Monardella leucocephala A.Gray (1868:885)
Merced monardella
Taxonomy & Nomenclature
Synonym/s: Madronella leucocephala (A.Gray) Greene in Leafl. Bot. Observ. Crit. 1: 169 (1906)
Conservation Status
Extinct (Smith & York, 1984:3; Rejmánek, 2018; Smith, 2018; Humphreys et al., 2019; Knapp et al., 2020; Albani Rocchetti et al., 2022; Christenhusz & Govaerts, 2024; POWO, 2024)
Last record: 1941 (Ripley, 1975:44; Smith & York, 1984:3; Rejmánek, 2018; Smith, 2018; Knapp et al., 2021; Christenhusz & Govaerts, 2024)
Distribution
Merced County & Stanislaus County, California, USA
Biology & Ecology
Hypodigm
Media
References
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Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2023). Uitgestorven. Op plantenjacht rond de wereld: 1-511. Sterck & De Vreese.
Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2024). Plant extinction in the Anthropocene. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/boae045 [Appendix S1]
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Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. https://doi.org/10.1038/s41559-019-0906-2 [Supplementary Dataset 1]
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Knapp, Wesley M., Frances, Anne, Noss, Reed, Naczi, Robert F. C., Weakley, Alan, Gann, George D., Baldwin, Bruce G., Miller, James, McIntyre, Patrick, Mishler, Brent D., Moore, Gerry, Olmstead, Richard G., Strong, Anna, Kennedy, Kathryn, Heidel, Bonnie and Gluesenkamp, Daniel. (2021). Vascular plant extinction in the continental United States and Canada. Conservation Biology 35(1): 360-368. https://doi.org/10.1111/cobi.13621 [Supporting Information (Appendix S1)]
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Ripley, S. Dillon. (1975). Report on endangered and threatened species of the United States. House Document 94-51: 1-200 [44].
Smith, James P., jnr. (2018). California vascular plants: are some of them still out there? Botanical Studies 74: 1-4.
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Walter, Kerry S. and Gillett, Harriet J. (eds.). (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. Gland, Switzerland & Cambridge, UK: IUCN – The World Conservation Union. lxiv + 862 pp.
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