Crataegus delawarensis Sarg. (1903:102)
Delaware hawthorn
Taxonomy & Nomenclature
Synonym/s: Crataegus pruinosa var. delawarensis (Sarg.) E.J.Palmer in Brittonia 5: 487 (1946)
Conservation Status
Missing (NatureServe, 2024) or Extinct (POWO, 2024) or Extinct in the Wild? (Knapp et al., 2021)
Last (wild) record: October 1900 (Sargent, 1903:103); 1903 (Knapp et al., 2021; NatureServe, 2024)
Distribution
Delaware, USA
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Sargent, Charles S. (1903). The genus Crataegus in Newcastle County, Delaware. Botanical Gazette 35(2): 99-110.
Other references:
Abbot, J. R., Campbell, C. S., Burgess, M. B., Cushman, K. R., Doucette, E. T. and Gilman, A. V. (2017). Rosaceae, the Rose Family. Online edition. R.F.C. Naczi, J.R. Abbott, and Collaborators, New Manual of Vascular Plants of Northeastern United States and Adjacent Canada, compiled in 2016, 2017. NYBG Press, New York.
Christenhusz, M. and Govaerts, R. (2023). Uitgestorven. Op plantenjacht rond de wereld: 1-511. Sterck & De Vreese.
Fernald, M. L. (1950). Gray's manual of botany, eighth (centennial) edition. Corrected printing, 1970. D. Van Nostrand Co., New York, N.Y.1632 pp.
Flora of North America Editorial Committee (FNA). (2014). Flora of North America north of Mexico. Vol. 9. Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York. xxiv + 713 pp.
Gleason, H. A. (1958). The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. Vol 1-3.
Gleason, H. A. and Cronquist, A. (1991). Manual of vascular plants of northeastern United States and adjacent Canada, second edition. New York Botanical Garden, Bronx, NY.
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)]
Lance, Ron. (2014a). The hawthorns of the southeastern United States. Published by the author, Fletcher, NC. 136 pp.
Lance, Ron. (2014b). Haws: A Guide to Hawthorns of the Southeastern United States. Ron Lance, Mills River, NC, 518 pp.
NatureServe. (2024). Crataegus delawarensis. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available at: https://explorer.natureserve.org/ [Accessed 12 July 2024]
Phipps, J. A. (2014). Crataegus. In: Flora of North America Editorial Committee, eds. 1993+, Flora of North America North of Mexico. 19+ vols. New York and Oxford. Vol. 9, pp 491-643.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 12 July 2024]
Tatnall, R. R. (1946). Flora of Delaware and the Eastern Shore. Soc. Nat. Hist. Delaware, Lancaster, Pennsylvania.