William Trelease

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William Trelease
Born(1857-02-22)February 22, 1857
DiedJanuary 1, 1945(1945-01-01) (aged 87)
Scientific career
Author abbrev. (botany)Trel.

William Trelease (February 22, 1857 – January 1, 1945) was an American botanist, entomologist, explorer, writer and educator. This botanist is denoted by the author abbreviation Trel. when citing a botanical name.[1]

Trelease was born in Mount Vernon, New York. He graduated B.S. from Cornell University in 1880. He was instructor in botany at Harvard University 1880–81, instructor in botany at the University of Wisconsin 1881–83, and professor of botany there from 1883 to 1885. He was also special lecturer in botany at Johns Hopkins University, and in charge of the summer school of botany at Harvard, during 1883–84. He was Engelmann professor of botany at Washington University in St. Louis from 1885 to 1913, and appointed director of the Missouri Botanical Garden from 1889 to 1912. He was active in various municipal and professional academic associations:[2] he was the first President of the Botanical Society of America in 1894,[3] and served as President for a second time in 1918.[4] From 1913 to 1926 he was professor of botany and head of department at the University of Illinois. Trelease Hall at University of Illinois at Urbana-Champaign is named after William Trelease.

Trelease was amongst the scientists on the two-month expedition to Alaska led by Edward Henry Harriman in 1899.[5] In 1932 he led a botanical expedition to the Canary Isles and Spain, and in 1933 an expedition to New Zealand.[6]

Trelease wrote many scientific articles and monographs. His work on the Piperaceae of Northern South America, left unfinished at his death, was completed by his student Truman G. Yuncker.[7] He also wrote several more popular botanical and gardening books, such as Plant materials of decorative gardening (1917) and Winter Botany (1918).


  1. ^ Brummitt, R. K.; C. E. Powell (1992). Authors of Plant Names. Royal Botanic Gardens, Kew. ISBN 1-84246-085-4.
  2. ^ Cattell, J. Y., Leaders in education, 1932
  3. ^ A Brief History - Botanical Society of America
  4. ^ Presidents of the Botanical Society of America
  5. ^ William Trelease PBS. Retrieved March 8, 2008.
  6. ^ American men of science, 5th ed. 1933
  7. ^ Guide to the Truman G. Yuncker Papers at the New York Botanical Garden

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