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Issue: Vol. 695 No. 2: 27 Mar. 2025
Type: Article
Published: 2025-03-27
DOI: 10.11646/phytotaxa.695.2.3
Page range: 207-254
Abstract views: 113
PDF downloaded: 115

Quetzalcoatlia (Crassulaceae), high small-scale diversification in western Mexico: a synopsis with four new species

Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Departamento de Geografía y Ordenación Territorial, Centro Universitario de Ciencias Sociales y Humanidades, Universidad de Guadalajara, Los Belenes, Av. José Parres Arias 150, San José del Bajío, C.P. 45132, Zapopan, Jalisco, Mexico
Departamento de Geografía y Ordenación Territorial, Centro Universitario de Ciencias Sociales y Humanidades, Universidad de Guadalajara, Los Belenes, Av. José Parres Arias 150, San José del Bajío, C.P. 45132, Zapopan, Jalisco, Mexico
Independent researcher, Justo Sierra 2807, Vallarta Nte., Guadalajara, C.P. 44690, Jalisco, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional CIIDIR-IPN Unidad Michoacán. Justo Sierra 28, Centro, Jiquilpan, Michoacán, C.P. 59510, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Laboratorio de Botánica, Departamento de Ecología y Recursos Naturales, Centro Universitario de la Costa Sur, Universidad de Guadalajara, Independencia Nacional 151, Autlán de Navarro, C.P. 48900, Jalisco, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico; Departamento de Geografía y Ordenación Territorial, Centro Universitario de Ciencias Sociales y Humanidades, Universidad de Guadalajara, Los Belenes, Av. José Parres Arias 150, San José del Bajío, C.P. 45132, Zapopan, Jalisco, Mexico
Independent researcher, 20 de Noviembre 70, Zapotitán de Hidalgo, municipio de Jocotepec, C.P. 45810, Jalisco, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Herbario IBUG, Instituto de Botánica, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez No. 2100, Nextipac, Zapopan, C.P. 45200, Jalisco, Mexico
Allopatric radiation endemic Graptopetalum haplostemonous Jalisco Michoacán western Mexico Eudicots

Abstract

The genus Quetzalcoatlia was recently segregated from the paraphyletic genus Graptopetalum and consists of six species, confined to western Mexico, in the states of Jalisco, Michoacán and Colima (Vázquez-García et al. 2023). The alpha-taxonomy of Quetzalcoatlia (Crassulaceae, Saxifragales) has been summarized below, which includes the addition of four new species: Q. grulloensis and Q. santanamichelii from the state of Jalisco, and Q. itzicuaroensis and Q. latipetala from the state of Michoacán. One species is endemic to the state of Colima (Q. glassii); five species are endemic to the state of Jalisco (Q. grulloensis, Q. rosanevadoensis, Q. superba, Q. santanamichelii, and Q. trujilloi); three are endemic to the state of Michoacán (Q. itzicuaroensis, Q. kristenii, and Q. latipetala), and one is from unknown origin (Q. pentandra), only confirmed from cultivated material at the Huntington Botanical Garden. Quetzalcoatlia, through a pattern of allopatric speciation, exhibits a high small-scale diversification in western Mexico, with all ten species confined within a radius of ca. 100 km. The Quetzalcoatlia species have potential for horticulture in subtropical and tropical areas. The study provides a distribution map, habitat and phenology data, and a key to species of Quetzalcoatlia. Additionally, the conservation status of each species was evaluated. The results have implications for understanding Quetzalcoatlia biogeography and its adaptive radiation in western Mexico.

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How to Cite

Vázquez-García, J.A., Basáñez, M.C., Acevedo-Rosas, R., Rosales-Martínez, C.S., Padilla-Lepe, J., Martínez-González, R.E., García-Ruiz, I., Gutierrez, B.G., Nieves-Hernández, G., Guzman, R.C., Shalisko, V., Machuca-Núñez, J.A., Hernández-López, L. & Muñiz-Castro, M. Á. (2025) Quetzalcoatlia (Crassulaceae), high small-scale diversification in western Mexico: a synopsis with four new species. Phytotaxa 695: 207–254. https://doi.org/10.11646/phytotaxa.695.2.3