<?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>S2007-42982020000400612</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2601</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The genus Manfreda (Asparagaceae; Agavoideae) in Guerrero, Mexico: richness, distribution and the description of a new species]]></article-title>
<article-title xml:lang="es"><![CDATA[El género Manfreda (Asparagaceae; Agavoideae) en Guerrero, México: riqueza, distribución y la descripción de una especie nueva]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Castro]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zavala-Pérez]]></surname>
<given-names><![CDATA[Jonathan Gilberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Durán]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Durango]]></institution>
<addr-line><![CDATA[Victoria de Durango Durango]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Veracruzana Facultad de Ciencias Biológicas y Agropecuarias ]]></institution>
<addr-line><![CDATA[Tuxpan Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología Comparada]]></institution>
<addr-line><![CDATA[Coyoacán Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>98</volume>
<numero>4</numero>
<fpage>612</fpage>
<lpage>623</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982020000400612&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982020000400612&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982020000400612&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Manfreda includes 37 species distributed from southeastern United States to Honduras. The Pacific Lowlands and Sierra Madre del Sur biogeographic provinces and Guerrero state are the centers of species richness and endemism for the genus in Mexico.  Questions: How is the geographical distribution of Manfreda in Guerrero? Some specimen does not match any known Manfreda species, could be these collections a new species?  Studied species:  Fourteen Manfreda species.  Study site: Guerrero, Mexico.  Methods: The analysis was based on specimens reviewed from 19 herbaria, fieldwork, and records in specialized literature. The richness was quantified by municipalities, biogeographic provinces, and a grid cell, using geographic information systems. The morphological descriptions and the recognition of new species are based on traditional taxonomic methods.  Results:  Database included 86 records for 14 species. The richness is concentrated in 10 cells located in the transition between the Balsas Basin, Transmexican Volcanic Belt and the Sierra Madre del Sur. Some specimens that could not be assigned to any of the known species in Manfreda and proposed as a new species, which is presented with illustrations, an identification key, and a distribution map.  Conclusions:  Given the richness, the endemism, and the low density of collections of Manfreda in Guerrero, we found that the richness is likely greater than previously estimated and it could be expected to find new species. It is advisable to focus on the collection towards the Pacific Lowlands, since there is the greatest richness in Mexico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Manfreda incluye 37 especies distribuidas desde el sureste de Estados Unidos hasta Honduras. Las provincias biogeográficas Tierras Bajas del Pacífico y Sierra Madre del Sur, y el estado de Guerrero son centros de riqueza y endemismo para Manfreda en México.  Preguntas: ¿Cómo es la distribución geográfica de Manfreda en Guerrero? Algunos especímenes no coinciden con ninguna especie conocida de Manfreda, ¿podrían ser estas colectas una especie nueva?  Especies de estudio: Catorce especies de Manfreda.  Sitio de estudio:  Guerrero, México.  Métodos:  El análisis se basó en la revisión de especímenes en 19 herbarios, trabajo de campo y registros en literatura especializada. La riqueza se cuantificó por municipios, provincias biogeográficas y una cuadrícula, utilizando sistemas de información geográfica. Las descripciones morfológicas y el reconocimiento de la especie nueva se basaron en métodos taxonómicos tradicionales.  Resultados:  La base de datos incluyó 86 registros para 14 especies. La riqueza se concentra en 10 celdas en la transición entre la Cuenca del Balsas, Faja Volcánica Transmexicana y Sierra Madre del Sur. Algunos especímenes que no pudieron asignarse a ningún taxon conocido de Manfreda, se proponen como una especie nueva, acompañada de ilustraciones, una clave de identificación y un mapa de distribución.  Conclusiones:  Dada la diversidad, el endemismo y la baja cobertura de las colecciones de Manfreda en Guerrero, esperamos que la riqueza sea mayor a la registrada y que exploraciones futuras revelen la existencia de especies nuevas. Es aconsejable dirigir recolecciones a las Tierras Bajas del Pacífico, donde existe la mayor riqueza en México.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Agavaceae tribe Poliantheae]]></kwd>
<kwd lng="en"><![CDATA[amole]]></kwd>
<kwd lng="en"><![CDATA[Balsas Basin]]></kwd>
<kwd lng="en"><![CDATA[Sierra Madre del Sur]]></kwd>
<kwd lng="en"><![CDATA[Transmexican Volcanic Belt]]></kwd>
<kwd lng="es"><![CDATA[Agavaceae tribu Poliantheae]]></kwd>
<kwd lng="es"><![CDATA[amole]]></kwd>
<kwd lng="es"><![CDATA[Cuenca del Balsas]]></kwd>
<kwd lng="es"><![CDATA[Faja Volcánica Transmexicana]]></kwd>
<kwd lng="es"><![CDATA[Sierra Madre del Sur]]></kwd>
</kwd-group>
</article-meta>
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