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Issue: Vol. 740 No. 3: 10 Feb. 2026
Type: Article
Published: 2026-02-10
DOI: 10.11646/phytotaxa.740.3.2
Page range: 237-247
Abstract views: 51
PDF downloaded: 40

Peperomia accentus (Piperaceae), a new geophytic species endemic to the Sierra Madre Occidental, Mexico

Instituto de Biología. Universidad Nacional Autónoma de México, Circuito Zona Deportiva S/N, C.U., 04510 Coyoacán, Mexico City, Mexico
Instituto de Biología. Universidad Nacional Autónoma de México, Circuito Zona Deportiva S/N, C.U., 04510 Coyoacán, Mexico City, Mexico
Programa de Posgrado en Botánica, Colegio de Postgraduados Campus Montecillo, Carretera México-Texcoco km. 36.5, Montecillo, 56264Texcoco, Estado de México, Mexico
endemic geophyte Neotropics Tildenia Magnoliids

Abstract

Peperomia accentus is described and illustrated as a new species of Piperaceae from the state of Zacatecas, Mexico, in the Sierra Madre Occidental mountain range. This new taxon belongs to the subgenus Tildenia, which includes species characterized by their geophytic habit. It can be distinguished from its congeners mainly by the combination of roots at the apex of the globose tuber, peltate leaves, numerous simple inflorescences and flowers with long and geniculated styles of a reddish color. A preliminary threat assessment is provided for the new species based on IUCN Red List guidelines. We provide a comprehensive analysis of the distribution patterns of the Mesoamerican species of Peperomia subgenus Tildenia. Finally, we include a key for species distributed north of the Trans-Mexican Volcanic Belt.

References

  1. Bachman, S., Moat, J., Hill, A.W., De La Torre, J. & Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. ZooKeys 150: 117–126. https://doi.org/10.3897/zookeys.150.2109
  2. Barthlott, W., Mutke, J., Rafiqpoor, D., Kier, G. & Kreft, H. (2005) Global centers of vascular plant diversity. Nova Acta Leopoldina NF 92: 61–83.
  3. Callejas-Posada, R. (2020) In: Davidse, G., Ulloa, C., Hernández, H. & Knapp, S. (Eds.) Flora Mesoamericana, Vol. 2, parte 2, (Piperaceae). 1st ed. Missouri Botanical Garden, Universidad Nacional Autónoma de México (Instituto de Biología), The Natural History Museum (Londres), St. Louis (MO) U.S.A., 619 pp.
  4. Candolle, A.C.P.de (1866) Piperaceae Novae. Journal of Botany, British and Foreign 4: 132–133.
  5. Dinerstein, E.D., Olson, M., Graham, D.J., Webster, A.L., Primm, S.A., Bookbinder, M.P. & Ledec, G. (1995) Una evaluación del estado de conservación de las ecorregiones terrestres de América Latina y el Caribe. WWF, Washington. [ISBN 0-8213-3191-1]
  6. eFloraMex (2025) Peperomia Ruiz & Pav. | eFloraMex—Flora de México en línea [bajo construcción]. eFloraMex, La flora electrónica de México. Available from: https://efloramex.ib.unam.mx/cdm_dataportal/taxon/a51e3ba5-3ade-4a6a-b4b2-736990727801 (accessed 1 August 2025)
  7. Frenzke, L., Scheiris, E., Pino, G., Symmank, L., Goetghebeur, P., Neinhuis, C., Wanke, S. & Samain, M.-S. (2015) A revised infrageneric classification of the genus Peperomia (Piperaceae). Taxon 64: 424–444. https://doi.org/10.12705/643.4
  8. GBIF.org (2025) GBIF Occurrence Download. Available from: https://www.gbif.org/occurrence/download/0075180-250717081556266 (accessed 23 August 2025)
  9. Hernández-Ramírez, D. (2020) Resumen ejecutivo. In: La biodiversidad en Zacatecas. Estudio de Estado. CONABIO, México, pp. 352–354.
  10. Hill, A.W. (1907) A revision of the geophilous species of Peperomia, with some additional notes on their morphology and seedling structure. Annals of Botany 2: 139–160. https://doi.org/10.1093/oxfordjournals.aob.a089128
  11. Hurtado-Reveles, L., Burgos-Hernández, M., Vázquez-Sánchez, M., López-Acosta, J.C., Hurtado-Reveles, L., Burgos-Hernández, M., Vázquez-Sánchez, M. & López-Acosta, J.C. (2022) Contribución al conocimiento florístico de la Sierra de los Cardos, Susticacán, Zacatecas, México. Botanical Sciences 100: 247–262. https://doi.org/10.17129/botsci.2882
  12. Inkscape Project (2024) Inkscape v. 1.4.
  13. IUCN (2024) Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Subcommittee. Available from: https://www.iucnredlist.org/resources/redlistguidelines (accessed 10 September 2025)
  14. Mathieu, G. (2017) Peperomia tubericordata (Piperaceae), a new geophytic species from Oaxaca, Mexico. Phytotaxa 313: 293–295. https://doi.org/10.11646/phytotaxa.313.3.9
  15. Mathieu, G., Symmank, L., Callejas, R., Wanke, S., Neinhuis, C., Goetghebeur, P. & Samain, M.-S. (2011) New geophytic Peperomia (Piperaceae) species from Mexico, Belize and Costa Rica. Revista mexicana de biodiversidad 82: 357–382. https://doi.org/10.22201/ib.20078706e.2011.2.1199
  16. Miquel, F.A.W. (1843) Systema piperacearum. Kramers, 575 pp. https://doi.org/10.5962/bhl.title.151
  17. Morrone, J.J. (2020) The Mexican Transition Zone: A Natural Biogeographic Laboratory to Study Biotic Assembly. Springer International Publishing, Cham. https://doi.org/10.1007/978-3-030-47917-6
  18. Olson, D.M., Dinerstein, E., Wikramanayake, E.D., Burgess, N.D., Powell, G.V.N., Underwood, E.C., D’Amico, J.A., Itoua, I., Strand, H.E., Morrison, J.C., Loucks, C.J., Allnutt, T.F., Ricketts, T.H., Kura, Y., Lamoreux, J.F., Wettengel, W.W., Hedao, P. & Kassem, K.R. (2001) Terrestrial ecoregions of the world: a new map of life on Earth. Bioscience 51 (11): 933–938. https://doi.org/10.1641/0006-3568(2001)051[0933:TEOTWA]2.0.CO;2
  19. Pino, G., Samain, M.-S., Suclli, E., Alcalá, A. & Marquiegui, D. (2023) Two New Geophytic Species of Peperomia Subgenus Tildenia (Piperaceae) from Central Peru. Haseltonia 29. https://doi.org/10.2985/026.029.0105
  20. QGIS Development Team (2025) QGIS Geographic Information System. v. 3.40.
  21. Rahbek, C. & Graves, G.R. (2001) Multiscale assessment of patterns of avian species richness. Proceedings of the National Academy of Sciences 98: 4534–4539. https://doi.org/10.1073/pnas.071034898
  22. Ruiz, H. & Pavón, J. (1794) Florae Peruvianae, et Chilensis Prodromus. en la imprenta de Sancha, Madrid.
  23. Samain, M.-S., Mathieu, G., Pino, G., Symmank, L., Cieza, N., Neinhuis, C., Goetghebeur, P. & Wanke, S. (2011) The geophytic Peperomia subgenus Tildenia (Piperaceae) in the Andes with the description of new species in a phylogenetic framework. Plant Ecology and Evolution 144: 148–176. https://doi.org/10.5091/plecevo.2011.470
  24. Samain, M.-S. & Tebbs, M.C. (2020) Familia Piperaceae. Instituto de Ecología A.C. Centro Regional del Bajío, Pátzcuaro, Michoacán, México, 62 pp.
  25. Symmank, L., Samain, M.-S., Smith, J.F., Pino, G., Stoll, A., Goetghebeur, P., Neinhuis, C. & Wanke, S. (2011) The extraordinary journey of Peperomia subgenus Tildenia (Piperaceae): insights into diversification and colonization patterns from its cradle in Peru to the Trans-Mexican Volcanic Belt. Journal of Biogeography 38: 2337–2349. https://doi.org/10.1111/j.1365-2699.2011.02586.x
  26. Trelease, W. (1922) The peltate peperomias of North America. Botanical Gazette 73 (2): 133–147. https://doi.org/10.1086/332965
  27. UNEP-WCMC and IUCN (2025) Protected Planet: The World Database on Protected Areas. WDPA. Available from: www.protectedplanet.net (accessed 12 September 2025)
  28. Villaseñor, J.L. (2016) Checklist of the native vascular plants of Mexico. Revista mexicana de biodiversidad 87 (3): 559–902. https://doi.org/10.1016/j.rmb.2016.06.017

How to Cite

Hurtado-Reveles, L., Amancio, G. & Burgos-Hernández, M. (2026) Peperomia accentus (Piperaceae), a new geophytic species endemic to the Sierra Madre Occidental, Mexico. Phytotaxa 740 (3): 237–247. https://doi.org/10.11646/phytotaxa.740.3.2