Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 722 No. 2: 14 Oct. 2025
Type: Article
Published: 2025-10-14
DOI: 10.11646/phytotaxa.722.2.2
Page range: 125-131
Abstract views: 291
PDF downloaded: 218

A new perennial species of Gomphrena (Amaranthaceae) from Mexico with nomenclatural notes on G. decumbens

Universidad de Sonora, DICTUS, Herbario USON Niños Héroes, entre Rosales y Pino Suárez, Col. Centro, C.P. 83000 Hermosillo, Sonora, México
Herbario del estado de Zacatecas HZAC, Guadalupe, 98600, Zacatecas, México
Universidad Nacional Autónoma de México, Facultad de Ciencias, Ciudad Universitaria, Coyoacán, 04510 Ciudad de México, México
Caryophyllales Gomphrenoideae flora of Zacatecas flora of Jalisco Eudicots

Abstract

Gomphrena caxcana (Amaranthaceae), a new species from the states of Jalisco and Zacatecas (Mexico), is described. It is morphologically similar to G. serrata, but it can be distinguished by the fleshy perennial taproot (vs. fibrous usually annual root), the presence of adventitious roots at the base of the stems (vs. absence of adventitious roots), the length of bractlets (3–4 mm vs. 4.8–7.4 mm), and the structure of staminal tube (with two short apical lobules between anthers vs. a single apical lobule between anthers). The name Gomphrena decumbens is also discussed and lectotypified.

References

  1. Brown, R. (1810) Prodromus Florae Novae Hollandiae. Richardi Taylor et Socii, Londini, 590 pp. https://doi.org/10.5962/bhl.title.3678
  2. BR herbarium (2025) Meise Botanic Garden Virtual Collection. Available from: www.botanicalcollections.be (accessed 28 August 2025).
  3. Clemants, S.E. (2003) Gomphrena L. In: Flora of North America Editorial Committee (eds.) Flora of North America North of Mexico, vol. 4. Oxford University Press, Oxford, pp. 451–454.
  4. Coulter, J.M. & Fisher, E.M. (1892) Some New North American Plants I. The Botanical Gazette 17: 348–352.
  5. GBIF.org (2025) GBIF Occurrence Download. Available from: https://doi.org/10.15468/dl.y3b6du (accessed 25 August 2025) https://doi.org/10.15468/dl.y3b6du
  6. Hooker, W.J. (1840) Icones Plantarum, vol. III. Longman, Orme, Brown, Green, & Longman, London, 91 pp.
  7. HUH-Index of Botanists (2013) Harvard University Herbaria & Libraries, Index of Botanist. Available from: https://kiki.huh.harvard.edu/databases/botanist_index.html (accessed 25 August 2025)
  8. Iamonico, D. (2012) Proposal to reject the name Gomphrena polygonoides (Amaranthaceae). Taxon 61 (6): 1326–1327.
  9. Iamonico, D. & Sánchez Del Pino, I. (2014) Lectotypification of the Linnaean name Gomphrena vermicularis L. (Amaranthaceae). Taxon 63 (2): 403–404. https://doi.org/10.12705/632.4
  10. IUCN (2025) Guidelines for using the International Union for Conservation of Nature Red List categories and criteria, Version 15.1, Prepared by the Standards and Petitions Subcommittee of the IUCN Species Survival Commission. Available from: https://www.iucnredlist.org/resources/redlistguidelines (accessed 19 January 2025)
  11. Jacquin, N. (1804) Plantarum rariorum horti caesarei Schoenbrunnensis descriptiones et icons, vol. IV. C. F. Wappler, Viennae, 56 pp. https://doi.org/10.5962/bhl.title.332
  12. JACQ consortium (2004) Virtual Herbaria Website. Available from: https://www.jacq.org/ (accessed 20 August 2025)
  13. K herbarium (2025) The Herbarium Catalogue, Royal Botanic Gardens, Kew. Available from: http://www.kew.org/herbcat (accessed 20 August 2025)
  14. Klotzsch, J.F. (1853) Gomphrena Haageana n.sp. Allgemeine Gartenzeitung 21 (38): 297–298.
  15. Kuntze, O. (1891) Revisio Generum Plantarum, vol. 2. A. Felix, Leipzig, 1011 pp. https://doi.org/10.5962/bhl.title.327
  16. Linnaeus, C. (1753) Species plantarum, vol. 1. Salvius, Stockholm, 560 pp.
  17. Mears, J.A. (1980) The Linnean species of Gomphrena L. (Amaranthaceae). Taxon 29 (1): 85–95. https://doi.org/10.2307/1219601
  18. MNHN (2025) The vascular plants collection (P) at the Herbarium of the Muséum national d’Histoire Naturelle (MNHN - Paris). Version 69.422. MNHN - Museum national d’Histoire naturelle. https://doi.org/10.15468/nc6rxy
  19. Ortuño-Limarino, T. & Borsch, T. (2020) Gomphrena (Amaranthaceae, Gomphrenoideae) diversified as a C4 lineage in the New World tropics with specializations in floral and inflorescence morphology, and an escape to Australia. Willdenowia 50 (3): 345–381. https://doi.org/10.3372/wi.50.50301
  20. Ortuño Limarino, T., Gutiérrez-Romero, J., Montesinos-Tubée, D.B. & Lozada-Gobilard, S. (2025) Two New Species of Gomphrena (Amaranthaceae) from Bolivia. International Journal of Plant Biology 16 (2): 51. https://doi.org/10.3390/ijpb16020051
  21. POWO (2025) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Available from: http://www.plantsoftheworldonline.org/ (accessed 25 September 2025)
  22. QGIS.org (2024) QGIS Geographic Information System. Open Source Geospatial Foundation Project. Available from: http://qgis.org (accessed 18 January 2025)
  23. Sandoval-Ortega, M.H. & Zumaya-Mendoza, S. (2023a) Types of some Mexican names in Amaranthaceae s.l. (Caryophyllales). Phytotaxa 597 (1): 8–14. https://doi.org/10.11646/phytotaxa.597.1.2
  24. Sandoval-Ortega, M.H. & Zumaya-Mendoza, S. (2023b) Identities of some names in Gomphrena (Amaranthaceae). Phytotaxa 626 (2): 78–92. https://doi.org/10.11646/phytotaxa.626.2.1
  25. Standley, P.C. (1917) Amaranthaceae. In: Britton, Murrill & Barnhart (eds.) North American Flora, vol. 21 (2). The New York Botanical Garden, New York, pp. 95–169.
  26. Stevens, P.F. (2001 onwards) Angiosperm Phylogeny Website, Version 14. Available from: http://www.mobot.org/MOBOT/research/ (accessed 18 January 2025)
  27. Swartz, O. (1788) Nova genera & species plantarum, seu, Prodromus descriptionum vegetabilium :maximam partem incognitorum quæ sub itinere in Indiam Occidentalem annis 1783–87. Bibliopoliis Acad. M. Swederi, Holmiae, 158 pp. https://doi.org/10.5962/bhl.title.433
  28. Thiers, B. (2025 [continuously updated]) Index Herbariorum. A global directory of public herbaria and associated staff. New york Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih (accessed 25 September 2025)
  29. Turland, N.J., Wiersema, J.H., Barrie, F.R., Gandhi, K.N., Gravendyck, J., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Klopper, R.R., Knapp, S., Kusber, W.-H., Li, D.-Z., May, T.W., Monro, A.M., Prado, J., Price, M.J., Smith, G.F. & Zamora Señoret, J.C. (2025) International Code of Nomenclature for algae, fungi, and plants (Madrid Code). Regnum Vegetabile 162. Chicago: University of Chicago Press. https://doi.org/10.7208/chicago/9780226839479.001.0001
  30. Villaseñor, J.L. (2016) Checklist of the native vascular plants of Mexico. Revista Mexicana de Biodiversidad 87: 559–902. https://doi.org/10.1016/j.rmb.2016.06.017
  31. Zumaya-Mendoza, S. & Sánchez-del Pino, I. (2015) Amaranthaceae. In: Medina-Lemos (ed.) Flora del Valle de Tehuacán-Cuicatlán, Fasc. 133. Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, pp. 1–63.
  32. Zumaya-Mendoza, S. & Sandoval-Ortega, M.H. (2025) An overlooked new species of Gomphrena (Amaranthaceae) endemic to Mexico. Phytotaxa 687 (1): 9–14. https://doi.org/10.11646/phytotaxa.687.1.2

How to Cite

Sandoval-Ortega, M.H., Rodríguez-Pérez, E.J. & Zumaya-Mendoza, S. (2025) A new perennial species of Gomphrena (Amaranthaceae) from Mexico with nomenclatural notes on G. decumbens. Phytotaxa 722 (2): 125–131. https://doi.org/10.11646/phytotaxa.722.2.2