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Ingebrigt Hagen
Ingebrigt Severin Hagen; I.Hagen
* June 13, 1852 – June 08, 1917 †
botanist, physician
Norwegian physcian, bryologist, botanist (1852–1917)
http://www.wikidata.org/entity/Q16649316
https://en.wikipedia.org/wiki/Ingebrigt_Severin_Hagen [View]
Identifications made to collected specimens have not yet been recorded.