Truman G. Yuncker
U.S. botanist and educator (1891–1964)

Truman George Yuncker (March 20, 1891 – January 8, 1964) was a taxonomic botanist best known for his work in the family Piperaceae.
Biography
Yuncker first taught at Manual High School in Indianapolis, Indiana. After service in World War I, he received his doctorate from the University of Illinois in 1919. Soon after, he became a faculty member at DePauw University and became head of the botany and bacteriology department in 1921 and held that post until retirement in 1956. During his tenure he described 839 new species, 211 new varieties and 25 new formae in the Piperaceae. He wrote the treatment of that family in almost every regional flora published during his lifetime. His early studies were on the genus Cuscuta, in which he described 67 new species and 39 new varieties.
Yuncker acquired an impressive collection of plant samples which became an herbarium maintained by DePauw. DePauw sold the collection to the New York Botanical Garden in 1987.
Yuncker died in Greencastle, Indiana on January 8, 1964, and was buried at Mount Evergreen Cemetery in Jackson, Michigan.
The public source identifies “Truman G. Yuncker” as u.S. botanist and educator (1891–1964). This brief keeps that definition visible, then builds a research path around Truman, Yuncker and botanist.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q726241. VIAF identifies the subject as 76564018. The Library of Congress control number is n82260075. 4 of 4 selected statements include explicit references; 1 carry qualifiers and 1 use preferred rank. The first chronological checks are 1891, 1964, 1919 and 1921.
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This entry incorporates text from “Truman G. Yuncker” 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.