Chrysalidocarpus basilongus (Jum. & H.Perrier) Eiserhardt & W.J.Baker (2022:1183)



Taxonomy & Nomenclature

Synonyms: Neodypsis basilonga Jum. & H.Perrier in Ann. Mus. Colon. Marseille, sér. 3, 1: 16 (1913); Dypsis basilonga (Jum. & H.Perrier) Beentje & J.Dransf. in Palms Madagascar: 193 (1995)


Conservation Status

Extinct [by implication] (Humphreys et al., 2019) (see below); possibly Rediscovered (Palmpedia)


Historically considered extinct by at least one source (fide Humphreys et al., 2019), it was treated as a synonym by Humphreys et al. (2019) and thus not a true extinction, but as the synonymy is homotypic the taxon is still valid. It has been reported to be extant at the type locality, though without confirmation due to rotten inflorescences (Palmpedia).





Biology & Ecology










Dransfield, J. and Beentje, H. J. (1995). The Palms of Madagascar. Royal Botanic Gardens Kew and The International Palm Society, Richmond.

Dransfield, J. and Beentje, H. J. (1998). Dypsis basilonga. The IUCN Red List of Threatened Species 1998: e.T38521A10128376. Accessed on 10 February 2024.

Eiserhardt, Wolf L., Bellot, Sidonie, Cowan, Robyn S., Dransfield, John, Hansen, Lars Emil S. F., Heyduk, Karolina, Rabarijaona, Romer N., Rakotoarinivo, Mijoro and Baker, William J. (2022). Phylogenomics and generic limits of Dypsidinae (Arecaceae), the largest palm radiation in Madagascar. Taxon 71(6): 1170-1195.

Govaerts, R. and Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.

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. [Supplementary Dataset 1]

Oldfield, S., Lusty, C. and MacKinven, A. (compilers). (1998). The World List of Threatened Trees. World Conservation Press, Cambridge, UK.

Rakotoarinivo, M. (2008). Analyse de la distribution et de la conservation des Palmiers (Arecaceae) de Madagascar par l'utilisation du systeme d'information geographique. Biologie et Ecologie Vegetale, University of Antananarivo.

Rakotoarinivo, M. and Dransfield, J. (2012). Dypsis basilonga. The IUCN Red List of Threatened Species 2012: e.T38521A2871677. Accessed on 10 February 2024.

Rakotoarinivo, Mijoro, Dransfield, John, Bachman, Steven P., Moat, Justin and Baker, William J. (2014). Comprehensive Red List Assessment Reveals Exceptionally High Extinction Risk to Madagascar Palms. PLoS ONE 9(7): e103684.

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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