Theodor Hartig

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Theodor Hartig
Theodor Hartig
Theodor Hartig, from the Book "Biographien bedeutender hessischer Forstleute", Wiesbaden und Frankfurt am Main 1990, p. 271
Born 21 February 1805
Died 26 March 1880(1880-03-26) (aged 75)
Nationality German
Fields Forestry science, botany, zoology
Known for Sieve tube elements
Influences Georg Ludwig Hartig
Influenced Robert Hartig
Author abbrev. (botany) Hartig
Author abbrev. (zoology) Hartig

Theodor Hartig (21 February 1805 – 26 March 1880) was a German forestry biologist and botanist.


Hartig was born in Dillenburg. He was educated in Berlin (1824–1827), and was successively lecturer and professor of forestry at the University of Berlin (1831–1838) and at the Carolinum, Braunschweig.[1]

Hartig was the first to discover and name the sieve tube element cells (as Siebfasern - sieve fibres and Siebröhren - sieve tubes) in 1837. His zoologist author abbreviation is Hartig. He described many gall wasp species.

He died in Braunschweig.


In collaboration with his father, Georg Ludwig Hartig, he published the work entitled, Forstliches und naturwissenschaftliches Konversationslexikon. The eleventh edition of his father's Lehrbuch für Förster, the later reprints of which he had revised, was published in 1877.


He was the son of Georg Ludwig Hartig (1764–1837), a German forester. His son Robert (1839–1901) was a forestry scientist and mycologist and described the Hartig net, a hyphal network that extends into the plant root.


  1. ^ Wikisource-logo.svg This article incorporates text from a publication now in the public domainGilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "Hartig, Theodor". New International Encyclopedia (1st ed.). New York: Dodd, Mead. 
  2. ^ IPNI.  Hartig.