MULTIVARIATE MORPHOMETRIC ANALYSIS OF TAXONOMIC RELATIONSHIPS IN ELEOCHARIS TENUIS (CYPERACEAE)

Morphology of Eleocharis tenuis is traditionally recognized as being highly variable and delimited only to the level of variety. However, novel morphometric data indicate that the varieties of E. tenuis are unique and well delimited by four of ten characters examined in this study. Furthermore, thes...

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Bibliographic Details
Published in:	Journal of the Botanical Research Institute of Texas 2019-07, Vol.13 (1), p.71-81
Main Authors:	Gibbons, Lane D., McMullen, Conley K.
Format:	Article
Language:	eng
Subjects:	SYSTEMATICS
Online Access:	Get full text
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Summary:	Morphology of Eleocharis tenuis is traditionally recognized as being highly variable and delimited only to the level of variety. However, novel morphometric data indicate that the varieties of E. tenuis are unique and well delimited by four of ten characters examined in this study. Furthermore, these unique morphological entities are supported by correlating cytological data. Herein, we treat E. tenuis var. verrucosa at the rank of species, as E. verrucosa, to reflect the evolutionary significance of this entity. We also provide a key to distinguish E. verrucosa from the remaining varieties of E. tenuis. La morfologia de Eleocharis tenuis se reconoce tradicionalmente como altamente variable y delimitada solo al nivel de variedad. Sin embargo, nuevos datos morfométricos indican que las variedades de E. tenuis son únicas y bien delimitadas por cuatro de los diez caracteres examinados en este estudio. Es más, Estas entidades morfológicas únicas están soportadas por datos citológicos correlacionados. Aquí, tratamos E. tenuis var. verrucosa en el rango de especie, como E. verrucosa, para reflejar el significado evolutivo de esta entidad. También aportamos una clave para distinguir E. verrucosa de las restantes variedades de E. tenuis.
ISSN:	1934-5259 2644-1608