Jacques-Louis Hénon (31 May 1802 in

Lyon Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...

– 28 March 1872 in

Montpellier Montpellier (; ) is a city in southern France near the Mediterranean Sea. One of the largest urban centres in the region of Occitania (administrative region), Occitania, Montpellier is the prefecture of the Departments of France, department of ...

) was a French republican politician. He was member of the

Corps législatif The was a part of the French legislature during the French Revolution and beyond. It is also the generic French term used to refer to any legislative body. History Under Napoleon's Consulate, the Constitution of the Year VIII (1799) set up ...

in 1852 and from 1857 to 1869. He was the mayor of Lyon from 1870 to 1872. Earlier in his career he served as a professor at the École vétérinaire de Lyon (1823–1824) and at the

École nationale vétérinaire d'Alfort The National veterinary school of Alfort ( or ''ENVA'') is a French public institution of scientific research and higher education in veterinary medicine, located in Maisons-Alfort, Val-de-Marne, close to Paris. It is operated under the superv ...

(1825–1833). He later studied medicine in Montpellier and

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...

, submitting his graduate thesis in 1841. In 1848–49 he was a substitute instructor of

botany Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

at the ''École préparatoire de médecine et pharmacie de Lyon''.Henon, Jacques Louis
Sociétés savantes de France On 4 September 1870 he proclaimed the

French Third Republic The French Third Republic (, sometimes written as ) was the system of government adopted in France from 4 September 1870, when the Second French Empire collapsed during the Franco-Prussian War, until 10 July 1940, after the Fall of France durin ...

in the city hall of Lyon. The Rue Jacques Louis Hénon (Lyon, 4ème arrondissement) is named in his honor. Also, in 1849,

Alfred Moquin-Tandon Christian Horace Benedict Alfred Moquin-Tandon (7 May 1804 – 15 April 1863) was a French Natural history, naturalist and doctor. Moquin-Tandon was professor of zoology at Marseille from 1829 until 1833, when he was appointed professor of botany ...

named a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s belonging to the family

Amaranthaceae Amaranthaceae ( ) is a family of flowering plants commonly known as the amaranth family, in reference to its type genus '' Amaranthus''. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, maki ...

, from Madagascar, '' Henonia'' also in his honor. Also '' Henoonia'', a

monotypic genus In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...

s belonging to the family

Solanaceae Solanaceae (), commonly known as the nightshades, is a family of flowering plants in the order Solanales. It contains approximately 2,700 species, several of which are used as agricultural crops, medicinal plants, and ornamental plants. Many me ...

from Cuba is also thought to be named after him.

Selected published works

* ''Excursion au Mont-Pilat''. Lyon, L. Boitel, (1835) – Excursion to

Mont Pilat Mont Pilat or the Pilat massif is a mountainous area in the east of the Massif Central of France. Name The origin of the name "Pilat" is uncertain. The word may have a Latin origin (''Mons Pileatus''). Another legend says that the body of Ponti ...

. * ''Notice sur l'oxalide de Deppe'', Lyon : Barret, (1838) – Note on '' Oxalis deppei''. * ''De l'Influence des végétaux sur l'eau, et de quelques boissons aqueuses fournies par les tiges et les feuilles des plantes'', (1841). * ''Notice sur J.C. Favre, médecin vétérinaire''. Lyon, Nigon, (1845). * ''Flore et pomone lyonnaises, ou Dessins et descriptions des fleurs et des fruits obtenus ou introduits par les horticulteurs du département du Rhône'', (1847). * ''Notice sur le Jardin de la marine royale à Toulon'', (1847). * ''Promenade à la recherche du "Narcissus reflexus" de Loiseleur''. Paris : impr. de E. Martinet, (s. d.) Extrait du "Bulletin général de la Société botanique de France". Séance du 10 avril 1863, (1863) – On research involving ''Narcissus reflexus'' of Loiseleur.IDREF.fr
bibliography

References

1802 births 1872 deaths French republicans Members of the 1st Corps législatif of the Second French Empire Members of the 2nd Corps législatif of the Second French Empire Members of the 3rd Corps législatif of the Second French Empire Mayors of Lyon 19th-century French botanists {{France-mayor-stub