Mary DeDecker

Mary Caroline Foster DeDecker (3 October 1909, Guymon, Oklahoma – 2000, Independence, Inyo County, California) was an American botanist, conservationist, environmentalist and founder of the Bristlecone Chapter of the California Native Plant Society.[1] She discovered six new plants, three of which, including Dedeckera eurekensis,[2] are named in her honor.[3] Dedeckera Canyon, south of Eureka Dunes, is also named after her.[4]

Mary DeDecker
Born(1909-10-03)October 3, 1909
Guymon, Oklahoma
Died2000 (aged 90–91)
Independence, Inyo County, California
Resting placeIndependence Cemetery, Inyo county, California
CitizenshipAmerican
Known forDiscovered 6 new plants:
  • Astragalus lentiginosus var. Piscinensis,
  • Astragalus ravenii Barnaby,
  • Dedeckera eurekensis Reveal & Howell,
  • Lomatium inyoense Math. & Const. (now Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. Inyoense (Math. & Const.) Theobald,
  • Lupinus dedeckerae Munz & Dunn (now L. padre-crowleyi C. P. Smith)
  • Trifolium dedeckerae Gillett
Scientific career
FieldsBotanics

Life

Mary Caroline Foster was born 3 October 1909 in Texas County, Oklahoma Barden P. O., later RFD Guymon, in a family of Charles Morrison Foster and Phoebe Arabella Thomphson.[3] Her father was a farmer and an office manager for Los Angeles DWP. She studied at Van Nuys High School in the San Fernando Valley and after that completed one year at the University of California, Los Angeles (UCLA).[3]

She lived in Zelzah, now Northridge, until she married to Paul DeDecker in 1929. The couple moved to North Hollywood where their daughters were born in 1932 and 1933.[3] In 1935 the DeDeckers moved to Independence, Inyo county, California.[5]

Mary DeDecker died in 2000 in Independence at the age of 91 and is buried at Independence Cemetery, Inyo county, California.

Work

In Independence DeDecker met a naturalist Mark Kerr who made an exhibit of the plants and their uses by the Paiute Indians, as well as mounting and labeling many local plants. He taught DeDecker what some of the plans were and advised to send unknown specimens to Dr. Philip Munz at Rancho Santa Ana Botanic Garden in Claremont and to John Thomas Howell at the Academy of Sciences in San Francisco. DeDecker started sending plants to them in early 1950s. In 1954 DeDecker started collecting her herbarium that included over 6 000 specimens.[3] She became the pre-eminent plant expert in the northern Mojave and Eastern Sierra areas.[5]

In 1966 she published a book called Mines of the Eastern Sierra.[5]

After 1967 she focused on plant work and didn't search any other job. She has been hired or given contracts for many consulting jobs, largely to fulfill the requirements of California Environmental Quality Act.[3]

She discovered six new plants: Astragalus lentiginosus var. piscinensis,[6] Astragalus ravenii Barnaby,[7] Dedeckera eurekensis Reveal & Howell,[2] Lomatium inyoense Math. & Const. (now Lomatium foeniculaceum (Nutt.) Coult. & Rose subsp. inyoense (Math. & Const.) Theobald,[8] Lupinus dedeckerae Munz & Dunn (now L. padre-crowleyi C. P. Smith)[9] and 'Trifolium dedeckerae Gillett.[10][3] Also she made the first collections of the following plants in California, most of them previously known in Nevada: Agave utahensis Engelm. var. eborispina (Hester) Breit., Cryptantha scoparia A. Nels., Cymopterus ripleyi Barneby, Draba cana Rydb., and  Eriogonum puberulum S. Wats.[3] 

In 1982 DeDecker founded the Bristlecone Chapter of the California Native Plant Society.[11]  

In 1984, Susan Cochrane of the California Department of Fish & Game proved successful in her bid to name remote canyon south of Eureka Dunes in honor of DeDecker, hence, it is now called Dedeckera Canyon.[4]

In 1989 DeDecker, as a botanist who spent many years getting acquainted with the California desert, made a statement at the Hearing before the Subcommittee on National Parks and Public Lands of the Committee on Interior and Insular Affairs House of Representatives on California Desert Protection Act of 1989.[12]

DeDecker was active in such organizations as Garden Club, Civic Club, League of Women Voters, botanical organizations, Inyo Associates, Death Valley ‘49ers. She has served a number of years as Park Liaison Chairman and as second vice-president of the Death Valley ‘49ers, a supportive organization for Death Valley National Monument.[3]

Dedecker was a community activist in relation to the Owens Valley Committee and Inyo County water issues.[11] She has also was active in the Eastern California Museum, mostly a disillusioning experience, and in the Concerned Citizens, an activist organization to fight for the rights of Owens Valley in the water issues.[3] As a hard-working environmentalist she fought to preserve Owens Valley and Eureka Dunes in California.[5]

She was active in the Democratic Party being on the Democratic Central Committee in Inyo County, and was appointed to the State Central Committee by Senator Charles Brown.[3]

In DeDecker’s memory and for her many contributions to the botany and history of the Eastern Sierra Nevada and northern Mojave Desert, The Bristlecone Chapter of the California Native Plant Society founded Mary DeDecker Botanical Grant, a small-grants program.[13]

Publications (selection)
  • 1966 – Mines of the Eastern Sierra[14]
  • 1982 – Eureka Dunes Recovery Plan[15]
  • 1984 - Flora of the Northern Mojave Desert, California[16]
  • 1993 – White Smith's Fabulous Salt Tram[17]
  • 1996 -  Bob Eichbaum's Resort and His Toll Road to Death Valley[18]
gollark: Apparently not, since `debug.setmetatable` won't let me override division.
gollark: I should see if I can make it produce a more fun result in potatOS.
gollark: Although potatOS does not, as of yet, expose it as an API.
gollark: I have some code for that from somewhere.
gollark: Yes. Rednet must DIE.

References
  1. "Mary DeDecker Papers". oac.cdlib.org. Retrieved 2020-01-15.
  2. "Plants Profile for Dedeckera eurekensis (July gold)". plants.sc.egov.usda.gov. Retrieved 2020-01-17.
  3. Carter, Annetta M.; Constance, Lincoln; DeDecker, Mary; Holleuffer, Carol; McClintock, Elizabeth May; Library, Bancroft. California women in botany. Berkeley, Calif.: University of California.
  4. Steve, Wild (2009-02-22). "Botanist Mary DeDecker". Death Valley Journal. Retrieved 2020-01-15.
  5. "Mary Dedecker | desertwildflower.com". www.desertwildflower.com. Retrieved 2020-01-15.
  6. "Plants Profile for Astragalus lentiginosus piscinensis (Fish Slough milkvetch)". plants.sc.egov.usda.gov. Retrieved 2020-01-17.
  7. "Plants Profile for Astragalus ravenii (Raven's milkvetch)". plants.sc.egov.usda.gov. Retrieved 2020-01-17.
  8. "Plants Profile for Lomatium foeniculaceum inyoense (Inyo biscuitroot)". plants.sc.egov.usda.gov. Retrieved 2020-01-17.
  9. "Plants Profile for Lupinus padre-crowleyi (Dedecker lupine)". plants.sc.egov.usda.gov. Retrieved 2020-01-17.
  10. "Plants Profile for Trifolium dedeckerae (Dedecker's clover)". plants.sc.egov.usda.gov. Retrieved 2020-01-17.
  11. "Calisphere: Mary DeDecker, An Oral History". Calisphere. Retrieved 2020-01-15.
  12. Lands, United States Congress House Committee on Interior and Insular Affairs Subcommittee on National Parks and Public (1991). California desert protection act. U.S. Government Printing Office. pp. 154–58.
  13. "DeDecker Botanical Grant Program | CNPS Bristlecone Chapter". bristleconecnps.org. Retrieved 2020-01-15.
  14. DeDecker, Mary (April 1997). Mines of the Eastern Sierra. Borden Publishing Company. ISBN 978-0-87505-411-7.
  15. DeDecker, Mary; Service, U. S. Fish and Wildlife (1982). Eureka Valley dunes recovery plan. U.S. Fish and Wildlife Service.
  16. DeDecker, Mary (October 1984). Flora of the northern Mojave Desert, California. California Native Plant Society.
  17. DeDecker, Mary (1993). White Smith's Fabulous Salt Tram. Sagebrush Press.
  18. DeDecker, Mary (1996). Bob Eichbaum's Resort and His Toll Road to Death Valley.
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