Carl Rudolf Florin (5 April 1894, in Solna – 24 September 1965) was a Swedish biologist botanist, specialising in gymnosperms, including both modern and fossil material. He was Professor Bergianus from 1944 and a member of the Royal Swedish Academy of Sciences from 1947.
Awards He was awarded the Linnean Society of London's Darwin-Wallace Medal in 1958.
Selected bibliography "On the geological history of the Sciadopitineae." Svensk Bot. Tidskr. 16 (2): 260-270 (1922). "Die Koniferengattung Libocedrus Endl. in Ostasien." Svensk Bot. Tidskr. 24 (1): 117-131 (1930). "Pilgerodendron, eine neue Koniferengattung aus Süd-Chile." Svensk Bot. Tidskr. 24 (1): 132-135 (1930). "Untersuchungen zur Stammesgeschichte der Coniferales und Cordaitales. Erster Teil: Morphologie und Epidermisstruktur der Assimilationsorgane bei den rezenten Koniferen." Kongl. Svenska Vetenskapsakad. Handl. 10 (1) 1-588 (1931). "Die Koniferen des Oberkarbons und des unteren Perms." Palaeontographica B 85: 1-729 (1938–1945). "Evolution in Cordaites and Conifers." Acta Hort. Berg. 15 (2): 285-388 (1951). "On Metasequoia, living and fossil." Bot. Not. 1 (105): 1-29 (1952). "Nomenclatural notes on genera of living gymnosperms." Taxon 5 (8): 188-192 (1956). "The distribution of Conifer and Taxad genera in Time and Space." Acta Hort. Berg. 20 (4): 121-312 (1963). "The distribution of Conifer and Taxad genera in Time and Space; additions and corrections." Acta Hort. Berg. 20 (6): 319-326 (1966).
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