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Aven Nelson
Nelson circa 1909
Born	24 March 1859 Lee County, Iowa
Died	31 March 1952(1952-03-31) (aged 93) Colorado Springs, Colorado
Alma mater	University of Denver
Known for	President, University of Wyoming
Spouse(s)	Celia Alice Calhoun (1860-1929) Ruth E. Ashton (1896-1987)
Scientific career
Fields	Botany
Institutions	University of Wyoming
Author abbrev. (botany)	A.Nelson, A.Nels.

Aven Nelson (March 24, 1859 – March 31, 1952) was an American botanist who specialized in plants of the Rocky Mountains. He was one of the founding professors of the University of Wyoming, where he taught for 55 years as professor and served as president (1918-1922). He served as president of the American Society of Plant Taxonomists and Botanical Society of America.

Biography

Nelson was born at Sugar Creek, in Lee County, Iowa to parents Christen Nelson and Anne (Evenson) Nelson, who had immigrated from Norway. Aven was the youngest of four children in a Quaker family. He attended Kirksville State Normal School in Kirksville, Missouri from which he was graduated in 1883 with his Bachelor of Arts degree, while in 1887 he received the M. S. D. degree. He further continued his education in Drury College at Springfield, Missouri, which conferred upon him a Master of Science degree in 1890. He next entered Harvard University was awarded the Master of Arts degree in 1892. In 1893, he co-founded the Rocky Mountain Herbarium. At that time he started to curate and edit large duplicate series of herbarium specimens with printed labels and fixed titles, among others Plants of Wyoming. From the Rocky Mountain Herbarium and Plants of Yellowstone National Park. From the Rocky Mountain Herbarium. These large and widely distributed collections are sometimes confused with exsiccata works.

He came to the University of Wyoming in 1887. In 1901, he was made fellow of the American Association for the Advancement of Science. In 1904, the University of Denver conferred upon him the degree of Doctor of Philosophy. In 1917, Nelson was named acting president, then president (1918) of the University of Wyoming, a position he held until 1922. In 1934, he was elected president of the Botanical Society of America. In 1927, he co-founded the Colorado-Wyoming Academy of Science. In 1935, he became president of the American Society of Plant Taxonomists.

Personal life

In 1885, he married Celia Alice Calhoun (1860-1929). They were the parents of two children. In 1931, he married fellow botanist Ruth Elizabeth Ashton (1896-1987) in Santa Fe, New Mexico. He died in Colorado Springs, Colorado in 1952. The Aven Nelson Memorial Building on the campus of the University of Wyoming is named in his honor.

Selected works

• First report on the flora of Wyoming (1896)
• The Trees of Wyoming and How to Know Them (1899)
• The Red Desert of Wyoming and its forage resources (1898) Library of Congress Catalog #. LCCN agr09000261.
• The Flora of Montana (1900)
• The Cryptogams of Wyoming. A Preliminary Report upon those Species (1900) ASIN B00088QIUU
• The Brome-Grasses of Wyoming (1901)
• An Analytical Key to Some of the Common Flowering Plants of the Rocky Mountain Region (1902)
• Shade tree suggestions (1903)
• Spring Flora of the Intermountain States (1912) OL 14173707M LCCN 12-14157

Note

References

1. "Aven Nelson, Biographical and Professional Information". American Heritage Center at the University of Wyoming. Archived from the original on 2016-01-27. Retrieved January 5, 2016.
2. "Aven Nelson, Founding Member of UW, Botanist". storify.com. Archived from the original on 2016-01-27. Retrieved January 5, 2016.
3. "Aven Nelson, UW Professor & President". University of Wyoming. Archived from the original on December 28, 2015. Retrieved January 5, 2016.
4. "About the Rocky Mountain Herbarium". University of Wyoming. Archived from the original on March 4, 2016. Retrieved January 5, 2016.
5. Triebel, D. & Scholz, P. 2001–2024 IndExs – Index of Exsiccatae. Botanische Staatssammlung München: http://indexs.botanischestaatssammlung.de. – München, Germany.
6. "Plants of Wyoming. From the Rocky Mountain Herbarium: IndExs ExsiccataID=2147199831". IndExs – Index of Exsiccatae. Botanische Staatssammlung München. Retrieved 4 October 2024.
7. "Plants of Yellowstone National Park. From the Rocky Mountain Herbarium: IndExs ExsiccataID=2147199832". IndExs – Index of Exsiccatae. Botanische Staatssammlung München. Retrieved 4 October 2024.
8. Bartlett, Ichabod Sargent (1918). "Professor Aven Nelson". History of Wyoming. S. J. Clarke Publishing Company. pp. 588–589.
9. Charlotte Goodding Reeder (1969). "Chronology of the life of Dr. Aven Nelson". University of Wyoming. Archived from the original on January 26, 2016. Retrieved January 5, 2016.
10. "About The Colorado-Wyoming Academy of Science". Colorado Wyoming Academy of Science. Archived from the original on January 26, 2016. Retrieved January 5, 2016.
11. "Aven Nelson, Botanist and President of the University of Wyoming | WyoHistory.org". 2020-01-11. Archived from the original on 2020-01-11. Retrieved 2020-03-03.
12. "Aven Nelson Building". University of Wyoming. Retrieved January 5, 2016.
13. "Author Query". International Plant Names Index.

Other sources

• Knobloch, Frieda E. (2005) Botanical Companions: a Memoir of Plants and Place (University of Iowa Press) ISBN 9781587294525
• Williams, Roger L. (1984). Aven Nelson of Wyoming. (Colorado Associated University Press). ISBN 0870811479.
• This article incorporates text from this source, which is in the public domain: Bartlett, Ichabod Sargent (1918). "Professor Aven Nelson". History of Wyoming. (S. J. Clarke Publishing Company). pp. 588–589.

External links

• Works by or about Aven Nelson at the Internet Archive

• American taxonomists
• Taxa named by Aven Nelson
• 1859 births
• 1952 deaths
• Presidents of the University of Wyoming
• University of Wyoming faculty
• Drury University alumni
• Harvard University alumni
• University of Denver alumni
• American people of Norwegian descent
• People from Lee County, Iowa
• 19th-century American botanists
• 20th-century American botanists
• Truman State University alumni