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Issue: Vol. 717 No. 1: 9 Sept. 2025
Type: Article
Published: 2025-09-09
DOI: 10.11646/phytotaxa.717.1.2
Page range: 31-51
Abstract views: 621
PDF downloaded: 13

Opuntia ×soumaya (Cactaceae; Opuntioideae), a new hybrid from Mexico based on morphological, micromorphology and molecular evidence

Departamento de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de México, México
Integrative taxonomy morphology micromorphology Opuntia phylogenetic relationships Eudicots

Abstract

A new nothospecies of the Opuntia from Mexico, Opuntia ×soumaya, is described and illustrated based on morphological characters and molecular evidence. The new species resembles species associated with the Basilares complex, in particular O. megacantha based on cladode shape and spines, but can be distinguished by epidermis, flowers, fruit, seeds and setose hairs of the immature cladodes. The phylogenetic hypothesis was performed with maximum parsimony, maximum likelihood and Bayesian Inference where some Mexican species are included. Opuntia ×soumaya is recovered as an independent species within Opuntia s.str. Morphological characters, distribution, and conservation status of the new species are also presented.

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How to Cite

Martínez-González, C.R. (2025) Opuntia ×soumaya (Cactaceae; Opuntioideae), a new hybrid from Mexico based on morphological, micromorphology and molecular evidence. Phytotaxa 717 (1): 31–51. https://doi.org/10.11646/phytotaxa.717.1.2