<?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>0120-2812</journal-id>
<journal-title><![CDATA[Acta Agronómica]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Agron.]]></abbrev-journal-title>
<issn>0120-2812</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-28122007000100007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Morfología y anatomía de las flores y semillas de pronto alivio]]></article-title>
<article-title xml:lang="en"><![CDATA[Morphology and anatomy of flowers and seeds of Lippia alba.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[Aida M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vallejo C]]></surname>
<given-names><![CDATA[Franco A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez O]]></surname>
<given-names><![CDATA[Manuel S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Palmira Valle]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2007</year>
</pub-date>
<volume>56</volume>
<numero>1</numero>
<fpage>7</fpage>
<lpage>12</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-28122007000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-28122007000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-28122007000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la descripción se utilizaron tres accesiones de Lippia alba provenientes de Llanos Orientales y Valle (Colombia) y Costa Rica (Centro América). Las inflorescencias son espigas racemosas simples, de flores sésiles, color lila pálido y dispuestas a lo largo del raquis, localizadas en las axilas, en pares y opuestas. Las flores dispuestas en ramas principales, secundarias y terciarias presentan dos sépalos blancos, pubescentes y miden 1.5 mm de longitud. Cubriendo cada par de sépalos hay una bráctea verde, ovada y posee una longitud entre 3 y 5 mm. Una flor abierta mide hasta 7.0 mm y entre 3 y 4 mm de ancho. Son gamopétalas, zigomorfas, pubescentes, tubulares, de color lila, bilabiadas, con cuatro pétalos, hipóginas, gineceo sincárpico y bicarpelar, ovario súpero, verde blanquecino, estilo blanquecino y estigma amarillo verdoso y forma capitada. Las anteras miden 0.2 mm de largo. El fruto es diaquenio, mide alrededor de 2 mm de largo y 1.8 mm de ancho, el pericarpio es blanco, duro y seco, el epicarpio es duro, café y pubescente. La semilla es triangular y mide entre 0.8 mm de largo y 0.3 mm de ancho.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY For description three accesions of L. alba from Llanos Orientales and Valle (Colombia) and Costa Rica (Central America) were used. The inflorescences are simples and racemoses. The flowers are small, sessiles, lilac color, disposed trought of the rachis, localizated in the axillas, coupled and apposited. The flowers in primary, secondary and tertiary branches present two white sepals, pubescents with 1.5 mm of length. There is a green bract covering the sepals with a length between 3.0 and 5.0 mm. An openned flower measures up to 7.0 mm and between 3.0 and 4.0 mm of wide. They are gamopetalous, zygomorphic, pubescents, tubulars, bilabiates, with four petals, hypogynous, syncarpic gynaeceum with two carpels, upper ovary, white-green style, yellow - greenish stigma. The anthers measure 0.2 mm of length. The fruit is a diachene, with two small seeds, its fruit size is around 2.0 mm of length and 1.8 mm of wide; white, hard and dry coffee pericarp, pubescent and hard epicarp. The seed had a triangular form which measure between 0,8 mm in length and 0,3 mm wide.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Lippia alba]]></kwd>
<kwd lng="es"><![CDATA[Verbenaceae]]></kwd>
<kwd lng="es"><![CDATA[biología floral]]></kwd>
<kwd lng="es"><![CDATA[semillas]]></kwd>
<kwd lng="en"><![CDATA[Lippia alba]]></kwd>
<kwd lng="en"><![CDATA[Verbenaceae]]></kwd>
<kwd lng="en"><![CDATA[floral biology]]></kwd>
<kwd lng="en"><![CDATA[seeds]]></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[Becerra]]></surname>
<given-names><![CDATA[L. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Chaparro]]></surname>
<given-names><![CDATA[M. de V]]></given-names>
</name>
</person-group>
<source><![CDATA[Morfología y Anatomía Vegetal]]></source>
<year>1999</year>
<page-range>212</page-range><publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Corner]]></surname>
<given-names><![CDATA[E.J.H]]></given-names>
</name>
</person-group>
<source><![CDATA[The seed of dicotyledons]]></source>
<year>1976</year>
<volume>Vol.1</volume>
<page-range>276</page-range><publisher-name><![CDATA[Cambridge University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez A]]></surname>
<given-names><![CDATA[J. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernal]]></surname>
<given-names><![CDATA[H. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Cáceres]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Fundamentos de Agrotecnología de cultivo de plantas medicinales iberoamericanas]]></source>
<year>2000</year>
<page-range>253-68</page-range><publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[CYTED, SECAB]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Orellana]]></surname>
<given-names><![CDATA[P. D.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[J.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Cáceres]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Anotaciones sobre el cultivo de pronto alivio]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Guatemala ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de San Carlos de Guatemala]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Standley]]></surname>
<given-names><![CDATA[P.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Willians]]></surname>
<given-names><![CDATA[L.O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Verbenaceae]]></article-title>
<source><![CDATA[Fieldiana Botany]]></source>
<year>1970</year>
<month>.</month>
<volume>Vol. 24</volume>
<numero>No. 1/2</numero>
<issue>No. 1/2</issue>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stashenko]]></surname>
<given-names><![CDATA[E. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaramillo]]></surname>
<given-names><![CDATA[B. E]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[J. R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparación de la composición química y de la actividad antioxidante in vitro de los metabolitos secundarios volátiles de plantas de la familia Verbenaceae]]></article-title>
<source><![CDATA[Rev. Acad. Col. Cienc. Exact. Fis. Nat]]></source>
<year>2003</year>
<volume>Vol. 27</volume>
<numero>105</numero>
<issue>105</issue>
<page-range>579-97</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
