Lincoln Constance (February 16, 1909 – June 11, 2001) was an American botanist and administrator at the

University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...

. Constance worked with Marion S. Cave for over twenty years to identify how many chromosomes different members of Hydrophyllaceae had. An expert on the

parsley family Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus ''Apium'' and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plants ...

, he was a fellow of the

American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and ...

and the

California Academy of Sciences The California Academy of Sciences is a research institute and natural history museum in San Francisco, California, that is among the largest museums of natural history in the world, housing over 46 million specimens. The Academy began in 1853 ...

, and served as president of the

American Society of Plant Taxonomists The American Society of Plant Taxonomists (ASPT) is a botanical organization formed in 1935 to "foster, encourage, and promote education and research in the field of plant taxonomy, to include those areas and fields of study that contribute to and b ...

, the

California Botanical Society The California Botanical Society was founded by Willis Linn Jepson in 1913, since when it has advanced the knowledge of botanical sciences in the Western United States Services The society services are: the journal ''Madroño'', published since ...

and the

Botanical Society of America The Botanical Society of America (BSA) represents professional and amateur botanists, researchers, educators and students in over 80 countries of the world. It functions as a United States nonprofit 501(c)(3) membership society. History The soci ...

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* American taxonomists 1909 births 2001 deaths Botanists active in California Fellows of the American Academy of Arts and Sciences People associated with the California Academy of Sciences UC Berkeley College of Chemistry faculty Botanical Society of America Scientists from the San Francisco Bay Area 20th-century American botanists Members of the Royal Swedish Academy of Sciences {{US-botanist-stub