Peter Nielsen (botanist)

Peter Nielsen (1829–1897^[1]) was a Danish botanist and plant pathologist. He was born at a farm in Vonsbæk parish in the Duchy of Schleswig. 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] He was the first to describe the host alternation of Puccinia poarum between grasses and Tussilago farfara.^[3]

References

1. Index Fungorum Authors of Fungal Names
2. “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.
3. 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.
4. "Author Query for 'Nielsen'". International Plant Names Index.