John Henry Schaffner
American botanist and mycologist (1866–1939)

John Henry Schaffner (1866–1939) was an American botanist and professor at Ohio State University. He is known for his contributions to the floral diagram and for his work on reduction division. Schaffner is the botanical authority, for seven taxa that bear his name, such as Equisetum kansanum J.H.Schaffn..
References
Bibliography
External links
IPNI. List of plant names with authority J.H.Schaffn..
Begin with the source’s own compact description: “John Henry Schaffner” is american botanist and mycologist (1866–1939). The dossier treats that line as a proposition to test through John, Henry and Schaffner, not as a finished interpretation.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 25, 2025. The linked authority identifier is Q16027658. VIAF identifies the subject as 2153272. The Library of Congress control number is no2003038706. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1866 and 1939.
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This entry incorporates text from “John Henry Schaffner” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.