Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico

Zinnia acerosa (DC.) A. Gray var. guanajuatensis, from the state of Guanajuato, and Z. zamudiana, from the state of Querétaro, are described as new. The first differs from the typical variety in the prostrate habit, in the wider heads which contain a larger number of flowers, and in the almost compl...

Disgrifiad llawn

Manylion Llyfryddiaeth
Prif Awduron: Calderon de Rzedowski, Graciela, Rzedowski, Jerzy
Fformat: Online
Iaith:spa
Cyhoeddwyd: Instituto de Ecología, A.C. 1996
Mynediad Ar-lein:https://abm.ojs.inecol.mx/index.php/abm/article/view/763
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author Calderon de Rzedowski, Graciela
Rzedowski, Jerzy
author_facet Calderon de Rzedowski, Graciela
Rzedowski, Jerzy
author_sort Calderon de Rzedowski, Graciela
collection ABM
description Zinnia acerosa (DC.) A. Gray var. guanajuatensis, from the state of Guanajuato, and Z. zamudiana, from the state of Querétaro, are described as new. The first differs from the typical variety in the prostrate habit, in the wider heads which contain a larger number of flowers, and in the almost completely epappose achenes. The second seems to be related to Z. juniperifolia (DC.) A. Gray, but is remarkably distinct in the prostrate, more or less pulvinate habit, in the sessile or very shortly pedunculate heads, and in the smaller and less intensely colored ligules.
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spelling oai:oai.abm.ojs.inecol.mx:article-7632022-11-22T23:48:55Z Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico Dos novedades en Zinnia subgénero Diplothrix (Compositae: Heliantheae) del centro de México Calderon de Rzedowski, Graciela Rzedowski, Jerzy endemism relict populations xerophilic plants Zinnia acerosa var. Guanajuatensis Zinnia zamudiana. endemismo plantas xerófilas poblaciones relictuales Zinnia acerosa var. Guanajuatensis Zinnia zamudiana. Zinnia acerosa (DC.) A. Gray var. guanajuatensis, from the state of Guanajuato, and Z. zamudiana, from the state of Querétaro, are described as new. The first differs from the typical variety in the prostrate habit, in the wider heads which contain a larger number of flowers, and in the almost completely epappose achenes. The second seems to be related to Z. juniperifolia (DC.) A. Gray, but is remarkably distinct in the prostrate, more or less pulvinate habit, in the sessile or very shortly pedunculate heads, and in the smaller and less intensely colored ligules. Se describen como nuevas a Zinnia acerosa (DC.) A. Gray var. guanajuatensis y a Z. zamudiana de los estados de Guanajuato y Querétaro respectivamente. La primera difiere de la variedad típica en el hábito rastrero, en las cabezuelas más anchas y con mayor cantidad de flores, así como en aquenios casi completamente carentes de vilano. La segunda parece estar emparentada con Z. juniperifolia (DC.) A. Gray, de la que se distingue de manera notable en el hábito rastrero, más o menos almohadillado, en las cabezuelas sésiles o muy cortamente pedunculadas, al igual que en las lígulas que son conspicuamente más pequeñas y de color menos intenso. Instituto de Ecología, A.C. 1996-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/763 10.21829/abm36.1996.763 Acta Botanica Mexicana; No. 36 (1996); 77-83 Acta Botanica Mexicana; Núm. 36 (1996); 77-83 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/763/929 Derechos de autor 2016 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0
spellingShingle Calderon de Rzedowski, Graciela
Rzedowski, Jerzy
Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico
title Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico
title_full Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico
title_fullStr Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico
title_full_unstemmed Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico
title_short Two developments in Zinnia Subgenera Diplothrix (Compositae: Heliantheae) from central Mexico
title_sort two developments in zinnia subgenera diplothrix (compositae: heliantheae) from central mexico
url https://abm.ojs.inecol.mx/index.php/abm/article/view/763
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