Isoetes philippinensis Merr. & L.M. Perry (1940:19)

kabauing-bauing, lunsay

Taxonomy & Nomenclature

Conservation Status

Last record (disputed): 24 August 1969 (Amoroso et al., 2022); 1970 (Christenhusz & Govaerts, 2024)

Rediscovered on: 25 May 2022 (Amoroso et al., 2022)

Still listed as Extinct by (Christenhusz & Govaerts, 2024; POWO, 2024).

Distribution

Olangu river, Barangay Angayen, Municipality of Baloi, Lanao del Norte, Mindanao, Philippines

Type locality: as above (Amoroso et al., 2022)

Only known from the type locality (Amoroso et al., 2022).

Biology & Ecology

See (Amoroso et al., 2022).

Hypodigm

See (Amoroso et al., 2022).

Media

References

Original scientific description:

Merrill, E. D. and Perry, L. M. (1940). A New Philippine Isoetes. American Fern Journal 30(1): 18-20.

Other references:

Alston, A. H. G. (1959). Isoetaceae. Flora Malesiana, Vol. I, Series II.

Amoroso, Victor B. et al. (2022). Rediscovery of the Presumed Extinct Philippine Quillwort Isoetes philippinensis Merr. & L.M. Perry (Isoetaceae) and New Insights on its Morphology and Ecology. Philippine Journal of Science 151(6A): 2093-2100. https://doi.org/10.56899/151.6A.03

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]

Ebihara, Atsushi, Fraser-Jenkins, Christopher Roy, Parris, Barbara S., Zhang, Xian-Chun, Yang, Yue-Hong, Chiou, Wen-Liang, Chang, Ho-Ming, Lindsay, Stuart, Middleton, David, Kato, Masahiro, Praptosuwiryo, Titien Ngatinem, Amoroso, Victor B., Barcelona, Julie F., Ranil, Rajapaksha Haddokara Gedara, Park, Chan-Ho, Murakami, Noriaki and Hoya, Akihiko (2012). Rare and Threatened Pteridophytes of Asia 1. An Enumeration of Narrowly Distributed Taxa. Bulletin of the National Museum of Nature and Science, Series B. 38(3): 93-119.

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]

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 22 May 2024]

Roskov Y. et al. (eds.). (2018). World Ferns: Checklist of Ferns and Lycophytes of the World. Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Troìa, Angelo, Pereira, Jovani B .S., Kim, Changkyun and Taylor, W. Carl. (2016). The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 101-145. https://doi.org/10.11646/phytotaxa.277.2.1

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