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Gray’s major theoretical contributions to botanical geography were, almost by definition, inextricable from questions of species origin. As early as 1840, Gray noted similarities between the floras of eastern Asia and eastern North America, despite their vast separation by a continent and an ocean. This phenomenon, which would become known as ...
modifier - modifier le code - modifier Wikidata. Asa Gray, né le 18 novembre 1810 et mort le 30 janvier 1888, est un botaniste américain, disciple et collaborateur de John Torrey, qui apporta des informations utiles à Charles Darwin. Il joua un rôle très important dans l'amélioration de la connaissance de la taxinomie des plantes nord ...
Asa Gray. Asa Gray (* 18. November 1810 in Paris, New York; † 30. Januar 1888 in Cambridge, Massachusetts) war ein US-amerikanischer Botaniker. Sein offizielles botanisches Autorenkürzel lautet „ A.Gray “.
Asa Gray blazed many a trail in American botany. For his diligence, the master botanist has been immortalized by named places and awards, including the Gray Herbarium at Harvard and the American Society of Plant Taxonomists’ highest honor, the Asa Gray Award, established in 1984. It honors a living botanist for career achievements.
10 de nov. de 2018 · Asa Gray was born on November 18, 1810 (died in 1888), in Oneida County, New York. With seven younger siblings, Gray grew up working on the family’s farm and becoming an avid naturalist, especially interested in minerals. His interest in botany began while at school, causing his father to enroll him in a local medical school.
27 de mai. de 2014 · Izquierda: Asa Gray. Derecha: Louis Agassiz. No obstante, a principios de la década de 1850 la relación entre los dos empezó a torcerse. En un país abocado a la guerra civil en el que las cuestiones sobre la esclavitud y la raza estaban a la orden del día, sus posturas no podían ser más contrarias: Gray abogaba por una visión que conjugaba sus creencias religiosas con los recientes ...
Asa Gray was born on November 18, 1810, in Sauquoit Valley, in the township of Paris, Oneida county, N. Y. His ancestors were of Scotch-Irish descent who had emigrated to Sauquoit from Mas-sachusetts and Vermont. He was the oldest of the eight children of Moses Wiley Gray and his wife, Roxana Howard Gray. In 1810
