Frederik Marcus Knuth
Frederik Marcus Knuth (5 May 1904 – 14 June 1970) was a Danish taxonomist especially known for the collection and classification of cactuses. He collected and described many new species.
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Wikipedia
Frederik Marcus Knuth (5 May 1904 – 14 June 1970) was a Danish taxonomist especially known for the collection and classification of cactuses. He collected and described many new species.