Danish systematic botanist (1872–1942)
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.
 ;templatestyles src="Botanist/styles.css"/ ;The standard author abbreviation C.Chr. is used to indicate this person as the author when citing a botanical name.
References.
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