<?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>0187-7151</journal-id>
<journal-title><![CDATA[Acta botánica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Act. Bot. Mex]]></abbrev-journal-title>
<issn>0187-7151</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Ecología A.C., Centro Regional del Bajío]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-71512017000100097</article-id>
<article-id pub-id-type="doi">10.21829/abm118.2017.1202</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A new species of Bursera (Burseraceae) from the East Cape Region in Baja California Sur, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Una nueva especie de Bursera (Burseraceae) del Este de la Región de Los Cabos en Baja California Sur, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León de la Luz]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medel Narváez]]></surname>
<given-names><![CDATA[Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez Cadena]]></surname>
<given-names><![CDATA[Reymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigaciones Biológicas del Noroeste, S.C. Herbario HCIB ]]></institution>
<addr-line><![CDATA[La Paz Baja California Sur]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<numero>118</numero>
<fpage>97</fpage>
<lpage>103</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-71512017000100097&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-71512017000100097&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-71512017000100097&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background and Aims:  Intensive fieldwork along the shore of the East Cape Region in the Baja California Peninsula by the authors has resulted in the discovery and publication of some new species for the Mexican flora in recent years.  Methods:  An additional novelty found was a tree considered at first to be Bursera microphylla, but a more detailed inspection showed the leaflets to be few in number and broadly obovate-elliptic. These and additional differences of the leaves and flowers warrant recognition of this plant as a new species.  Key results:  We here describe and illustrate Bursera exequielii (Burseraceae), which belongs to section Bursera and we discuss its morphological relationship with B. microphylla, from which it differs mainly by the number, form and size of the leaflets.  Conclusions:  The only known population is threatened due to the mega-touristic developments in the zone.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Antecedentes y Objetivos:  El intensivo trabajo de exploración por parte de los autores sobre la costa Este en la Región de los Cabos, en la península de Baja California, ha resultado recientemente en el descubrimiento y publicación de varias nuevas especies para la flora Mexicana.  Métodos:  Una novedad adicional es un árbol identificado inicialmente como Bursera microphylla, pero una inspección más detallada mostró que los foliolos eran pocos en número y ampliamente obovados-elípticos. Estas y otras diferencias de las hojas y las flores justifican el reconocimiento de esta planta como una nueva especie.  Resultados clave:  Ilustramos y describimos el nuevo taxon Bursera exequielii (Burseraceae), el cual pertenece a la sección Bursera, y se discute su relación morfológica con B. microphylla de la cual difiere principalmente por el número, la forma, y el tamaño de los foliolos.  Conclusiones:  La única población conocida se encuentra amenazada por mega-desarrollos turísticos en la zona.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[biodiversity]]></kwd>
<kwd lng="en"><![CDATA[new species]]></kwd>
<kwd lng="en"><![CDATA[Sonoran Desert]]></kwd>
<kwd lng="en"><![CDATA[taxonomy]]></kwd>
<kwd lng="es"><![CDATA[biodiversidad]]></kwd>
<kwd lng="es"><![CDATA[Desierto Sonorense]]></kwd>
<kwd lng="es"><![CDATA[nueva especie]]></kwd>
<kwd lng="es"><![CDATA[taxonomía]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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