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Louis-marie Aubert Du Petit-thouars




Louis-Marie Aubert du Petit-Thouars (Bournois, 5 November 1758 – Paris, 12 May 1831 ) was an eminent French Botanist .


INTRODUCTION

He was from an aristocrat family of the region of Anjou , where he grew up in the castle of Boumois, near Saumur . He studied at the military academy Prytanée National Militaire of La Flèche . In 1792, after an imprisonment of two years during the French Revolution , he was exiled to Madagascar and the nearby islands such as La Réunion (then called Bourbon). He started collecting many plant specimens on Madagascar, Mauritius and La Réunion.

Ten years later he was able to return to France with a collection of about 2000 plants. Most of his collection went to the ''Muséum de Paris'', while some species ended up at Kew .

He was elected member of the prestigious ''Académie des Sciences'' on 10 April 1820 .

Du Petit Thouars is remembered as the author of the book “Histoire des végétaux recueillis dans les îles de France, de Bourbon et de Madagascar.” (usually abbreviated in botanic literature as ''Orch. Iles Afr''), illustrated by many beautiful drawings. Other books followed : " ''Mélanges de botanique et de voyages'' " and " ''Histoire particulière des plantes orchidées recueillies dans les trois îles australes de France, de Bourbon et de Madagascar'' " ( L'île de France is the present island of Mauritius and L'île de Bourbon is the present La Réunion ). He did pioneering botanical work by his descriptions of orchids from this region : 52 species from Mauritius and 55 from La Réunion.


ORCHID GENERA NAMED BY THOUARS

  • ''Angorchis'' Thouars 1809.(now : '' Angraecum '' Bory, 1804).

  • '' Bulbophyllum '' Thouars 1822, describing 17 species.

  • ''Centrosis'' Thouars, 1822. (now : '' Calanthe '' R.Br., 1821).)

  • ''Corymborkis'' Thouars 1809 (now : '' Corymborchis '' Thou. ex Blume 1855)

  • '' Cynorkis '' Thouars 1809

  • ''Dendrorkis'' Thouars, 1809 (now : '' Polystachya '' Hook., 1824)..

  • '' Gastrorchis '' Thouars 1809

  • '' Graphorkis '' Thouars 1809 (now '' Phaius '' Lour)

  • '' Hederorkis '' Thouars 1809

  • ''Leptorkis'' Thouars ex Kuntze, 1891 (now : '' Liparis '' Rich.,1817).

  • ''Phyllorkis'' Thouars 1822 (now : '' Bulbophyllum '' Thouars, 1822).



ORCHID SPECIES NAMED BY HIM, BESIDES THE ONES IN THE ABOVE NAMED GENERA

  • ''Cryptopus elatus'' Lindl. 1824, originally described as ''Angraecum elatum'' by Thouars (collected from the island Mauritius)

  • ''Mystacidium gracile'' {Link without Title} Finet 1907




PLANTS NAMED IN HIS HONOR

  • ''Actinoschoenus thouarsii'' (Kunth) Benth. (family Cyperaceae)

  • ''Alafia thouarsii'' Roem. & Schult.1819 (family Apocynaceae)

  • ''Arthrostylis thouarsii'' Kunth (family Cyperaceae)

  • ''Bambusa thouarsii var. atter'' (now : ''Gigantochloa atter'' (Hassk.) Kurz 1864)(family Poaceae)

  • ''Cirrhopetalum thouarsii'' John Lindley 1830. (type orchid of the genus)

  • ''Corymborchis thouarsii'' Blume = Corymbis corymbosa

  • ''Cycas thouarsii'' R. Br. ex Gaudich (1829), a Madagascan Cycad (family: Cycadaceae)

  • ''Dilobeia thouarsii'' Roem. & Schult. 1818 (family Pteridaceae)

  • ''Drypetes thouarsii'' (family Euphorbiaceae)

  • ''Fimbristylis thouarsii'' (Kunth) Merr. (family Cyperaceae)

  • ''Jasminocereus thouarsii'' (F.A.C.Weber) Backeb. (family Cactaceae)

  • ''Lindernia thouarsii'', (family Scrophulariaceae)

  • ''Moyinga thouarsii'' (common name : Elephant leg tree)

  • ''Protorhus thouarsii'' Engl 1881 (family Anacardiaceae)

  • ''Strychnopsis thouarsii'' Baill. (family Menispermaceae)

  • ''Torenia thouarsii'' (Cham. & Schltdl.) Kuntze (family Scrophulariaceae)

  • ''Typhonodorum lindleyanum'' thouarsii (family Araceae)

  • ''Uapaca thouarsii'' (family Euphorbiaceae)

  • ''Voacanga thouarsii'' Roem. & Schult. 1819 (family Apocynaceae)

  • ''Vonitra thouarsii'' (family Arecaceae)



OTHER SPECIES NAMED AFTER HIM

  • ''Eucidaris thouarsii'' Valenciennes (common name : Slate Pencil Urchin) (Echinodermata)

  • ''Flabellum thouarsii'' (a group of scleractinian corals from Antarctica)