On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em>
Background: Ageratina, with 167 species, constitutes the most diverse genus of the Mexican Asteraceae and the sixth most diverse of the vascular plants in Mexico. The taxonomy of the genus is complex, due to its number of species and the numerous inadequately delimited taxa or with intricate and co...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2019-06-01
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| Series: | Botanical Sciences |
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| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2143 |
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| author | Oscar Hinojosa-Espinosa José Luis Villaseñor Enrique Ortiz |
| author_facet | Oscar Hinojosa-Espinosa José Luis Villaseñor Enrique Ortiz |
| author_sort | Oscar Hinojosa-Espinosa |
| collection | DOAJ |
| description |
Background: Ageratina, with 167 species, constitutes the most diverse genus of the Mexican Asteraceae and the sixth most diverse of the vascular plants in Mexico. The taxonomy of the genus is complex, due to its number of species and the numerous inadequately delimited taxa or with intricate and confusing nomenclature. In addition, little known species have sometimes remained under the synonymy of another different species, as in the case of A. rivalis, which has been considered as a synonym of A. grandifolia.
Question: Is it possible to recognize Ageratina rivalis as a distinct species of A. grandifolia by critically analyzing its circumscription, nomenclature and geographical distribution?
Taxon: Ageratina grandifolia and A. rivalis.
Study site: Mexico.
Method: A thorough review of herbarium specimens, field material, descriptions and geographic distribution of the species was made to contrast them.
Results: Several differences exist in the morphology and geographical distribution of Ageratina rivalis and A. grandifolia. Descriptions, pictures, distribution maps, synonymy and a key to distinguish them from similar species are provided. The presence of A. grandifolia in Mexico City is also documented. Lectotypes are designated for Eupatorium conspicuum, E. conspicuum var. pueblense, E. grandifolium, and E. rivale.
Conclusions: Morphology and geography support the distinction between A. grandifolia and A. rivalis. However, further research is desirable to corroborate or refute this statement, and especially to clearly circumscribe several similar species that seem to be related. This work contributes to a better understanding of the taxonomy and biogeography of the genus Ageratina in Mexico.
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| first_indexed | 2024-04-12T07:33:11Z |
| format | Article |
| id | doaj.art-05a1e5b0f5764e84bb3a38e873df8f06 |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-04-12T07:33:11Z |
| publishDate | 2019-06-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-05a1e5b0f5764e84bb3a38e873df8f062022-12-22T03:42:00ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762019-06-0197210.17129/botsci.2143On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em>Oscar Hinojosa-EspinosaJosé Luis VillaseñorEnrique Ortiz Background: Ageratina, with 167 species, constitutes the most diverse genus of the Mexican Asteraceae and the sixth most diverse of the vascular plants in Mexico. The taxonomy of the genus is complex, due to its number of species and the numerous inadequately delimited taxa or with intricate and confusing nomenclature. In addition, little known species have sometimes remained under the synonymy of another different species, as in the case of A. rivalis, which has been considered as a synonym of A. grandifolia. Question: Is it possible to recognize Ageratina rivalis as a distinct species of A. grandifolia by critically analyzing its circumscription, nomenclature and geographical distribution? Taxon: Ageratina grandifolia and A. rivalis. Study site: Mexico. Method: A thorough review of herbarium specimens, field material, descriptions and geographic distribution of the species was made to contrast them. Results: Several differences exist in the morphology and geographical distribution of Ageratina rivalis and A. grandifolia. Descriptions, pictures, distribution maps, synonymy and a key to distinguish them from similar species are provided. The presence of A. grandifolia in Mexico City is also documented. Lectotypes are designated for Eupatorium conspicuum, E. conspicuum var. pueblense, E. grandifolium, and E. rivale. Conclusions: Morphology and geography support the distinction between A. grandifolia and A. rivalis. However, further research is desirable to corroborate or refute this statement, and especially to clearly circumscribe several similar species that seem to be related. This work contributes to a better understanding of the taxonomy and biogeography of the genus Ageratina in Mexico. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2143lectotype designationinvasive plantsmedicinal plantsornamental plantstaxonomy |
| spellingShingle | Oscar Hinojosa-Espinosa José Luis Villaseñor Enrique Ortiz On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em> Botanical Sciences lectotype designation invasive plants medicinal plants ornamental plants taxonomy |
| title | On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em> |
| title_full | On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em> |
| title_fullStr | On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em> |
| title_full_unstemmed | On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em> |
| title_short | On the identity of two Mexican species of <em>Ageratina</em> (Eupatorieae, Asteraceae): <em>A. grandifolia</em> and <em>A. rivalis</em> |
| title_sort | on the identity of two mexican species of em ageratina em eupatorieae asteraceae em a grandifolia em and em a rivalis em |
| topic | lectotype designation invasive plants medicinal plants ornamental plants taxonomy |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/2143 |
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