Léon Guignard, Date of Birth, Place of Birth, Date of Death

    

Léon Guignard

Date of Birth: 13-Apr-1852

Place of Birth: Mont-sous-Vaudrey, Bourgogne-Franche-Comté, France

Date of Death: 07-Mar-1928

Profession: pharmacist, botanist

Nationality: France

Zodiac Sign: Aries


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About Léon Guignard

  • Jean Louis Léon Guignard (13 April 1852 in Mont-sous-Vaudrey – 7 March 1928 in Paris) was a French pharmacist and botanist. In 1882 he received his doctorate of sciences in Paris, and afterwards served as a professor of botany at the Faculty of Sciences of Lyon.
  • In 1887 he succeeded Gaspard Adolphe Chatin as chair of botany at the Ecole Supérieure de Pharmacie in Paris.
  • From 1900 to 1910 he was dean to the faculty of pharmacy.In 1899 he was named president of the Académie des sciences.
  • He was also a member of the Société de biologie (from 1888), the Académie de Médecine (from 1897) and the Académie d'Agriculture (from 1915).
  • In 1920 he was chosen a commander in the Legion d'Honneur. Along with Russian biologist Sergei Navashin, he is credited as the co-discoverer of double fertilization in flowering plants.
  • The two men made their discoveries independent of each other, Navashin in 1898 and Guignard in 1899.
  • He also introduced a new method for detecting the presence of hydrocyanic acid in plants.
  • In addition, he conducted significant research on the origin and structure of integuments for a large number of seeds.

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