<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532018000200331</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2018.2.2357</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Conceptos taxonómicos, fenología y epifitismo: el caso de Ceratozamia tenuis (Zamiaceae)]]></article-title>
<article-title xml:lang="en"><![CDATA[Taxonomic concepts, phenology and epiphytism: the case of Ceratozamia tenuis (Zamiaceae)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Domínguez]]></surname>
<given-names><![CDATA[Lilí]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nicolalde-Morejón]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Stevenson]]></surname>
<given-names><![CDATA[Dennis W.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santiago-Jiménez]]></surname>
<given-names><![CDATA[Quiyari]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Veracruzana Instituto de Investigaciones Biológicas Laboratorio de Taxonomía Integrativa]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Veracruzana Centro de Investigaciones Tropicales ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,The New York Botanical Garden  ]]></institution>
<addr-line><![CDATA[NY ]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Veracruzana Facultad de Biología Museo de Zoología]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>89</volume>
<numero>2</numero>
<fpage>331</fpage>
<lpage>339</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532018000200331&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532018000200331&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532018000200331&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En este estudio abordamos la identidad taxonómica de Ceratozamia tenuis (Dyer) D. W. Stev. &amp; Vovides, 2016, un binomio que históricamente ha estado relacionado con el concepto taxonómico de C. mexicana Brongn., 1846. Describimos los estadios fenológicos de C. tenuis, el período reproductivo y el grado de sincronía entre machos y hembras en hábitat natural. Nuestros resultados muestran que el período reproductivo entre machos y hembras no es sincrónico. Todas las hembras de las poblaciones estudiadas emergen de agosto a octubre y exhiben el mismo tiempo de crecimiento, llegando a la receptividad en sincronía. En contraste, los machos tienen un período de emergencia diferencial en la población que se prolonga durante más meses y despliega diferentes ritmos de crecimiento. El período de correspondencia en receptividad entre machos y hembras ocurre de enero a marzo, pero a nivel poblacional algunos machos continuarán su desarrollo y llegarán a la madurez hasta julio. Además, describimos el reciente descubrimiento del epifitismo para la especie, que constituye una condición ecológica que no había sido reportada previamente para el género. Finalmente, discutimos las implicaciones de estos rasgos ecológicos en la dispersión.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This study addresses the taxonomic identity of Ceratozamia tenuis (Dyer) D. W. Stev. &amp; Vovides, 2016, a binomial that has been related historically with the taxonomic concept of C. mexicana Brongn., 1846. We describe the phenological stages of the C. tenuis, the reproductive period, and the degree of synchrony between males and females in natural habitat. Our results show that the reproductive period between pollen plants and ovulate plants is not synchronous. All ovulate plants in the populations studied emerge from August to October and exhibit the same time scale of growth, and thus their receptivity is synchronous. In contrast, pollen plants have a differential emergence period in the populations that lasts for more months and displays different growth rates. The correspondence in receptivity between pollen and ovulate occurs from January to March, but at the population level some pollen plants will continue their development and not reach maturity until July. In addition, we describe the recent discovery of epiphytism for the species; the epiphytic habit constitutes an ecological condition that had not previously been reported for the genus. Finally, we discuss the implications of these ecological features for dispersal.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cícadas]]></kwd>
<kwd lng="es"><![CDATA[Dispersión]]></kwd>
<kwd lng="es"><![CDATA[Fenología reproductiva]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[Taxonomía]]></kwd>
<kwd lng="en"><![CDATA[Cycads]]></kwd>
<kwd lng="en"><![CDATA[Dispersal]]></kwd>
<kwd lng="en"><![CDATA[Reproductive phenology]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="en"><![CDATA[Taxonomy]]></kwd>
</kwd-group>
</article-meta>
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