Asplenium dielmannii Viane (1992:60)
Mann's island-spleenwort
Taxonomy & Nomenclature
Synonym/s: Microlepia mannii D.C.Eaton ex Mann in Proc. Amer. Acad. 7: 212 (1868); Davallia mannii (D.C.Eaton) Baker in W.J.Hooker & J.G.Baker, Syn. Fil., ed. 2: 471 (1874); Lindsaea mannii (D.C.Eaton) Hillebr. in Fl. Hawaiian Isl. 624 (1888); Humata mannii (D.C.Eaton) Diels in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 1(4): 210 (1899); Diellia mannii (D.C.Eaton) W.J.Rob. in Bull. Torrey Bot. Club 39: 582 (1912)
Conservation Status
Last record: 1800's (Aguraiuja & Wood, 2003; NatureServe, 2024)
Rediscovered on 23 April 2002 (Aguraiuja & Wood, 2003)
IUCN RedList status: Critically Endangered
The rediscovery of the species consisted of finding a single individual (Aguraiuja & Wood, 2003), which died in 2011 (Kishida, 2015). But a subpopulation of 90 more individuals (c. 75 mature) had been discovered the year before (i.e. 2010) (Ibid.). It is still treated as extinct by (POWO, 2023).
Distribution
Kauai, Hawaiian Islands, USA
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Viane, Ronald L. L. and Reichstein, T. (1992 "1991"). Notes about Asplenium II: Some new names and combinations in Asplenium L. (Aspleniaceae, Pteridophyta). Biol. Jb. Dodonaea 59(1991): 157-165.
Other references:
Aguraiuja, R. and Wood, Kenneth R. (2003). Diellia mannii (D. C. Eaton) Robins. (Aspleniaceae) Rediscovered in Hawai'i. American Fern Journal 93(3): 154-156. [First page preview]
Hassler, Michael. (2004-2023). World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 17.2; last update Oct. 18th, 2023. Available at: https://www.worldplants.de/ferns/ [Accessed 21 October 2023]
Hillebrand, W. F. (1888). Flora of the Hawaiian Islands: a description of their phanerogams and vascular cryptogams. Facsimile ed., 1981. Lubrecht & Cramer, Monticello, NY. 673 pp.
Kartesz, J. T. (1994). A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Kishida, W. (2015). Asplenium dielmannii. The IUCN Red List of Threatened Species 2015: e.T80229074A80229092. https://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T80229074A80229092.en. Downloaded on 21 November 2016.
Lorence, D. H., Wood, K. R. and Aguraiuja, R. (2013). Taxonomic reassessment and conservation status of three Kaua`i species of Asplenium in the Diellia alliance. American Fern Journal 103: 166-174.
NatureServe. (2024). NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available at: https://explorer.natureserve.org/ [Accessed 4 September 2024]
Palmer, Daniel D. (2003). Hawaii's Ferns and Fern Allies. Honolulu, Hawaii: University of Hawaii Press.
POWO. (2023). Asplenium dielmannii Viane. Plants of the World Online (online resource). Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 21 October 2023]
Schneider, H., Ranker, T. A., Russell, S. J., Cranfill, R., Geiger, J. M. O., Aguraiuja, R., Wood, K. R., Grundmann, M., Kloberdanz, K. and Vogel, J. C. (2005). Origin of the endemic fern genus Diellia coincides with the renewal of Hawaiian terrestrial life in the Miocene. Proc. Biol. Sci . B 272: 455-460.
Snow, N., Ranker, T. A. and Lorence, D. H. (2011). Taxonomic changes in Hawaiian ferns and lycophytes. Bishop Museum Occasional Papers 110: 11-16.
Wagner, W. H., Jr. (1952). The fern genus Diellia. University of California Publications in Botany 269(1): 1-211.
Wagner, Warren L., Bruegmann, Marie M., Herbst, Derral M. and Lau, Joel Q. C. (1999). Hawaiian Vascular Plants at Risk: 1999. Bishop Museum Occasional Papers 60: 1-58.
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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