<em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico
Background: Stelis subgen. Physosiphon is basically a Meso-American group, and its best-known species is Stelis emarginata, characterized by its reddish orange flowers and distribution along the Gulf of Mexico slope in Mexico and Guatemala. Morphologically similar specimens from the Sierra Madre de...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2023-06-01
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| Series: | Botanical Sciences |
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| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3307 |
| _version_ | 1797790924729745408 |
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| author | Rodolfo Solano Gerardo A. Salazar |
| author_facet | Rodolfo Solano Gerardo A. Salazar |
| author_sort | Rodolfo Solano |
| collection | DOAJ |
| description |
Background: Stelis subgen. Physosiphon is basically a Meso-American group, and its best-known species is Stelis emarginata, characterized by its reddish orange flowers and distribution along the Gulf of Mexico slope in Mexico and Guatemala. Morphologically similar specimens from the Sierra Madre del Sur, on the Pacific slope of Guerrero and Oaxaca could represent a different and undescribed taxon.
Question: Are the Sierra Madre del Sur populations similar to Stelis emarginata a different species?
Study site: Sierra Madre del Sur in Guerrero and Oaxaca, Mexico.
Methods: The description of the new species was based on live and pressed specimens; a line drawing and photographs were made from fresh material; its known localities were georeferenced and displayed on a map of Mexico. A morphological comparison of the new taxon with similar species was done based on specialized literature.
Results: Stelis breviloba is described and illustrated as a new species from southern Guerrero and Oaxaca. It differs from S. emarginata by its shorter plants, less floriferous racemes, smaller flowers, oblong petals, and its allopatric distribution, restricted to the Pacific slope of the Sierra Madre del Sur. A key for the identification of the Mesoamerican species of Stelis subgen. Physosiphon is provided.
Conclusion: Stelis breviloba is an endemic of the Sierra Madre del Sur and probable vicariant species of S. emarginata. Most species of Stelis subgen. Physosiphon (six out of eight) are present in the Mexican flora.
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| first_indexed | 2024-03-13T02:11:26Z |
| format | Article |
| id | doaj.art-cd0afc0e4a364c4db13aed5f9aced277 |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-03-13T02:11:26Z |
| publishDate | 2023-06-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-cd0afc0e4a364c4db13aed5f9aced2772023-07-01T02:51:31ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762023-06-01100110.17129/botsci.3307<em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from MexicoRodolfo Solano0Gerardo A. Salazar1Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Oaxaca, Instituto Politécnico Nacional, OaxacaDepartamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City Background: Stelis subgen. Physosiphon is basically a Meso-American group, and its best-known species is Stelis emarginata, characterized by its reddish orange flowers and distribution along the Gulf of Mexico slope in Mexico and Guatemala. Morphologically similar specimens from the Sierra Madre del Sur, on the Pacific slope of Guerrero and Oaxaca could represent a different and undescribed taxon. Question: Are the Sierra Madre del Sur populations similar to Stelis emarginata a different species? Study site: Sierra Madre del Sur in Guerrero and Oaxaca, Mexico. Methods: The description of the new species was based on live and pressed specimens; a line drawing and photographs were made from fresh material; its known localities were georeferenced and displayed on a map of Mexico. A morphological comparison of the new taxon with similar species was done based on specialized literature. Results: Stelis breviloba is described and illustrated as a new species from southern Guerrero and Oaxaca. It differs from S. emarginata by its shorter plants, less floriferous racemes, smaller flowers, oblong petals, and its allopatric distribution, restricted to the Pacific slope of the Sierra Madre del Sur. A key for the identification of the Mesoamerican species of Stelis subgen. Physosiphon is provided. Conclusion: Stelis breviloba is an endemic of the Sierra Madre del Sur and probable vicariant species of S. emarginata. Most species of Stelis subgen. Physosiphon (six out of eight) are present in the Mexican flora. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3307endemism;Sierra Madre del SurStelis emarginataStelis greenwoodiiStelis subgenus Physosiphon |
| spellingShingle | Rodolfo Solano Gerardo A. Salazar <em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico Botanical Sciences endemism; Sierra Madre del Sur Stelis emarginata Stelis greenwoodii Stelis subgenus Physosiphon |
| title | <em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico |
| title_full | <em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico |
| title_fullStr | <em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico |
| title_full_unstemmed | <em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico |
| title_short | <em>Stelis breviloba</em> (Orchidaceae, Pleurothallidinae), a new species from Mexico |
| title_sort | em stelis breviloba em orchidaceae pleurothallidinae a new species from mexico |
| topic | endemism; Sierra Madre del Sur Stelis emarginata Stelis greenwoodii Stelis subgenus Physosiphon |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3307 |
| work_keys_str_mv | AT rodolfosolano emstelisbrevilobaemorchidaceaepleurothallidinaeanewspeciesfrommexico AT gerardoasalazar emstelisbrevilobaemorchidaceaepleurothallidinaeanewspeciesfrommexico |