Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America

Stemodia diplohyptoides (Plantaginaceae), a new species from Gratiolae tribe is described and illustrated. This taxon is found in northeastern Argentina, at the edge of the Parana River that surrounds the north and center of Misiones province (Argentina). It is a diploid that has been traditionally...

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Autores principales: Sosa, María de las Mercedes, Dematteis, Massimiliano
Formato: Artículo
Lenguaje:Inglés
Publicado: Magnolia Press 2025
Materias:
Autopolyploid
Plantaginaceae
Speciation
Stemodia
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/59364
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-59364
record_format dspace
spelling I48-R184-123456789-593642025-12-15T12:02:56Z Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America Sosa, María de las Mercedes Dematteis, Massimiliano Autopolyploid Plantaginaceae Speciation Stemodia Stemodia diplohyptoides (Plantaginaceae), a new species from Gratiolae tribe is described and illustrated. This taxon is found in northeastern Argentina, at the edge of the Parana River that surrounds the north and center of Misiones province (Argentina). It is a diploid that has been traditionally treated under Stemodia hyptoides, which is here re-circumscribed to include only autopolyploid plants (tetraploid and hexaploid). The diploid specimens may be distinguished from the poly- ploid S. hyptoides by several morphological features such as shape, pubescence and margin of the leaves, corolla length and corolla tube pubescence. In addition, scanning electron microphotographs of seeds, chromosomes numbers, a distribution map and a key to distinguish the related species are also provided. On the basis of morphological, cytological and geographi- cal data, some evolutionary considerations are inferred. 2025-12-15T11:32:11Z 2025-12-15T11:32:11Z 2014-12-04 Artículo Sosa, María de las Mercedes y Dematteis, Massimiliano, 2014. Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America. Phytotaxa. Auckland: Magnolia Press, vol. 186, no. 5, p. 271-278. e-ISSN 1179-3162. 1179-3155 http://repositorio.unne.edu.ar/handle/123456789/59364 eng http://dx.doi.org/10.11646/phytotaxa.186.5.4 restrictedAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 271-278 application/pdf Magnolia Press Phytotaxa, 2014, vol. 186, no. 5, p. 271-278.
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 Autopolyploid
Plantaginaceae
Speciation
Stemodia
spellingShingle Autopolyploid
Plantaginaceae
Speciation
Stemodia
Sosa, María de las Mercedes
Dematteis, Massimiliano
Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America
topic_facet Autopolyploid
Plantaginaceae
Speciation
Stemodia
description Stemodia diplohyptoides (Plantaginaceae), a new species from Gratiolae tribe is described and illustrated. This taxon is found in northeastern Argentina, at the edge of the Parana River that surrounds the north and center of Misiones province (Argentina). It is a diploid that has been traditionally treated under Stemodia hyptoides, which is here re-circumscribed to include only autopolyploid plants (tetraploid and hexaploid). The diploid specimens may be distinguished from the poly- ploid S. hyptoides by several morphological features such as shape, pubescence and margin of the leaves, corolla length and corolla tube pubescence. In addition, scanning electron microphotographs of seeds, chromosomes numbers, a distribution map and a key to distinguish the related species are also provided. On the basis of morphological, cytological and geographi- cal data, some evolutionary considerations are inferred.
format Artículo
author Sosa, María de las Mercedes
Dematteis, Massimiliano
author_facet Sosa, María de las Mercedes
Dematteis, Massimiliano
author_sort Sosa, María de las Mercedes
title Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America
title_short Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America
title_full Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America
title_fullStr Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America
title_full_unstemmed Stemodia diplohyptoides (Plantaginaceae, Gratiolae) : a new diploid species from South America
title_sort stemodia diplohyptoides (plantaginaceae, gratiolae) : a new diploid species from south america
publisher Magnolia Press
publishDate 2025
url http://repositorio.unne.edu.ar/handle/123456789/59364
work_keys_str_mv AT sosamariadelasmercedes stemodiadiplohyptoidesplantaginaceaegratiolaeanewdiploidspeciesfromsouthamerica
AT dematteismassimiliano stemodiadiplohyptoidesplantaginaceaegratiolaeanewdiploidspeciesfromsouthamerica
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