<i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico
<i>Ceratozamia dominguezii</i> (Zamiaceae), a new species endemic to the lowland karstic tropical rainforests of southeastern Veracruz, Mexico, is described. The new species is part of the <i>C. robusta</i> species complex, a group of closely related species that share unique...
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MDPI AG
2021-11-01
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| Series: | Taxonomy |
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| Online Access: | https://www.mdpi.com/2673-6500/1/4/26 |
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| author | Miguel Angel Pérez-Farrera José Said Gutiérrez-Ortega Andrew P. Vovides Michael Calonje Pedro Díaz-Jiménez |
| author_facet | Miguel Angel Pérez-Farrera José Said Gutiérrez-Ortega Andrew P. Vovides Michael Calonje Pedro Díaz-Jiménez |
| author_sort | Miguel Angel Pérez-Farrera |
| collection | DOAJ |
| description | <i>Ceratozamia dominguezii</i> (Zamiaceae), a new species endemic to the lowland karstic tropical rainforests of southeastern Veracruz, Mexico, is described. The new species is part of the <i>C. robusta</i> species complex, a group of closely related species that share unique characteristics in the genus, such as robust trunks, large strobili, and long leaves. Compared with the other species in the complex (i.e., <i>C. robusta</i>, <i>C. leptoceras</i>, <i>C. aurantiaca</i> and <i>C. subroseophylla</i>), <i>C. dominguezii</i> has the longest rachides, and is characterized by having papyraceous leaflets, a unique caramel color in emerging leaves, and a dark-violet color in the central portion of distal faces of male and female sporophylls. <i>Ceratozamia dominguezii</i> occurs within the Uxpanapa floristic refuge, which is hypothesized to have sheltered a numerous group of tropical elements during the Neogene glaciations. The recognition of <i>C. dominguezii</i> contributes to clarifying the present diversity of cycads in the genus <i>Ceratozamia</i>, and adds discussion on the role of floristic refugia in the divergence of Neotropical plants in Mexico. |
| first_indexed | 2024-03-10T03:00:22Z |
| format | Article |
| id | doaj.art-c8223d874185473c949201f6cfdf141f |
| institution | Directory Open Access Journal |
| issn | 2673-6500 |
| language | English |
| last_indexed | 2024-03-10T03:00:22Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Taxonomy |
| spelling | doaj.art-c8223d874185473c949201f6cfdf141f2023-11-23T10:47:50ZengMDPI AGTaxonomy2673-65002021-11-011434535910.3390/taxonomy1040026<i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern MexicoMiguel Angel Pérez-Farrera0José Said Gutiérrez-Ortega1Andrew P. Vovides2Michael Calonje3Pedro Díaz-Jiménez4Laboratorio de Ecología Evolutiva, Herbario Eizi Matuda, Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutiérrez 29039, MexicoInstitute for Excellence in Educational Innovation, Chiba University, Chiba 263-8522, JapanRed de Biología Evolutiva, Instituto de Ecología, A.C., Xalapa 91073, MexicoMontgomery Botanical Center, Coral Gables, FL 33156, USACentro de Investigaciones Tropicales, Universidad Veracruzana, Xalapa 91000, Mexico<i>Ceratozamia dominguezii</i> (Zamiaceae), a new species endemic to the lowland karstic tropical rainforests of southeastern Veracruz, Mexico, is described. The new species is part of the <i>C. robusta</i> species complex, a group of closely related species that share unique characteristics in the genus, such as robust trunks, large strobili, and long leaves. Compared with the other species in the complex (i.e., <i>C. robusta</i>, <i>C. leptoceras</i>, <i>C. aurantiaca</i> and <i>C. subroseophylla</i>), <i>C. dominguezii</i> has the longest rachides, and is characterized by having papyraceous leaflets, a unique caramel color in emerging leaves, and a dark-violet color in the central portion of distal faces of male and female sporophylls. <i>Ceratozamia dominguezii</i> occurs within the Uxpanapa floristic refuge, which is hypothesized to have sheltered a numerous group of tropical elements during the Neogene glaciations. The recognition of <i>C. dominguezii</i> contributes to clarifying the present diversity of cycads in the genus <i>Ceratozamia</i>, and adds discussion on the role of floristic refugia in the divergence of Neotropical plants in Mexico.https://www.mdpi.com/2673-6500/1/4/26cycadsendangered speciesfloristic refugiaMesoamericamorphological analysesspecies complex |
| spellingShingle | Miguel Angel Pérez-Farrera José Said Gutiérrez-Ortega Andrew P. Vovides Michael Calonje Pedro Díaz-Jiménez <i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico Taxonomy cycads endangered species floristic refugia Mesoamerica morphological analyses species complex |
| title | <i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico |
| title_full | <i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico |
| title_fullStr | <i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico |
| title_full_unstemmed | <i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico |
| title_short | <i>Ceratozamia dominguezii</i> (Zamiaceae): A New Cycad Species from Southeastern Mexico |
| title_sort | i ceratozamia dominguezii i zamiaceae a new cycad species from southeastern mexico |
| topic | cycads endangered species floristic refugia Mesoamerica morphological analyses species complex |
| url | https://www.mdpi.com/2673-6500/1/4/26 |
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