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Botan‪ical Sciences
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Botan‪ical Sciences
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Botan‪ical Sciences
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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

Authors: Julio César Pérez-Jiménez; Felipe de Jesús Eslava-Silva; Karina Jiménez-Dúran; Felipe Gómez-Noguez; Ma. Eugenia Muñiz-Díaz de León;

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

Abstract

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.

Keywords

Licofitas, ornamentación, Esporas, QK1-989, Botany, Helechos, micromorfología

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
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