Carl Frederik Albert Christensen

Carl Frederik Albert Christensen (16 January 1872 – 24 November 1942) was a Danish systematic botanist. He graduated in natural history from the University of Copenhagen under professor Eugenius Warming. He was then a school teacher in Copenhagen, and later superintendent at the Botanical Museum. He was a specialist in ferns and published a catalogue of the World's Pteridophytes, Index Filicum. In addition, he authored a three-volume work on the history of botany in Denmark.

Selected scientific works
  • Christensen, Carl (1905–06) Index Filicum. 744 s. Index Filicum Supplementum I-III (1913–17). Reprint 1973 by Koeltz Antiquariat.
  • Christensen, Carl (1924-1926) Den danske botaniks historie med tilhørende Bibliografi. København, H. Hagerups Forlag. Three vols. 680 s.
gollark: Bold of you to only accept the reals as "numbers". Complex numbers have rights too.
gollark: In what way?
gollark: Yes, I'm aware.
gollark: How is this even a debate? Refusing to describe things doesn't make them not exist or be widely accepted or whatever. It's just very inconvenient whenever people want to discuss or mention them.
gollark: Suuuuuure.

References
  • Pichi-Sermolli, R. (1946). "Carl Christensen in memoriam (1872–1942)". Nuovo Giornale Botanico Italiano. nueva serie. 53 (1–2).
  • Benedict, R. C. (1912). "Carl Frederik Albert Christensen: Some Biographical Notes". American Fern Journal. 2 (2): 53–57. doi:10.2307/1544606.
  • Asplund, E. (1945). "Carl Christensen". American Fern Journal. 35 (4): 131–132. JSTOR 1545652.
  1. IPNI.  C.Chr.
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