Peter Nielsen (28 July 1829 – 30 September 1897) was a Danish botanist and plant pathologist. [1]

He was born at a farm in Vonsbæk parish in the Duchy of Schleswig. He graduated in 1857 from Jelling Statsseminarium in Vejle. He was employed at Flakkebjerg Institute from 1857-1859. In 1859, he became a school teacher at Ørslev in Zealand, where he studied the local flora. He was particularly interested in plants useful to agriculture and in plant pathogens. He was a prolific writer on these topics. He undertook meticulous studies of rust fungi.[2][3] [4]

He was the first to describe the host alternation of Puccinia poarum between grasses and Tussilago farfara.[5]

References

  1. ↑ Index Fungorum Authors of Fungal Names
  2. ↑ "Nielsen, Peter, dansk landøkonomisk Forsøgsleder". Salmonsens konversationsleksikon. Retrieved January 1, 2020.
  3. ↑ Tage Kampmann. "Jelling Statsseminarium". Den Store Danske, Gyldendal. Retrieved January 1, 2020.
  4. ↑ “Peter Nielsen”, pp. 221-223 in Warming, Eug. (1881). "Den danske botaniske Literatur fra de ældste Tider til 1880" [Danish botanical literature from ancient times to 1880]. Botanisk Tidsskrift (in Danish). 12: 42–217.
  5. ↑ Nielsen, P. (1877). "Bemærkninger om nogle Rustarter, navnlig om en genetisk Forbindelse mellem Aecidium tussilaginis Pers. og Puccinia poarum n. sp" [Notes on some rust species, in particular the genetic unity of Aecidium tussilaginis Pers. and Puccinia poarum n. sp.]. Botanisk Tidsskrift (in Danish). 10: 26–42.
  6. ↑ International Plant Names Index.  Nielsen.
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