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Acta Botanica Mexicana
Article . 2002 . Peer-reviewed
License: CC BY NC
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Acta Botanica Mexicana
Article
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Acta Botanica Mexicana
Article . 2002
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Diversidad y endemismo de la familia Euphorbiaceae en México

Authors: Victor W. Steinmann;

Diversidad y endemismo de la familia Euphorbiaceae en México

Abstract

Se calcula que en México las Euphorbiaceae están representadas por 43 géneros y 782 especies, más 32 taxa intraespecíficos: 8 subespecies y 24 variedades. Se propone una lista preliminar de la familia para el país. Los géneros más grandes son Euphorbia (241 spp., 31%), Croton (124 spp., 16%), Acalypha (108 spp., 14%), Jatropha (48 spp., 6%) y Phyllanthus (41 spp., 5%). Juntos representan 72% de las especies de las Euphorbiaceae conocidas de México. Hay un género endémico del país, Enriquebeltrania y se estima que 57% de las especies mexicanas son endémicas a su territorio. Empleando el concepto de Megaméxico, este valor aumenta a 78%. Los taxa introducidos están representados por un género (Ricinus) y 10 especies. Se destacan dos centros de diversidad que corresponden con las vertientes pacífica y atlántica. A nivel de género, las euforbiáceas mexicanas muestran una gran afinidad con las de Centro y Sudamérica; a nivel de especie, en su mayoría son endémicas, pero de las que no lo son, 200 existen también en Centroamérica, 138 en los Estados Unidos, 85 en Sudamérica y 55 en las Antillas. Casi ninguna de las especies mexicanas se encuentra de manera natural en el Viejo Mundo. A pesar de su gran importancia, tanto sistemática como florística, el conocimiento de las Euphorbiaceae en México es aún sumamente pobre.

Related Organizations
Keywords

QK1-989, Botany

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citations
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!
55
Top 10%
Top 10%
Average
Green
gold