UNA ESPECIE NUEVA DE Sedum SECCION PachySedum (CRASSULACEAE) Y UN ANALISIS DE LA DIVERSIDAD DEL GENERO EN LA SIERRA MADRE OCCIDENTAL, MEXICO

Translated title of the contribution: A NEW SPECIES OF Sedum SECTION PachySedum (CRASSULACEAE) AND A DIVERSITY ANALYSIS OF THE GENUS IN THE SIERRA MADRE OCCIDENTAL, MEXICO

Arturo Castro-Castro, Heriberto Avila-Gonzalez, Marco Antonio Gonzalez-Bernal, Norma Leticia Piedra-Leandro, Jesus Guadalupe Gonzalez-Gallegos, Edmi Itzel Rojas-Aguilar

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Background: The Mexican Transition Zone represents a center of diversification and an endemism area for Sedum subgenus Sedum. The Sierra Madre del Sur, Mexican Volcanic Belt, Sierra Madre Oriental and Sierra Madre Occidental (SMO) biogeographic provinces contain the highest diversity of the subgenus. The SMO stands out for the endemism of Sedum, that is why additional exploration and study of the group in the area could contribute to the discovery of new species. Question: Could the critical analysis of the morphology of Sedum individuals found in recent explorations in the SMO show the existence of undescribed species? Studied species: The genus Sedum species. Study site and dates: Sierra Madre Occidental, Mexico, during the years 2019-2021. Methods: Several botanical explorations and collections of Sedum were carried out in Durango and Sinaloa. The collected materials were subjected to critical analysis of their morphology to prepare descriptions and comparative tables contrasting morphologically related species. Records of Sedum were obtained, verified, and analyzed to prepare distribution maps in the SMO. Results: Sedum acaxee is proposed as a new species of section Pachysedum. The description is accompanied by photographs, a comparative morphology table, and a list and maps of Sedum in SMO. Conclusions: The high proportion of type localities (26 spp.) and endemism (23 spp.) of Sedum for the SMO highlight the high diversity of the genus in the province and shows the need to continue with botanical explorations in this mountainous complex.

Translated title of the contributionA NEW SPECIES OF Sedum SECTION PachySedum (CRASSULACEAE) AND A DIVERSITY ANALYSIS OF THE GENUS IN THE SIERRA MADRE OCCIDENTAL, MEXICO
Original languageSpanish
Pages (from-to)302-312
Number of pages11
JournalBotanical Sciences
Volume101
Issue number1
DOIs
StatePublished - Jan 2023

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