Dypsis ambanjae Beentje (1995:299)



Taxonomy & Nomenclature

Synonym/s: Phloga sambiranensis Jum. in Ann. Mus. Colon. Marseille, sér. 5, 1(3): 18 (1933)Chrysalidocarpus ambanjae (Beentje) Eiserhardt & W.J.Baker


Valid as Chrysalidocarpus ambanjae according to (Eiserhardt et al., 2022), but treated under Dypsis by (POWO, 2024).


Conservation Status

Last record: 1912 (Rakotoarinivo & Dransfield, 2012) or later (before 1918)

Rediscovered (Rakotoarinivo & Dransfield, 2012)

IUCN RedList status: Critically Endangered


Was considered Extinct in the Wild by (Dransfield & Beentje, 1995 fide Rakotoarinivo et al., 2014), but was later downlisted to Critically Endangered (Rakotoarinivo et al., 2014). Still listed as Extinct by (Humphreys et al., 2019).





Biology & Ecology










Original scientific description:

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


Other references:

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.

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, Sara, Lusty, Charlotte and MacKinven, Amy (compilers). (1998). The World List of Threatened Trees. Cambridge, U.K.: World Conservation Press. 650 pp.

POWO. (2024). Dypsis ambanjae Beentje. Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: [Accessed 10 February 2024]

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 ambanjae. The IUCN Red List of Threatened Species 2012: e.T38516A2870138. Downloaded on 21 November 2016.

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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