to Alice Jean McQueen; she died in 1909. After a stint as visiting professor at the University of California in 1911, he was named Torrey Professor of Botany at Columbia University, becoming head of the botany department. The same year, Professor Harper was named a fellow of the American Academy of Arts and Sciences. A member of the Torrey Botanical Club since 1911, he was named president during 1914–16. He served as president of the Botanical Society of America in 1916. Harper remarried in 1918 to Helen Sherman; they had one son, who became a farmer in Bedford, Virginia. Beginning in 1918, he served as head of the board of scientific directors for the New York Botanical Garden. He was named professor emeritus in 1930, then in 1938 he retired to a farm in Bedford. During his career he was awarded honorary doctorates from Columbia University and the University of Pennsylvania. (en)
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- 8555 (xsd:nonNegativeInteger)
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- Oberlin College (en)
- University of Bonn (en)
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- Eunice Thompson (en)
- Almer Sexton Harper (en)
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- (en)
- Helen Sherman (en)
- Alice Jean McQueen (en)
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- روبرت المر هاربر (بالإنجليزية: Robert Almer Harper) (12 مايو 1946 21 يناير 1862). كان عالم نبات أمريكي . (ar)
- Robert Almer Harper (* 21. Januar 1862 in Le Claire, Iowa; † 12. Mai 1946 in Bedford, Virginia) war ein US-amerikanischer Botaniker am (in Lake Forest, Illinois), an der University of Wisconsin, Madison und an der Columbia University. Sein botanisches Kürzel lautet R.A.Harper. Robert Almer Harper war seit 1899 mit Alice Jean McQueen verheiratet, die 1909 starb. 1918 heiratete er Helen Sherman. Aus seiner zweiten Ehe stammte ein Sohn. (de)
- Robert Almer Harper (January 21, 1862 – May 12, 1946) was an American botanist. The younger brother of Edward Thompson Harper, Robert was born in Le Claire, Iowa to Congressional Minister Almer Harper and Eunice Thompson. The family moved to Port Byron, Illinois in 1863, where Robert attended local schools. He matriculated to Oberlin College, his father's alma mater, where he graduated with a A. B. in 1886. During the Fall of 1886 he performed graduate studies at Johns Hopkins University, then he was professor of Greek and Latin at Gates College in Neligh, Nebraska during 1886–88. (en)
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- روبرت المر هاربر (ar)
- Robert A. Harper (de)
- Robert Almer Harper (en)
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