New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya

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Backgrounds and aims: Schinus polygama (Anacardiaceae) has historically been a taxon of intricate taxonomy. It was erroneously considered as a species widely distributed in the Southern Cone. This work intends the delimitation of S. polygama, to describe S. talampaya (sp. nov.), previously mistaken...

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Autores principales: Fabbroni, Mariela, Zapater Cano, María A.
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2021
Materias:
Anacardiaceae
Argentina
espinescente
hojas simples
Schinus
taxonomía
Argentina,
simple leaves
spinescent
taxonomy
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/31297
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10article-31297
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic Anacardiaceae
Argentina
espinescente
hojas simples
Schinus
taxonomía
Anacardiaceae
Argentina,
Schinus
simple leaves
spinescent
taxonomy
spellingShingle Anacardiaceae
Argentina
espinescente
hojas simples
Schinus
taxonomía
Anacardiaceae
Argentina,
Schinus
simple leaves
spinescent
taxonomy
Fabbroni, Mariela
Zapater Cano, María A.
New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya
topic_facet Anacardiaceae
Argentina
espinescente
hojas simples
Schinus
taxonomía
Anacardiaceae
Argentina,
Schinus
simple leaves
spinescent
taxonomy
author Fabbroni, Mariela
Zapater Cano, María A.
author_facet Fabbroni, Mariela
Zapater Cano, María A.
author_sort Fabbroni, Mariela
title New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya
title_short New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya
title_full New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya
title_fullStr New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya
title_full_unstemmed New findings in Schinus (Anacardiaceae): delimitation of Schinus polygama and description of the new species, Schinus talampaya
title_sort new findings in schinus (anacardiaceae): delimitation of schinus polygama and description of the new species, schinus talampaya
description Backgrounds and aims: Schinus polygama (Anacardiaceae) has historically been a taxon of intricate taxonomy. It was erroneously considered as a species widely distributed in the Southern Cone. This work intends the delimitation of S. polygama, to describe S. talampaya (sp. nov.), previously mistaken with S. polygama and S. longifolia, and to delimitate for both the geography and biogeography in Argentina. M&M: We revised collections of national and international herbaria, as well as newly collected materials. We consulted the pertinent protologues and specialized taxonomic literature. Results: Schinus polygama has been delimited from its closely related counterparts. We described a new species: Schinus talampaya. The new species can be distinguished by the shape and size of leaves, kind and length of the inflorescence, number of flowers per node, pedicel length, and geographic distribution. The study of the distribution confirmed that S. polygama is restricted to Mendoza province in Argentina, while S. talampaya inhabits the provinces of La Rioja and San Juan. We provide pictures, an illustration, a comparative table with morphological data, an identification key, and distribution maps. We discuss the taxonomic placement of the involved taxa among Schinus sections. Conclusions: The evident morphological differences between S. polygama and S. talampaya allowed us to place the two species in two different sections: Duvaua and Pilifera, respectively. The new species is an important addition to sect. Pilifera from a morphological point of view, which implies the redefinition of the defining characteristics of the section, and thus the infragenerics systematics of Schinus.
publisher Sociedad Argentina de Botánica
publishDate 2021
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/31297
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