<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-4298</journal-id>
<journal-title><![CDATA[Botanical Sciences]]></journal-title>
<abbrev-journal-title><![CDATA[Bot. sci]]></abbrev-journal-title>
<issn>2007-4298</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Botánica de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-42982024000200635</article-id>
<article-id pub-id-type="doi">10.17129/botsci.3434</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Reconsideraciones taxonómicas en especies mexicanas de Gonolobus (Apocynaceae-Asclepiadoideae)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cervantes-Meza]]></surname>
<given-names><![CDATA[Christopher Ostwaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Olvera]]></surname>
<given-names><![CDATA[María Hilda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarado-Cárdenas]]></surname>
<given-names><![CDATA[Leonardo Osvaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología Comparada]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,aff2  ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Biología Departamento de Botánica]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Biología Jardín Botánico]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>102</volume>
<numero>2</numero>
<fpage>635</fpage>
<lpage>645</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982024000200635&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982024000200635&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982024000200635&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Antecedentes:  En la revisión de Gonolobus para México se observó que G. fuscus, G. luridus y G. tingens carecen de los apéndices estaminales y anillo faucal típicos del género. Los ejemplares observados de estas especies tienen tricomas glandulares tornándose cristalinos y blancos con la edad y la corona ginostegial doble característicos de Polystemma, por lo que se propone su transferencia a este género.  Preguntas: ¿Los datos morfológicos apoyan la transferencia de las especies aquí estudiadas de Gonolobus a Polystemma? ¿Las plantas aquí estudiadas son coespecíficas a alguna de las especies conocidas para Polystemma?  Especies de estudio: G. fuscus, G. luridus y G. tingens.  Sitio y años de estudio: México.  Métodos: Se revisaron los protólogos, las imágenes digitales del material tipo, los ejemplares de herbario de las especies de Gonolobus consideradas y la literatura pertinente. Las especies bajo estudio se compararon morfológicamente con las especies mexicanas conocidas dentro de las Gonolobinae, empleando para ello el concepto cohesivo de especie.  Resultados: Se propone la transferencia a Polystemma de dos de las especies de Gonolobus aquí estudiadas, así como la sinonimización de Gonolobus tingens Decne., Gonolobus suberifer B.L. Rob., Matelea suberifera y M. crenata.  Conclusiones: Con estos ajustes taxonómicos, Polystemma alcanza las 14 especies, resaltando a México como el principal centro de diversidad del género.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background:  During the revision of Gonolobus for Mexico, it was observed that G. fuscus, G. luridus, and G. tingens lack the staminal appendages and faucal ring typical of the genus. The observed specimens of these species have glandular trichomes, which become crystalline and white with age, and the double gynostegial corona characteristic of Polystemma, so their transfer to this genus is proposed.  Questions:  Do the morphological data support the transfer of the species studied here from Gonolobus to Polystemma? Are the plants studied here cospecific with any of the species known for Polystemma?  Species studied: G. fuscus, G. luridus, and G. tingens.  Location and years of study:  Mexico.  Methods:  Protocols, digital images, and herbarium specimens of Gonolobus, and specialized literature were reviewed. Morphological comparisons were made with Mexican species of Gonolobinae, using the cohesive species concept.  Results:  The transfer of two species of Gonolobus to Polystemma is here proposed, as well as the synonymization of Gonolobus tingens Decne., Gonolobus suberifer B.L. Rob., Matelea suberifera, and M. crenata.  Conclusions:  With these taxonomic adjustments, Polystemma reaches 14 species, highlighting Mexico as the main center of diversity of the genus.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[endemismo]]></kwd>
<kwd lng="es"><![CDATA[Matelea]]></kwd>
<kwd lng="es"><![CDATA[Polystemma]]></kwd>
<kwd lng="es"><![CDATA[revisión taxonómica]]></kwd>
<kwd lng="es"><![CDATA[sinonimia]]></kwd>
<kwd lng="en"><![CDATA[endemism]]></kwd>
<kwd lng="en"><![CDATA[Matelea]]></kwd>
<kwd lng="en"><![CDATA[Polystemma]]></kwd>
<kwd lng="en"><![CDATA[taxonomic revision]]></kwd>
<kwd lng="en"><![CDATA[synonymy]]></kwd>
</kwd-group>
</article-meta>
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