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Willis Linn Jepson
Jepson in 1911
Born	(1867-08-19)August 19, 1867 Vacaville, California, U.S.
Died	November 7, 1946(1946-11-07) (aged 79) Berkeley, California, U.S.
Alma mater	University of California, Berkeley
Occupation(s)	Botanist, conservationist
Notable work	A Flora of California (1909)

Willis Linn Jepson (August 19, 1867 – November 7, 1946) was an early California botanist, conservationist, and writer.

Career

Born at Little Oak Ranch near Vacaville, California, Jepson became interested in botany as a boy and explored the adjacent San Francisco Bay Area. He came in contact with various botanists before he entered college.

In 1892, at the age of 25, Jepson, John Muir, and Warren Olney formed the Sierra Club, in Olney's San Francisco law office. From 1895 to 1898, Jepson served as instructor in Botany and carried on research at the University of California, Berkeley, Cornell University (1895), and Harvard University (1896–1897). He received his Ph.D. at Berkeley in 1899.

He was made assistant professor in 1899, associate professor in 1911, professor in 1918, and professor emeritus in 1937. He was a professor of botany at UC Berkeley for four decades, thus his entire career was identified with the University of California. Jepson founded the California Botanical Society and served as its president from 1913 to 1915; he also worked as councilor of the Rancho Santa Ana Botanic Garden.

Legacy

Many honors and commemorations came to Jepson during his lifetime and as well as posthumously:

• He was granted a fellowship to the California Academy of Sciences, American Academy of Arts and Sciences, and American Geographical Society
• Member of the American Genetic Association, American Society of Plant Taxonomists, Botanical Society of America, Society of American Foresters, Washington Academy of Sciences, Western Society of Naturalists, Phi Beta Kappa, and Sigma Xi
• Foreign member of the Royal Society of Arts, Société linnéenne de Lyon, and Czechoslovak Botanical Society
• Colleagues at UC Berkeley honored him with the Faculty Research Lectureship in 1934
• The Saxifragaceae genus Jepsonia and its species are named after him
• The Jepson Herbarium at UC Berkeley is named for him
• The Jepson Manual is named in his honor
• California's Jepson Peak, Mount Jepson, and Jepson Prairie are named after him
• The oldest known living laurel tree in California is named after him.

Publications

Jepson wrote at least 11 books during his lifetime, with two focused on California's trees. His works include A Flora of California (1909), The Trees of California (1909); and the major A Manual of the Flowering Plants of California (1925), predecessor of The Jepson Manual (1993).

• A Flora of California – Volume I. San Francisco: Cunningham, Curtiss & Welch. 1909a. OCLC 755039635.
• A Flora of California – Volume II. San Francisco: Cunningham, Curtiss & Welch. 1909b. OCLC 755039635.

References

Footnotes

1. "Jepson Herbarium: Willis Linn Jepson-The Botany Man". ucjeps.berkeley.edu. Retrieved September 15, 2021.
2. "Jepson Herbarium: Obituary of Willis Linn Jepson (1867-1946)". ucjeps.berkeley.edu. Retrieved September 15, 2021.
3. "Jepson Peak". Hundred Peaks Section List. Angeles Chapter, Sierra Club. Retrieved March 2, 2014.
4. Smith, James (December 1, 2019). "Willis Linn Jepson". Botanical Studies.
5. "Jepson Prairie Reserve". July 21, 2015. Retrieved September 15, 2021.
6. "https://parks.smcgov.org/what-see-crystal-springs-trail What to See on Crystal Springs Trail." San Mateo County. Accessed November 28, 2021.
7. International Plant Names Index.  Jeps.

Bibliography

• Beidleman, R. G. (2000). "Willis Linn Jepson—"The Botany Man"". Madroño. 47 (4): 273–286. JSTOR 41426286.
• Constance, L. (June 1947). "Willis Linn Jepson, 1867–1946". Science. 105 (2737): 614. Bibcode:1947Sci...105..614C. doi:10.1126/science.105.2737.614. PMID 17788560.
• Davis, A. R.; et al. (1946). "Willis Linn Jepson (1867–1946)". Jepson Herbarium. UC Berkeley. Retrieved November 15, 2020.

External links

• Works by Willis Linn Jepson at Biodiversity Heritage Library
• Works by Willis Linn Jepson at Open Library
• Works by or about Willis Linn Jepson at the Internet Archive

• 19th-century American botanists
• 19th-century American male writers
• 19th-century American non-fiction writers
• 20th-century American botanists
• 20th-century American male writers
• 20th-century American non-fiction writers
• 1867 births
• 1946 deaths
• Activists from California
• American botanical writers
• American conservationists
• American information and reference writers
• American male non-fiction writers
• American non-fiction environmental writers
• American taxonomists
• Botanists active in California
• Botanists active in North America
• Cornell University faculty
• Harvard University staff
• People from Vacaville, California
• Scientists from the San Francisco Bay Area
• Sierra Club people
• University of California, Berkeley alumni
• University of California, Berkeley faculty