Esprit Requien (6 May 1788,

Avignon Avignon (, ; ; oc, Avinhon, label=Provençal or , ; la, Avenio) is the prefecture of the Vaucluse department in the Provence-Alpes-Côte d'Azur region of Southeastern France. Located on the left bank of the river Rhône, the commune ha ...

– 30 May 1851,

Bonifacio, Corse-du-Sud Bonifacio (, , ; co, Bunifaziu , , or ; lij, label= Bonifacino, Bunifazziu; sdn, Bunifaciu) is a commune in the southern tip of the island of Corsica, in the French department of Corse-du-Sud. Bonifacio is the setting of Guy de Maupassan ...

) was a French naturalist, who made contributions in the fields of

conchology Conchology () is the study of mollusc shells. Conchology is one aspect of malacology, the study of molluscs; however, malacology is the study of molluscs as whole organisms, whereas conchology is confined to the study of their shells. It includ ...

paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fos ...

and especially

botany Botany, also called plant science (or plant sciences), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "bot ...

. From the age of 18, he was associated with the

botanical garden A botanical garden or botanic gardenThe terms ''botanic'' and ''botanical'' and ''garden'' or ''gardens'' are used more-or-less interchangeably, although the word ''botanic'' is generally reserved for the earlier, more traditional gardens, an ...

in the city of

. He performed extensive studies of flora native to Corsica and in the environs of

Mont Ventoux Mont Ventoux (; oc, Ventor, label=Provençal ) is a mountain in the Provence region of southern France, located some northeast of Carpentras, Vaucluse. On the north side, the mountain borders the department of Drôme. At , it is the highest ...

. During his lifetime, he amassed an

herbarium A herbarium (plural: herbaria) is a collection of preserved plant specimens and associated data used for scientific study. The specimens may be whole plants or plant parts; these will usually be in dried form mounted on a sheet of paper (calle ...

of 300,000 specimens.Prosopo
Les sociétés savantes In the fields of conchology and palaeontology, he conducted collecting expeditions to the

Pyrenees The Pyrenees (; es, Pirineos ; french: Pyrénées ; ca, Pirineu ; eu, Pirinioak ; oc, Pirenèus ; an, Pirineus) is a mountain range straddling the border of France and Spain. It extends nearly from its union with the Cantabrian Mountains to ...

Catalonia Catalonia (; ca, Catalunya ; Aranese Occitan: ''Catalonha'' ; es, Cataluña ) is an autonomous community of Spain, designated as a '' nationality'' by its Statute of Autonomy. Most of the territory (except the Val d'Aran) lies on the no ...

and

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

. The natural history museum, Musée Requien, in Avignon is named in his honor. He is the taxonomic authority of a monotypic plant genus ''

Helxine Helxine may refer to: * a genus of plants in the nettle family Urticaceae containing a single species, ''Helxine soleirolii'', a synonym of '' Soleirolia soleirolii'' * a genus of plants in the knotweed family Polygonaceae, including the followin ...

'', now treated as a synonym of Soleirolia soleirolii, in the nettle family

Urticaceae The Urticaceae are a family, the nettle family, of flowering plants. The family name comes from the genus '' Urtica''. The Urticaceae include a number of well-known and useful plants, including nettles in the genus ''Urtica'', ramie (''Boehmer ...

. The genera of lichenized

fungi A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified ...

, '' Requienella'' (author

Jean-Henri Fabre Jean-Henri Casimir Fabre (21 December 1823 – 11 October 1915) was a French naturalist, entomologist, and author known for the lively style of his popular books on the lives of insects. Biography Fabre was born on 21 December 1823 in Saint-L ...

) and the flowering plant '' Requienia'' (author

Augustin Pyramus de Candolle Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle ...

) are named after him, as are plants with the specific and subspecific epithets of ''requienii''. The

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific speciali ...

lists 57 marine species names by Requien, most of which have become synonyms.

Written works

* ''Observations sur quelques plantes rares ou nouvelles de la flore française'', 1825 - Observations on some rare and new botanical species found in France. * ''Catalogue des végétaux ligneux qui croissent naturellement en Corse'', 1852 - Catalogue of

woody plants A woody plant is a plant that produces wood as its structural tissue and thus has a hard stem. In cold climates, woody plants further survive winter or dry season above ground, as opposite to herbaceous plants that die back to the ground until s ...

native to Corsica. * ''Bibliographie des journaux publiés à Avignon et dans le département de Vaucluse'', 1837 - Bibliography of papers published in Avignon and in the department of

Vaucluse Vaucluse (; oc, Vauclusa, label=Provençal or ) is a department in the southeastern French region of Provence-Alpes-Côte d'Azur. It had a population of 561,469 as of 2019.seashells.OCLC Classify
(publications)

References

External links

Musée Requien
{{DEFAULTSORT:Requien, Esprit 1788 births 1851 deaths French naturalists 19th-century French botanists Conchologists People from Avignon