Geissanthus zakii (Pipoly) Ricketson & Pipoly (2003:312)
Taxonomy & Nomenclature
Synonym/s: Ardisia zakii Pipoly in Sida 17: 449 (1996)
Conservation Status
Missing (Miranda Moyano et al., 2025)
Last (and only) record: 1986 (Santiana & Pitman, 2004; Santiana, 2017; Miranda Moyano et al., 2025)
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution & Habitat
Ecuador
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Pipoly III, J. J. (1996). New species of Ardisia (Myrsinaceae) from Ecuador and Peru. Sida 17(2): 445-458.
Other references:
Govaerts, R. (2003). World Checklist of Seed Plants Database in ACCESS Genera starting with letter G: 1-40325.
León-Yánez, Susana, Valencia, Renato, Pitman, Nigel, Endara, Lorena, Ulloa Ulloa, Carmen and Navarrete, Hugo (eds.). (2011). Libro rojo de las plantas endémicas del Ecuador, 2ª edición. Publicaciones del Herbario QCA, Pontificia Universidad Católica del Ecuador, Quito. 957 pp. [WARNING: 194MB file]
Miranda Moyano, N., Moya Marcalla, G. F., Fernández Fernández, D. and Román-RR, R. (2025). Geissanthus zakii. The IUCN Red List of Threatened Species 2025: e.T37329A228547306. https://dx.doi.org/10.2305/IUCN.UK.2025-1.RLTS.T37329A228547306.es. Accessed on 12 August 2026.
Oldfield, Sara, Lusty, Charlotte and MacKinven, Amy (compilers). (1998). The World List of Threatened Trees. Cambridge, U.K.: World Conservation Press. 650 pp.
POWO. (2026). 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 August 2026]
Santiana, J. (2017). Geissanthus zakii. In: León-Yánez, S., R. Valencia, N. Pitman, L. Endara, C. Ulloa Ulloa and H. Navarrete (Eds). Red Book of Endemic Plants of Ecuador. Publications of the QCA Herbarium, Pontifical Catholic University of Ecuador, Quito. <https://bioweb.bio/floraweb/librorojo/FichaEspecie/Geissanthus%20zakii>, accessed Wednesday, August 12, 2026.
Santiana, J. and Pitman, N. (2004). Geissanthus zakii. The IUCN Red List of Threatened Species 2004: e.T37329A10044900. https://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T37329A10044900.en. Accessed on 12 August 2026.
Valencia, R., Pitman, N., León-Yánez, S. and Jørgensen, P. M. (eds.). (2000). Libro Rojo de las Plantas Endémicas del Ecuador 2000. Publicaciones del Herbario QCA, Ponticicia Universidad Católica del Ecuador, Quito.
World Conservation Monitoring Centre. (1998). Geissanthus zakii. The IUCN Red List of Threatened Species 1998: e.T37329A10044952. Accessed on 12 August 2026.