Anders Sandøe Ørsted, also written as Anders Sandoe Oersted or Anders Sandö Örsted (21 June 1816 – 3 September 1872), was a Danish botanist, mycologist, zoologist and marine biologist. He was the nephew of physicist Hans Christian Ørsted and of politician Anders Sandøe Ørsted.Spärck, R. (1932) Anders Sandöe Örsted, pp. 128-130 in: Meisen, V. Prominent Danish Scientists through the Ages. University Library of Copenhagen 450th Anniversary. Levin & Munksgaard, Copenhagen.
Early life and education Ørsted was born on 21 June 1816 in Rudkøbing on the island of Langeland, the son of merchant Jacob Albert Ørsted (1780–1829) and wife Petronelle Catherine Ørsted, née Bang (1781–1845). From 1820, he lived with his uncle Anders Sandøe Ørsted, who treated him as his own son.
Career In his early career, Ørsted published on Danish and Arctic nematodesØrsted, A.S. (1843) Grønlands Annulata dorsibranchiata. Kongelige Danske Videnskabernes Selskab, Naturhistorisk- mathematiske Afhandliger 10: 153-216.Ørsted, A.S. (1843) Annulatorum Danicorum Conspectus. I. Maricolæ. Hafniæ, Sumtibus Librariæ Wahlianæ, 1843. and on the zonation of marine algae in Øresund.Ørsted, A.S. (1844) De regionibus marinis: Elementa Topographiae Historiconaturalis Freti Oeresund. Respondente ornatissimo E. Petit; publice defendere studebit A.S. Ørsted. J.C. Scharling, Copenhagen.
Between 1845 and 1848, he travelled extensively in Central America and the Caribbean, and published numerous papers on the flora, concentrating on the plant families Acanthaceae and Fagaceae.Ørsted, A.S. (1861) Myrsineae centroamericanæ et mexicanæ. Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn.Ørsted, A.S. (1858) Gesneraceæ centroamericanæ. Kongelige Danske Videnskabernes Selskabs Skrifter - Naturvidenskabelig og Mathematisk Afdeling, 5. Rk., vol. 5.Ørsted, A.S. (1855) Mexicos og Centralamerikas Acanthaceer. Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn 1854.Ørsted, A.S. (1852) Centralamerikas Rubiaceæ (Bestemmelser og Beskrivelser mestendeels af G. Bentham). Journal of the Linnean Society 1852.Ørsted, A.S. (1867) Recherches sur la classification des Chênes. Mémoires de la Societé d’Histoire Naturelle de Copenhague 1867. One of his better known publications is L'Amérique Centrale.Ørsted, A.S. (1863) L'Amérique Centrale: Recherches sur sa flora et sa géographie physique . Copenhagen, Bianco Luno
He was appointed professor of botany at the University of Copenhagen in 1851, a post he held until 1862. He was succeeded by Ferdinand Didrichsen.
Ørsted's studies of what has since been known as juniper-pear rust showed that this fungus annually switches between two hosts; Juniperus sabina is the primary (telial) host, and pear, Pyrus communis, is the secondary (aecial) host. He thus was the first to discover that some plant-parasitic fungi are heteroecious.Ørsted, A.S. (1863) Om Sygdomme hos Planterne, som foraarsages af Snyltesvampe, navnlig om Rust og Brand og om Midlerne til deres Forebyggelse. Copenhagen. These studies were continued on other Gymnosporangium species.Ørsted, A.S. (1866) Indpodningsforsøg, hvorved det bevises, at der finder et Generationsskifte Sted mellem den paa Enens Grene snyltende Bævrerust (Podisoma juniperinum) og den par Rønnens Blade voxende Hornrust (Roestelia cornuta). Resumé: Nouvelles observations sur un champignon parasite etc. Bulletin de l'Académie Royale des Sciences et des Lettres de Danemark 1866.
The orchid genus Oerstedella Reichenbach f., and Dieffenbachia oerstedii are named after him. Also in Kataloge der oberösterreichischen Landesmuseen Neue Serie volume 80.
He is the author of several hundred plant names still in use.IPNI list of plant names with Oerst. as author.
References
External links
Københavns Universitet: Anders Sandöe Örsted View digitized titles by Anders Sandøe Ørsted in Botanicus.org