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Pollen of the Magnoliopsida in El Volcán (Pamplona, Colombia) I: families Apiaceae, Asteraceae, Cunoniaceae, Ericaceae, Fabaceae, and Gentianaceae

Caldasia (Impact Factor: 0.2). 12/2011; 33(2):619-635.

ABSTRACT In this contribution we describe for the area of El Volcán (Pamplona - Colombia) the families Apiaceae, Asteraceae, Cunoniaceae, Ericaceae, Fabaceae and Gentianaceae, which includes a total of 23 genera and 32 species. The pollen was characterized as well as its systematics implications. To contribute to the paleoecological analysis developed in area, a palynological catalogue is also presented.

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Available from: Jorge Mercado Gomez, May 27, 2014
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    ABSTRACT: RESUMEN Se describen los granos de polen pertenecientes a géneros representativos de la familia Arecaceae con área de distribución en la región Amazónica. De acuerdo con el arreglo sistemático de la familia, se analizaron representantes de las tribus Lepidocaryeae (tres géneros, tres especies), Hyphorbeae (un género, una especie), Iriarteae (cuatro géneros, cuatro especies y siete subespecies), Areceae (cinco géneros, cinco espe-cies y seis subespecies), Cocoeae (cinco géneros, trece especies y dieciséis subespecies) y Geonomeae (dos géneros, dos especies). En general en Arecaceae, los granos son heteropolares, de forma oblado a pro lado esferoidal, intectados, tectados, tectados perforados o semitectados y con procesos supratectales. Los tipos de es-tructura más frecuentes son espinado, liso, fosulado y foveolado. Palabras clave. Palinotaxonomía, Arecaceae, Amazonia, Atlas palinológico. ABSTRACT Pollen grains belonging to the most representative genera of Arecaceae family at the Amazonian region are described. According to the systematic arrangement of the family, taxa ofthe following tribes were analyzed: Lepidocaryeae (three genera and three species), Hyphorbeae (one genera, one species), Iriarteae (four genera, four species and seven subspecies), Areceae (five genera, five species and six subspecies), Cocoeae (five genera, thirteen species and sixteen subspecies) and Geonomeae (two genera and two species). In general those grains are heteropolar, oblato to prolate spheroidal, intectate, tectate or perforated tectate or semitectate, The most frequent structure types are echinate, psilate, fossulate and foveolate.