Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata

Randia brevituba is a new species of the Paranean region of Argentina and Paraguay. It differs from the closest species, R. ferox, which is sympatric, in having short corolla tubes of 4.7‐5.4 mm in the pistillate flowers and 2.8‐7.9 mm in the staminate flowers, calyx lobes varying in shape and size...

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Autores principales: Judkevich, Marina Daniela, Salas, Roberto Manuel, Keller, Héctor Alejandro
Formato: Artículo
Lenguaje:Inglés
Publicado: American Society of Plant Taxonomists 2021
Materias:
Flora of Argentina
Gardenieae
Paranean region
Taxonomy
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/28605
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-28605
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spelling I48-R184-123456789-286052025-09-02T12:47:29Z Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata Judkevich, Marina Daniela Salas, Roberto Manuel Keller, Héctor Alejandro Flora of Argentina Gardenieae Paranean region Taxonomy Randia brevituba is a new species of the Paranean region of Argentina and Paraguay. It differs from the closest species, R. ferox, which is sympatric, in having short corolla tubes of 4.7‐5.4 mm in the pistillate flowers and 2.8‐7.9 mm in the staminate flowers, calyx lobes varying in shape and size in the same pistillate flower, and globose fruits 14‐17 mm long (versus corolla tubes of 25.0‐27.0 and 22.6‐34.0 mm long, respectively, calyx lobes equal in shape and size, and fruit 3‐5 cm and ovoid, ellipsoid or subglobose in R. ferox). We also discuss the taxonomic concept and geographic distribution of Randia armata, and conclude that it is markedly different from R. brevituba and the other species in the Southern Cone studied here, and moreover, that it does not occur in the Southern Cone. We provide a taxonomic key to distinguish the new species from other species of Randia in the Southern Cone of America. 2021-09-08T14:00:40Z 2021-09-08T14:00:40Z 2016-02-11 Artículo Judkevich, Marina Daniela, Salas, Roberto Manuel y Keller, Héctor Alejandro, 2016. Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata. Systematic Botany. St. Louis: The American Society of Plant Taxonomists, vol. 41, no. 1, p. 238-244. E-ISSN 1548-2324. 0363-6445 http://repositorio.unne.edu.ar/handle/123456789/28605 eng https://doi.org/10.1600/036364416X690642 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf American Society of Plant Taxonomists Systematic Botany, 2016, vol. 41, no. 1, p. 238-244.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Flora of Argentina
Gardenieae
Paranean region
Taxonomy
spellingShingle Flora of Argentina
Gardenieae
Paranean region
Taxonomy
Judkevich, Marina Daniela
Salas, Roberto Manuel
Keller, Héctor Alejandro
Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata
topic_facet Flora of Argentina
Gardenieae
Paranean region
Taxonomy
description Randia brevituba is a new species of the Paranean region of Argentina and Paraguay. It differs from the closest species, R. ferox, which is sympatric, in having short corolla tubes of 4.7‐5.4 mm in the pistillate flowers and 2.8‐7.9 mm in the staminate flowers, calyx lobes varying in shape and size in the same pistillate flower, and globose fruits 14‐17 mm long (versus corolla tubes of 25.0‐27.0 and 22.6‐34.0 mm long, respectively, calyx lobes equal in shape and size, and fruit 3‐5 cm and ovoid, ellipsoid or subglobose in R. ferox). We also discuss the taxonomic concept and geographic distribution of Randia armata, and conclude that it is markedly different from R. brevituba and the other species in the Southern Cone studied here, and moreover, that it does not occur in the Southern Cone. We provide a taxonomic key to distinguish the new species from other species of Randia in the Southern Cone of America.
format Artículo
author Judkevich, Marina Daniela
Salas, Roberto Manuel
Keller, Héctor Alejandro
author_facet Judkevich, Marina Daniela
Salas, Roberto Manuel
Keller, Héctor Alejandro
author_sort Judkevich, Marina Daniela
title Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata
title_short Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata
title_full Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata
title_fullStr Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata
title_full_unstemmed Randia brevituba (Rubiaceae), a new species from the Southern Cone of America and comments on Randia armata
title_sort randia brevituba (rubiaceae), a new species from the southern cone of america and comments on randia armata
publisher American Society of Plant Taxonomists
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/28605
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AT salasrobertomanuel randiabrevitubarubiaceaeanewspeciesfromthesouthernconeofamericaandcommentsonrandiaarmata
AT kellerhectoralejandro randiabrevitubarubiaceaeanewspeciesfromthesouthernconeofamericaandcommentsonrandiaarmata
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