<?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>S2007-42982020000300517</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2424</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio Palinológico de los helechos y licofitas de la Zona Núcleo Poniente de la Reserva Ecológica del Pedregal de San Ángel, Ciudad de México, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Palynological study of the ferns and lycophytes of the core west zone of the Ecological Reserve of the Pedregal of San Angel, Mexico City, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Jiménez]]></surname>
<given-names><![CDATA[Julio César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Eslava-Silva]]></surname>
<given-names><![CDATA[Felipe de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Dúran]]></surname>
<given-names><![CDATA[Karina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Noguez]]></surname>
<given-names><![CDATA[Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñiz-Díaz de León]]></surname>
<given-names><![CDATA[Ma. Eugenia]]></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 ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Ciencias Químico Biológicas ]]></institution>
<addr-line><![CDATA[ Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>98</volume>
<numero>3</numero>
<fpage>517</fpage>
<lpage>532</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982020000300517&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982020000300517&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982020000300517&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  La Reserva Ecológica del Pedregal de San Ángel (REPSA) corresponde a un matorral xerófilo. En ella, los helechos y licofitas crecen en diversos microhábitats. En esta zona se han realizado investigaciones ecológicas y taxonómicas de la vegetación donde se han incluido las pteridofitas, sin embargo, no existen estudios palinológicos para este grupo de plantas.  Pregunta:  ¿Cuál es la micromorfología de las esporas de las especies de helechos y licofitas de la REPSA?  Especies bajo estudio:  Helechos y licofitas.  Sitio de estudio:  Zona Núcleo Poniente (ZNP) de la Reserva Ecológica del Pedregal de San Ángel, Ciudad Universitaria, Ciudad de México, México. Agosto 2013 a septiembre 2016.  Métodos:  Se recolectaron en campo ejemplares de referencia de helechos y licofitas, se identificaron y se depositaron en el Herbario Nacional (MEXU). Se obtuvieron las esporas a partir de pinnas fértiles, se montaron para observarse y medirse en microscopía fotónica (MF) y microscopía electrónica de barrido (MEB). Se obtuvieron las microfotografías y se realizó la descripción palinológica.  Resultados:  Se presenta la palinología de 23 especies de helechos y dos de licofitas, correspondientes a 16 géneros. Se describe por primera vez la micromorfología de las esporas de: Gaga decomposita, G. membranacea, Myriopteris allosuroides, Pellaea cordifolia, Pellaea villosa, Pleopeltis thyssanolepis, Ophioglossum engelmannii y Selaginella sartorii. Para las restantes especies se complementa y/o corrobora la micromorfología.  Conclusiones:  Los datos aportados contribuyen al conocimiento palinológico de las especies de licofitas y helechos presentes en la REPSA, y son caracteres de gran utilidad para la taxonomía de las especies.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  The Pedregal of San Angel Ecological Reserve (REPSA) constitutes a xerophilous scrub. In the Reserve, both ferns and lycophytes (pteridophytes) grow in different microhabitats. Ecological and taxonomic studies of the vegetation where pteridophytes have been included have been carried out in this area. However, there are no palynological studies from this group of plants in the REPSA.  Question:  ¿What is the spore micromorphology of the fern and lycophyte species from the REPSA?  Studied species:  Ferns and lycophytes  Study site:  West Core Zone (ZNP) in The Pedregal of San Ángel Ecological Reserve, Ciudad Universitaria, (South of Mexico City) Mexico City, Mexico. August 2013 to September 2016.  Methods:  Reference specimens from ferns and lycophytes were collected, identified, and deposited at the National Herbarium (MEXU). Spores were recovered from fertile pinnae and mounted for photonic microscopy and scanning electron microscopy. Microscopy images were captured to carry out the palynological description.  Results:  The palynology of 23 species of ferns and two species of lycophytes, corresponding to 16 genera, is presented. The spore micromorphology of Gaga decomposita, G. membranacea, Myriopteris allosuroides, Pellaea cordifolia, Pellaea villosa, Pleopeltis thyssanolepis, Ophioglossum engelmannii and Selaginella sartorii, is described here for the first time. Micromorphology is supplemented and / or confirmed for the remaining species.  Conclusions:  Data provided in this work contribute to the palynological knowledge of the species of lycophytes and ferns present in the REPSA and are useful characters for the taxonomy of species.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Esporas]]></kwd>
<kwd lng="es"><![CDATA[helechos]]></kwd>
<kwd lng="es"><![CDATA[licofitas]]></kwd>
<kwd lng="es"><![CDATA[micromorfología]]></kwd>
<kwd lng="es"><![CDATA[ornamentación]]></kwd>
<kwd lng="en"><![CDATA[Ferns]]></kwd>
<kwd lng="en"><![CDATA[lycophytes]]></kwd>
<kwd lng="en"><![CDATA[micromorphology]]></kwd>
<kwd lng="en"><![CDATA[ornamentation]]></kwd>
<kwd lng="en"><![CDATA[spores]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arreguín]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios-Chávez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroz]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
</person-group>
<source><![CDATA[Pteridoflora ilustrada del estado de Querétaro, México]]></source>
<year>2001</year>
<page-range>470</page-range><publisher-loc><![CDATA[DF México ]]></publisher-loc>
<publisher-name><![CDATA[Escuela Nacional de Ciencias Biológicas IPN]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arreguín-Sánchez]]></surname>
<given-names><![CDATA[MDL]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Nava]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Palacio-Chávez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroz-García]]></surname>
<given-names><![CDATA[DLQ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morfología de las esporas de pteridófitas isospóreas del estado de Querétaro, México]]></article-title>
<source><![CDATA[Polibotánica]]></source>
<year>1996</year>
<volume>2</volume>
<page-range>10-60</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arreguín-Sánchez]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre-Claverán]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morfología de las esporas isospóreas triletes de Pteridófitas de Nuevo León, México]]></article-title>
<source><![CDATA[Palynologica et Paleobotanica]]></source>
<year>1990</year>
<volume>2</volume>
<page-range>5-62</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arreguín-Sánchez]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Nava]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Palacios-Chávez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroz-García]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morfología de las esporas de pteridófitas isospóreas del estado de Querétaro, México]]></article-title>
<source><![CDATA[Polibotánica]]></source>
<year>1996</year>
<volume>2</volume>
<page-range>10-60</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arreguín-Sánchez]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morfología de las esporas de la subfamilia Asplenoideae del Valle de México]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Montúfar]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudios Palinológicos y Paleoetnobotánicos]]></source>
<year>1985</year>
<page-range>7-22</page-range><publisher-loc><![CDATA[México, DF ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Nacional de Antropología e Historia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barrington]]></surname>
<given-names><![CDATA[DS]]></given-names>
</name>
<name>
<surname><![CDATA[Paris]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Ranker]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Systematic inferences from spore and stomate size in the ferns]]></article-title>
<source><![CDATA[American Fern Journal]]></source>
<year>1986</year>
<volume>76</volume>
<page-range>149-59</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Benham]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[Windham]]></surname>
<given-names><![CDATA[MD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Generic affinities of the star-scaled cloak ferns]]></article-title>
<source><![CDATA[American Fern Journal]]></source>
<year>1992</year>
<volume>82</volume>
<page-range>47-58</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brown]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[What is the role of spores in Fern taxonomy?]]></article-title>
<source><![CDATA[American Fern Journal]]></source>
<year>1960</year>
<volume>50</volume>
<page-range>6-14</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cano-Santana]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Domínguez-Álvarez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Moyers- Arévalo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez- López]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[García-Jiménez]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<source><![CDATA[La Reserva Ecológica Del Pedregal De San Ángel: Estudios Ecosistémicos]]></source>
<year>2009</year>
<conf-name><![CDATA[ VIICongreso sobre Áreas Naturales Protegidas de México]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chao]]></surname>
<given-names><![CDATA[YS]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[YM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore morphology and its systematic implication in Pteris (Pteridaceae)]]></article-title>
<source><![CDATA[PLOS ONE]]></source>
<year>2018</year>
<volume>13</volume>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Contreras-Duarte]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Bogotá-Ángel]]></surname>
<given-names><![CDATA[RG]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez-Bulla]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Atlas de las esporas de pteridófitos de Chipaque (Cundinamarca, Colombia)]]></article-title>
<source><![CDATA[Caldasia]]></source>
<year>2006</year>
<volume>28</volume>
<page-range>327-57</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Devi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nayar]]></surname>
<given-names><![CDATA[BK]]></given-names>
</name>
<name>
<surname><![CDATA[Knobloch]]></surname>
<given-names><![CDATA[IW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore Morphology of some American Species of Cheilanthes and Notholaena]]></article-title>
<source><![CDATA[Grana]]></source>
<year>1971</year>
<volume>11</volume>
<page-range>27-35</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dyer]]></surname>
<given-names><![CDATA[AF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Natural soil spore banks - Can they be used to retrive lost ferns?]]></article-title>
<source><![CDATA[Biodiversity and Conservation]]></source>
<year>1994</year>
<volume>3</volume>
<page-range>160-75</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dyer]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
<name>
<surname><![CDATA[Savolainen]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Apomixis and reticulate evolution in the Asplenium monanthes fern complex]]></article-title>
<source><![CDATA[Annals of Botany]]></source>
<year>2012</year>
<volume>110</volume>
<page-range>1515-29</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Erdtman]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Sorsa]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Pollen and Spore Morphology / Plant Taxonomy: Pteridophyta]]></source>
<year>1971</year>
<publisher-loc><![CDATA[Estocolmo ]]></publisher-loc>
<publisher-name><![CDATA[Almqvist &amp; Wiksell]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Freitas]]></surname>
<given-names><![CDATA[AG de]]></given-names>
</name>
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Toledo]]></surname>
<given-names><![CDATA[MB]]></given-names>
</name>
<name>
<surname><![CDATA[Mendonça]]></surname>
<given-names><![CDATA[CBF]]></given-names>
</name>
<name>
<surname><![CDATA[Gonçalves-Esteves]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bryophyte and Pteridophyte spores and other palynomorphs in quaternary marine sediments from Campos Basin, Southeastern Brazil: Core BU-91-GL-05]]></article-title>
<source><![CDATA[Acta Botanica Brasilica]]></source>
<year>2015</year>
<volume>29</volume>
<page-range>161-74</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gastony]]></surname>
<given-names><![CDATA[GJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore morphology in the Cyatheaceae. III. The genus Trichipteris]]></article-title>
<source><![CDATA[American Journal of Botany]]></source>
<year>1979</year>
<volume>66</volume>
<page-range>1238-60</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Noguez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-García]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza-Ruíz]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Orozco-Segovia]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Flora Palinológica de los Helechos y Licofitas de Río Malila, Hidalgo, México]]></article-title>
<source><![CDATA[Botanical Sciences]]></source>
<year>2013</year>
<volume>91</volume>
<page-range>135-54</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Noguez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-García]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza-Ruiz]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Orozco-Segovia]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fern and lycopod spores rain in a cloud forest of Hidalgo, Mexico]]></article-title>
<source><![CDATA[Aerobiologia]]></source>
<year>2017</year>
<volume>33</volume>
<page-range>23-35</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hagenah]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore studies in the genus Cystopteris I. The distribution of Cystopteris with non-spiny spores in North America]]></article-title>
<source><![CDATA[Rhodora]]></source>
<year>1961</year>
<volume>63</volume>
<page-range>181-93</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Hernández]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Terrazas]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Delgadillo]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Dryopteris patula complex (Dryopteridaceae) in Mexico: morphometric analyses]]></article-title>
<source><![CDATA[Botanical Sciences]]></source>
<year>2009</year>
<volume>85</volume>
<page-range>103-12</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hill]]></surname>
<given-names><![CDATA[SR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore morphology of Anemia subgenus Coptophyllum]]></article-title>
<source><![CDATA[American Fern Journal]]></source>
<year>1977</year>
<volume>67</volume>
<page-range>11-7</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hill]]></surname>
<given-names><![CDATA[SR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore morphology of Anemia subgenus Anemia]]></article-title>
<source><![CDATA[American Fern Journal]]></source>
<year>1979</year>
<volume>69</volume>
<page-range>71-9</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knobloch]]></surname>
<given-names><![CDATA[IW]]></given-names>
</name>
<name>
<surname><![CDATA[Spink]]></surname>
<given-names><![CDATA[GC]]></given-names>
</name>
<name>
<surname><![CDATA[Fulfs]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preliminary scanning electron microscope observations on the relief of the spore wall of some Cheilanthoid ferns]]></article-title>
<source><![CDATA[Grana]]></source>
<year>1971</year>
<volume>11</volume>
<page-range>23-6</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knobloch]]></surname>
<given-names><![CDATA[IW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The spore pattern in some species of Cheilanthes]]></article-title>
<source><![CDATA[American Journal of Botany]]></source>
<year>1969</year>
<volume>56</volume>
<page-range>646-53</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Korall]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[WA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Megaspore morphology in the Selaginellaceae in a phylogenetic context: A study of the megaspore surface and wall structure using scanning electron microscopy]]></article-title>
<source><![CDATA[Grana]]></source>
<year>2006</year>
<volume>45</volume>
<page-range>22-60</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kremp]]></surname>
<given-names><![CDATA[GOW]]></given-names>
</name>
<name>
<surname><![CDATA[Kawasaki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<source><![CDATA[The spores of the pteridophytes]]></source>
<year>1972</year>
<publisher-loc><![CDATA[Tokio ]]></publisher-loc>
<publisher-name><![CDATA[Hirokawa Publishing Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kremp]]></surname>
<given-names><![CDATA[GOW]]></given-names>
</name>
</person-group>
<source><![CDATA[Morphologic Encyclopedia of Palynology, An International Collection of Definitions and Illustrations of Spores and Pollen]]></source>
<year>1965</year>
<publisher-loc><![CDATA[Tucson ]]></publisher-loc>
<publisher-name><![CDATA[The University of Arizona Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Labiak]]></surname>
<given-names><![CDATA[PH]]></given-names>
</name>
<name>
<surname><![CDATA[Rouhan]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Sundue]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phylogeny and taxonomy of Leucotrichum (Polypodiaceae): A new genus of grammitid ferns from the Neotropics]]></article-title>
<source><![CDATA[Taxon]]></source>
<year>2010</year>
<volume>59</volume>
<page-range>911-21</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lehtonen]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Tuomisto]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Rouhan]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Christenhusz]]></surname>
<given-names><![CDATA[MJM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phylogenetics and classification of the pantropical fern family Lindsaeaceae]]></article-title>
<source><![CDATA[Botanical Journal of the Linnean Society]]></source>
<year>2010</year>
<volume>163</volume>
<page-range>305-59</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lellinger]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Classification of Spore Ornamentation in the Pteridophyta]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Johns]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Holttum Memorial Volume: published to commemorate the centenary of the birth of Professor R. E. Holttum]]></source>
<year>1997</year>
<publisher-loc><![CDATA[UK ]]></publisher-loc>
<publisher-name><![CDATA[Royal Botanical Gardens]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lellinger]]></surname>
<given-names><![CDATA[DB]]></given-names>
</name>
</person-group>
<source><![CDATA[A Modern Multilingual Glossary for Taxonomic Pteridology. Pteridologia 3]]></source>
<year>2002</year>
<publisher-loc><![CDATA[Washington, DC ]]></publisher-loc>
<publisher-name><![CDATA[American Fern Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lloyd]]></surname>
<given-names><![CDATA[RM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The perispore in Polypodium and related genera (Polypodiaceae)]]></article-title>
<source><![CDATA[Canadian Journal of Botany]]></source>
<year>1981</year>
<volume>59</volume>
<page-range>175-89</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lot]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Chiang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de herbario: Administración y manejo de colecciones y preparación de ejemplares botánicos]]></source>
<year>1986</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Consejo Nacional de la Flora de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mickel]]></surname>
<given-names><![CDATA[JT]]></given-names>
</name>
<name>
<surname><![CDATA[Beitel]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<source><![CDATA[Pteridophyte Flora de Oaxaca, México]]></source>
<year>1988</year>
<publisher-loc><![CDATA[New York USA ]]></publisher-loc>
<publisher-name><![CDATA[New York Botanical Garden]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mickel]]></surname>
<given-names><![CDATA[JT]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
</person-group>
<source><![CDATA[The Pteridophytes of Mexico]]></source>
<year>2004</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Memories of the New York Botanical Garden. NY press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moran]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
</person-group>
<source><![CDATA[A Natural History of Ferns]]></source>
<year>2004</year>
<publisher-loc><![CDATA[Portland ]]></publisher-loc>
<publisher-name><![CDATA[Timber Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moran]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Hanks]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[Rouhan]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore morphology in relation to phylogeny in the fern genus Elaphoglossum (Dryopteridaceae)]]></article-title>
<source><![CDATA[International Journal of Plant Sciences]]></source>
<year>2007</year>
<volume>168</volume>
<page-range>905-29</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moran]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Riba]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Psilotaceae a Salviniaceae]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Davidse]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Sousa]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Knapp]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Flora Mesoamericana]]></source>
<year>1995</year>
<volume>Vol. 1. Psilotaceae a Slavinaceae</volume>
<page-range>300</page-range><publisher-loc><![CDATA[México, DF ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Mussouri Botanical Garden, The Natural History Museum (London)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morbelli]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Ponce]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Palynological Study of Cheilanthes and Astrolepis (Pteridaceae) Species from Northwestern Argentina]]></article-title>
<source><![CDATA[American Fern Journal]]></source>
<year>1997</year>
<volume>87</volume>
<page-range>51-65</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muñiz-Díaz de León]]></surname>
<given-names><![CDATA[ME]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-García]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Márquez-Guzmán]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza-Ruiz]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Developmental gametophyte morphology of seven species of Thelypteris subg. Cyclosorus (Thelypteridaceae)]]></article-title>
<source><![CDATA[Micron]]></source>
<year>2008</year>
<volume>39</volume>
<page-range>1351-62</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murillo]]></surname>
<given-names><![CDATA[MT]]></given-names>
</name>
<name>
<surname><![CDATA[Bless]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spores of recent Colombian pteridophyta. II. Monolete spores]]></article-title>
<source><![CDATA[Review of Palaeobotany and Palynology]]></source>
<year>1978</year>
<volume>25</volume>
<page-range>319-65</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murtaza]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Asghar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Majid]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Waheed]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Mirza]]></surname>
<given-names><![CDATA[SN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anatomical and palynological studies on some Filicales from Neelum valley, Muzaffarabad, Azad Kashmir]]></article-title>
<source><![CDATA[Pakistan Journal of Botany]]></source>
<year>2006</year>
<volume>38</volume>
<page-range>921</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nayar]]></surname>
<given-names><![CDATA[BK]]></given-names>
</name>
<name>
<surname><![CDATA[Devi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore morphology of the Pteridaceae I. the Pteridoid ferns]]></article-title>
<source><![CDATA[Grana]]></source>
<year>1966</year>
<volume>6</volume>
<page-range>476-502</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nayar]]></surname>
<given-names><![CDATA[BK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The morphology of some species of Cheilanthes]]></article-title>
<source><![CDATA[Journal of the Linnean Society]]></source>
<year>1963</year>
<volume>58</volume>
<page-range>449-60</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parks]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Dyer]]></surname>
<given-names><![CDATA[AF]]></given-names>
</name>
<name>
<surname><![CDATA[Lindsay]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Allozyme, spore and frond variation in some Scottish populations of the ferns Cystopteris dickieana and Cystopteris fragilis]]></article-title>
<source><![CDATA[Edinburgh Journal of Botany]]></source>
<year>2000</year>
<volume>57</volume>
<page-range>83-105</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<collab>PPG</collab>
<article-title xml:lang=""><![CDATA[A community-based classification for extant ferns and lycophytes]]></article-title>
<source><![CDATA[Journal of Systematics and Evolution]]></source>
<year>2016</year>
<volume>54</volume>
<page-range>563-603</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Punt]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Hoen]]></surname>
<given-names><![CDATA[PP]]></given-names>
</name>
<name>
<surname><![CDATA[Blackmore]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nilsson]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Le Thomas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Glossary of pollen and spore terminology]]></article-title>
<source><![CDATA[Review Paleobotany and Palynology]]></source>
<year>2007</year>
<volume>143</volume>
<page-range>1-81</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez-Valencia]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Sanín]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Pardo-Trujillo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análisis morfológico de las esporas de Serpocaulon (Polypodiaceae) de la Cordillera Central de Colombia]]></article-title>
<source><![CDATA[Caldasia]]></source>
<year>2013</year>
<volume>35</volume>
<page-range>177-97</page-range></nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez-Valencia]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Sanín]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spores of Serpocaulon (Polypodiaceae): morphometric and phylogenetic analyses]]></article-title>
<source><![CDATA[Grana]]></source>
<year>2017</year>
<volume>56</volume>
<page-range>187-203</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rouhan]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Hanks]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[McClelland]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Moran]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preliminary phylogenetic analysis of the fern genus Lomariopsis (Lomariopsidaceae)]]></article-title>
<source><![CDATA[Brittona]]></source>
<year>2007</year>
<volume>59</volume>
<page-range>115-28</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Pryer]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Structure and function of spores in the aquatic heterosporous fern family Marsileaceae]]></article-title>
<source><![CDATA[International Journal of Plant Sciences]]></source>
<year>2002</year>
<volume>163</volume>
<page-range>485-505</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Srivastava]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Uniyal]]></surname>
<given-names><![CDATA[PL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In-vitro developmental studies of Cheilanthes farinosa (Forssk.) Kaulf. (Pteridaceae)]]></article-title>
<source><![CDATA[Telopea]]></source>
<year>2014</year>
<volume>17</volume>
<page-range>87-91</page-range></nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tryon]]></surname>
<given-names><![CDATA[AF]]></given-names>
</name>
<name>
<surname><![CDATA[Lugardon]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<source><![CDATA[Spores of the Pteridophyta: Surface, Wall Structure and Diversity Based on Electron Microscope Studies]]></source>
<year>1991</year>
<publisher-loc><![CDATA[New York NY ]]></publisher-loc>
<publisher-name><![CDATA[Springer-Verlag]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tryon]]></surname>
<given-names><![CDATA[RM]]></given-names>
</name>
<name>
<surname><![CDATA[Tryon]]></surname>
<given-names><![CDATA[AF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Additional taxonomic and nomenclatural notes on ferns]]></article-title>
<source><![CDATA[Rhodora]]></source>
<year>1982</year>
<volume>84</volume>
<page-range>125-30</page-range></nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Valiente-Banuet]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[De Luna]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Una lista florística actualizada para la Reserva del Pedregal de San Ángel, México D.F]]></article-title>
<source><![CDATA[Acta Botanica Mexicana]]></source>
<year>1990</year>
<volume>9</volume>
<page-range>13-30</page-range></nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Venable]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Size-number trade-offs and the variation of seed size with plant resource status]]></article-title>
<source><![CDATA[The American Naturalist]]></source>
<year>1992</year>
<volume>140</volume>
<page-range>287-304</page-range></nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vivero-Barón]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Arreguín-Sánchez]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroz-García]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández- Nava]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Acosta-Castellanos]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seguimiento del Ciclo de Vida de Woodsia mollis (kaulf.) J. Sm. (Athyriaceae-Pteridophyta) en Tres Sustratos Naturales]]></article-title>
<source><![CDATA[Polibotánica]]></source>
<year>2012</year>
<volume>33</volume>
<page-range>75-83</page-range></nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wagner]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Structure of spores in relation to fern phylogeny]]></article-title>
<source><![CDATA[Annals of the Missouri Botanical Garden]]></source>
<year>1974</year>
<volume>61</volume>
<page-range>332-53</page-range></nlm-citation>
</ref>
<ref id="B60">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wood]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Spore variation in Thelypteridaceae]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Jeremy]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
<name>
<surname><![CDATA[Crabbe]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Thomas]]></surname>
<given-names><![CDATA[BA]]></given-names>
</name>
</person-group>
<source><![CDATA[The Phylogeny and Classification of the Ferns]]></source>
<year>1973</year>
<page-range>191-201</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
