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Botan‪ical Sciences
Article . 2021 . Peer-reviewed
License: CC BY NC
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Botan‪ical Sciences
Article
License: CC BY NC
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Botan‪ical Sciences
Article . 2021
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Las afinidades meridionales de la flora de los bosques montanos de México

Authors: Jerzy Rzedowski;

Las afinidades meridionales de la flora de los bosques montanos de México

Abstract

Antecedentes: En la flora de los bosques de coníferas, encinos y mesófilos de montaña de México destacan los elementos fitogeográficos septentrional y meridional; este último se analiza en la presente contribución. Pregunta: ¿En cuál de los tipos de vegetación enumerados es más manifiesta la afinidad florística meridional? Grupo estudiado: Fanerógamas (Spermatophyta). Área de estudio: Principalmente México y Sudamérica. Métodos: Se realizó la revisión de literatura para integrar una lista de géneros de la flora de nuestro país de distribución esencialmente restringida al continente americano y que están más diversificados en Sudamérica que en México. Se depuró con la consulta de revisiones taxonómicas y de estudios de la filogenia; se aceptaron solamente los de probable origen en el hemisferio sur y pertenecientes a familias de la misma procedencia. Resultados: Se completó un catálogo de 84 géneros para 39 familias. Para cada uno se proporciona el número de especies conocidas en total y las presentes en México. Se señala su distribución geográfica, mediante la definición de sus extremos boreal y austral. Conclusiones: Con base en la lista fue posible definir que a) la afinidad meridional es más pronunciada en la flora del bosque mesófilo de montaña que en los de coníferas y encino. b) la mayor parte de los elementos australes encuentra el límite de su distribución en el centro de México, algunos en Chiapas y pocos hasta Canadá. c) Aunque es probable que el arribo de algunos es relativamente reciente, otros estuvieron presentes en México al menos desde el Mioceno temprano.

Related Organizations
Keywords

Firogeografía, México, Sudamérica, QK1-989, Botany, Bosques

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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
Average
gold