John-Axel Nannfeldt (baptized Johan Axel Frithiof Nannfeldt), born 18 January 1904 in Trelleborg and deceased 4 November 1985 in Uppsala,[1] was a Swedish botanist and mycologist.
Nannfeldt studied natural history at the University of Uppsala and obtained a doctorate degree in 1932.[2] He became professor of botany at Uppsala University in 1939, a position he held until his retirement in 1970.[1] He did numerous studies on the systematics of fungi and vascular plants. Among the groups he treated were the plant pathogenic rust fungi,[3] smut fungi[4] and Exobasidium.[5] He also treated taxonomy and biogeography of various groups of vascular plants, e.g. the arctic Poa laxa complex.[6]
Nannfeldt published the exsiccata work Fungi Exsiccati Suecici, praesertim Upsalienses together with Lennart Holm and others.[7]
He was elected member no. 983 of the Royal Swedish Academy of Sciences in 1955.
The fungal genus Nannfeldtiella was named in his honour by Franz Petrak in 1947, (now listed as a synonym of Pseudombrophila aggregata(Eckblad) Harmaja.[8]) then in 1960, mycologist Richard Korf circumscribed Jafnea, which is a genus of fungi in the family Pyronemataceae.[9][10]
The species of cup fungus, Plectania nannfeldtii was also named in 1968.[11]
The standard author abbreviation Nannf. is used to indicate this person as the author when citing a botanical name.[12]
^ abF. A. S. (1986). "Death notices". Taxon. 35 (2): 467–468. JSTOR 1221342.
^Nannfeldt, J. A. (1932). Studien über die Morphologie und Systematik der nicht-lichenisierten inoperculaten Discomyceten (Thesis, Uppsala University). Nova acta Regiae societatis scientiarum upsaliensis - Ser. 4. v. 8, no. 2. Almqvist & Wiksell. p. 368.
^Hylander, N.; I. Jørstad; J. A. Nannfeldt (1953). Enumeratio Uredinearum Scandinavicarum. Opera Botanica. Vol. 1. pp. 1–102.
^Nannfeldt, J. A. (1977). "The species of Anthracoidea (Ustilaginales) on Carex subgen. Vignea with special regard to the Nordic species". Botaniska Notiser. 130: 351–375.
^Nannfeldt, J. A. (1981). "Exobasidium, a taxonomic reassessment applied to the European species". Symbolae Botanicae Upsalienses. 23: 1–72.
^Nannfeldt, J. A. (1963). "Taxonomic differentiation as an indicator of the migratory history of the North Atlantic Flora with special regard to the Scandes". In Löve, Á.; Löve, D. (eds.). North Atlantic Biota and their History: A symposium held at University of Iceland, Reykjavík July 1962. Oxford: Pergamon Press.
^"Fungi Exsiccati Suecici, praesertim Upsalienses: IndExs ExsiccataID=423122942". IndExs – Index of Exsiccatae. Botanische Staatssammlung München. Retrieved 19 April 2024.
^"Nannfeldtiella aggregata Eckblad". www.gbif.org. Retrieved 17 August 2022.
^Korf R. (1960). "Jafnea, a new genus of the Pezizaceae". Nagaoa. 7: 3–8.
^Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. Retrieved January 27, 2022.
^Eckblad FE. (1968). "The genera of the operculate discomycetes". Nytt Magasin for Botanik. 15: 116.
^International Plant Names Index. Nannf.
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