Dryopteris

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 2085 Experts worldwide ranked by ideXlab platform

Boullón Agrelo Carlos - One of the best experts on this subject based on the ideXlab platform.

  • Pteridoflora paleotropical amenazada en el SW de la provincia de A Coruña (NW ibérico)
    Servizo de Publicacións e Intercambio Científico Universidade de Santiago de Compostela, 2020
    Co-Authors: González Martínez, Xosé Ignacio, Boullón Agrelo Carlos
    Abstract:

    Resumen En este trabajo damos a conocer un conjunto de nuevas localidades para varias especies de helechos paleotropicales amenazados [Dryopteris aemula (Aiton) Kuntze, D. guanchica Gibby & Jermy, Hymenophyllum tunbrigense (L.) Sm., Vandesboschia speciosa (Willd.) Kunkel y Woodwardia radicans (L.) Sm.] en el SW de la provincia de A Coruña, actualizando y aumentado de forma significativa el conocimiento sobre su distribución en el ámbito de la fachada atlántica gallega. Dichas localidades se distribuyen a lo largo de un total de 29 cuencas hidrográficas pertenecientes a 16 ayuntamientos. La mayor parte de los muestreos se llevaron a cabo en bosques riparios de vaguada, por lo general localizados en valles encajonados orientados al norte. La alteración y destrucción de estos bosques constituye la principal amenaza para estos helechos. Se aporta, además, información de interés sobre aspectos ecológicos y demográficos de las especies estudiadas, así como sobre sus principales amenazas directas y el estado de conservación de sus poblaciones y sus hábitats. Además, se realizan diversas consideraciones de interés taxonómico para el caso del género Dryopteris. Todos los materiales que han sido recolectados se hallan depositados en el Herbario SANT de la Universidade de Santiago de Compostela

  • Dryopteris x fraser-jenkinsii Gibby & Widén en Galicia y nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña (NO de la península ibérica)
    'Malaga University', 2018
    Co-Authors: González Martínez, Xosé Ignacio, Boullón Agrelo Carlos
    Abstract:

    En esta nota presentamos información sobre el híbrido interespecífico Dryopteris x fraser-jenkinsii Gibby & Widén para el territorio de Galicia, así como un conjunto de nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña. Todos los pliegos testigo se hallan depositados en el Herbario SANT de la Universidad de Santiago de Compostela

  • Dryopteris x fraser-jenkinsii Gibby & Widén en Galicia y nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña (NO de la península ibérica)
    2017
    Co-Authors: González Martínez, Xosé Ignacio, Boullón Agrelo Carlos
    Abstract:

    In this note, information of interest about the interspecific hybrid Dryopteris x fraser-jenkinsii Gibby & Widen in Galician territory is presented. In addition, several new locaties of Cystopteris diaphana (Bory) Blasdell for A Coruña province are also presented. All the cited specimens are deposited at the SANT Herbarium.En esta nota presentamos información sobre el híbrido interespecífico Dryopteris x fraser-jenkinsii Gibby & Widén para el territorio de Galicia, así como un conjunto de nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña. Todos los pliegos testigo se hallan depositados en el Herbario SANT de la Universidad de Santiago de Compostela

  • Dryopteris x fraser-jenkinsii Gibby & Widén in Galicia and new localities of Cystopteris diaphana (Bory) Blasdell in A Coruña province (NW Iberian Peninsula)
    Universidad de Málaga. Servicio de Publicaciones e Intercambio Científico, 2017
    Co-Authors: González-martínez X. Ignacio, Boullón Agrelo Carlos
    Abstract:

    En esta nota presentamosinformación sobre el híbrido interespecífico Dryopteris x fraser-jenkinsii Gibby & Widén para el territorio de Galicia, así como un conjunto de nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña. Todos los pliegos testigo se hallan depositados en el Herbario SANT de la Universidad de Santiago de Compostela

Libing Zhang - One of the best experts on this subject based on the ideXlab platform.

  • the inclusion of acrophorus diacalpe nothoperanema and peranema in Dryopteris the molecular phylogeny systematics and nomenclature of Dryopteris subg nothoperanema dryopteridaceae
    Taxon, 2012
    Co-Authors: Libing Zhang, Liang Zhang
    Abstract:

    Dryopteris (Dryopteridaceae) is one of the largest fern genera containing about 300 or more species. Sixty-five accessions representing all four subgenera and all 19 sections of Dryopteris recognized in current classifications, more than two-thirds of the species of Acrophorus, Diacalpe, Nothoperanema, and Peranema, three species of Arachniodes, three species of Cyrtomium, one species of Phanerophlebia, and two species of Polystichum, were sampled as ingroup in this study. Two species of Polystichopsis were used as outgroups. DNA sequences of five plastid loci (psbA-trnH spacer, rbcL gene, rps4-trnS spacer, trnL intron, trnL-F spacer) were used to infer the phylogeny of Dryopteris and related genera. Our study clearly demonstrated that the currently defined Dryopteris is paraphyletic in relation to a clade containing the monophyletic Acrophorus, Diacalpe, Nothoperanema, and Peranema. Peranema is resolved as sister to the remaining three genera, followed by Nothoperanema which in turn is sister to the Acrophorus+Diacalpe clade, but this relationship received low support. Three out of the four subgenera of Dryopteris recognized in current classifications are not recovered as monophyletic. Dryopteris subg. Nothoperanema, well supported as monophyletic by molecular and morphological data, is resurrected and re-circumscribed to contain species of the currently accepted genera Acrophorus, Diacalpe, Nothoperanema, and Peranema. Twenty-seven species are recognized and classified into four sections based on molecular and morphological evidence. Included in this treatment are 25 new combinations, names, species, and statuses, and neotypification or lectotypification of 14 names. The present study further located and cited types of an additional 28 related names, many of which have been unknown to science. Keys to sections and species and distributional information are given and nomenclatural issues are discussed. This paper also synonymized and excluded 33 nomenclaturally confusing names of Dryopteris that were formerly assigned to Acrophorus or Diacalpe.

  • molecular circumscription and major evolutionary lineages of the fern genus Dryopteris dryopteridaceae
    BMC Evolutionary Biology, 2012
    Co-Authors: Shi-yong Dong, Libing Zhang, Liang Zhang, Emily B Sessa, Atsushi Ebihara
    Abstract:

    Background The fern genus Dryopteris (Dryopteridaceae) is among the most common and species rich fern genera in temperate forests in the northern hemisphere containing 225–300 species worldwide. The circumscription of Dryopteris has been controversial and various related genera have, over the time, been included in and excluded from Dryopteris. The infrageneric phylogeny has largely remained unclear, and the placement of the majority of the supraspecific taxa of Dryopteris has never been tested using molecular data.

González Martínez, Xosé Ignacio - One of the best experts on this subject based on the ideXlab platform.

  • Pteridoflora paleotropical amenazada en el SW de la provincia de A Coruña (NW ibérico)
    Servizo de Publicacións e Intercambio Científico Universidade de Santiago de Compostela, 2020
    Co-Authors: González Martínez, Xosé Ignacio, Boullón Agrelo Carlos
    Abstract:

    Resumen En este trabajo damos a conocer un conjunto de nuevas localidades para varias especies de helechos paleotropicales amenazados [Dryopteris aemula (Aiton) Kuntze, D. guanchica Gibby & Jermy, Hymenophyllum tunbrigense (L.) Sm., Vandesboschia speciosa (Willd.) Kunkel y Woodwardia radicans (L.) Sm.] en el SW de la provincia de A Coruña, actualizando y aumentado de forma significativa el conocimiento sobre su distribución en el ámbito de la fachada atlántica gallega. Dichas localidades se distribuyen a lo largo de un total de 29 cuencas hidrográficas pertenecientes a 16 ayuntamientos. La mayor parte de los muestreos se llevaron a cabo en bosques riparios de vaguada, por lo general localizados en valles encajonados orientados al norte. La alteración y destrucción de estos bosques constituye la principal amenaza para estos helechos. Se aporta, además, información de interés sobre aspectos ecológicos y demográficos de las especies estudiadas, así como sobre sus principales amenazas directas y el estado de conservación de sus poblaciones y sus hábitats. Además, se realizan diversas consideraciones de interés taxonómico para el caso del género Dryopteris. Todos los materiales que han sido recolectados se hallan depositados en el Herbario SANT de la Universidade de Santiago de Compostela

  • Dryopteris x fraser-jenkinsii Gibby & Widén en Galicia y nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña (NO de la península ibérica)
    'Malaga University', 2018
    Co-Authors: González Martínez, Xosé Ignacio, Boullón Agrelo Carlos
    Abstract:

    En esta nota presentamos información sobre el híbrido interespecífico Dryopteris x fraser-jenkinsii Gibby & Widén para el territorio de Galicia, así como un conjunto de nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña. Todos los pliegos testigo se hallan depositados en el Herbario SANT de la Universidad de Santiago de Compostela

  • Dryopteris x fraser-jenkinsii Gibby & Widén en Galicia y nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña (NO de la península ibérica)
    2017
    Co-Authors: González Martínez, Xosé Ignacio, Boullón Agrelo Carlos
    Abstract:

    In this note, information of interest about the interspecific hybrid Dryopteris x fraser-jenkinsii Gibby & Widen in Galician territory is presented. In addition, several new locaties of Cystopteris diaphana (Bory) Blasdell for A Coruña province are also presented. All the cited specimens are deposited at the SANT Herbarium.En esta nota presentamos información sobre el híbrido interespecífico Dryopteris x fraser-jenkinsii Gibby & Widén para el territorio de Galicia, así como un conjunto de nuevas localidades de Cystopteris diaphana (Bory) Blasdell para la provincia de A Coruña. Todos los pliegos testigo se hallan depositados en el Herbario SANT de la Universidad de Santiago de Compostela

Liang Zhang - One of the best experts on this subject based on the ideXlab platform.

  • the inclusion of acrophorus diacalpe nothoperanema and peranema in Dryopteris the molecular phylogeny systematics and nomenclature of Dryopteris subg nothoperanema dryopteridaceae
    Taxon, 2012
    Co-Authors: Libing Zhang, Liang Zhang
    Abstract:

    Dryopteris (Dryopteridaceae) is one of the largest fern genera containing about 300 or more species. Sixty-five accessions representing all four subgenera and all 19 sections of Dryopteris recognized in current classifications, more than two-thirds of the species of Acrophorus, Diacalpe, Nothoperanema, and Peranema, three species of Arachniodes, three species of Cyrtomium, one species of Phanerophlebia, and two species of Polystichum, were sampled as ingroup in this study. Two species of Polystichopsis were used as outgroups. DNA sequences of five plastid loci (psbA-trnH spacer, rbcL gene, rps4-trnS spacer, trnL intron, trnL-F spacer) were used to infer the phylogeny of Dryopteris and related genera. Our study clearly demonstrated that the currently defined Dryopteris is paraphyletic in relation to a clade containing the monophyletic Acrophorus, Diacalpe, Nothoperanema, and Peranema. Peranema is resolved as sister to the remaining three genera, followed by Nothoperanema which in turn is sister to the Acrophorus+Diacalpe clade, but this relationship received low support. Three out of the four subgenera of Dryopteris recognized in current classifications are not recovered as monophyletic. Dryopteris subg. Nothoperanema, well supported as monophyletic by molecular and morphological data, is resurrected and re-circumscribed to contain species of the currently accepted genera Acrophorus, Diacalpe, Nothoperanema, and Peranema. Twenty-seven species are recognized and classified into four sections based on molecular and morphological evidence. Included in this treatment are 25 new combinations, names, species, and statuses, and neotypification or lectotypification of 14 names. The present study further located and cited types of an additional 28 related names, many of which have been unknown to science. Keys to sections and species and distributional information are given and nomenclatural issues are discussed. This paper also synonymized and excluded 33 nomenclaturally confusing names of Dryopteris that were formerly assigned to Acrophorus or Diacalpe.

  • molecular circumscription and major evolutionary lineages of the fern genus Dryopteris dryopteridaceae
    BMC Evolutionary Biology, 2012
    Co-Authors: Shi-yong Dong, Libing Zhang, Liang Zhang, Emily B Sessa, Atsushi Ebihara
    Abstract:

    Background The fern genus Dryopteris (Dryopteridaceae) is among the most common and species rich fern genera in temperate forests in the northern hemisphere containing 225–300 species worldwide. The circumscription of Dryopteris has been controversial and various related genera have, over the time, been included in and excluded from Dryopteris. The infrageneric phylogeny has largely remained unclear, and the placement of the majority of the supraspecific taxa of Dryopteris has never been tested using molecular data.

Atsushi Ebihara - One of the best experts on this subject based on the ideXlab platform.

  • molecular circumscription and major evolutionary lineages of the fern genus Dryopteris dryopteridaceae
    BMC Evolutionary Biology, 2012
    Co-Authors: Shi-yong Dong, Libing Zhang, Liang Zhang, Emily B Sessa, Atsushi Ebihara
    Abstract:

    Background The fern genus Dryopteris (Dryopteridaceae) is among the most common and species rich fern genera in temperate forests in the northern hemisphere containing 225–300 species worldwide. The circumscription of Dryopteris has been controversial and various related genera have, over the time, been included in and excluded from Dryopteris. The infrageneric phylogeny has largely remained unclear, and the placement of the majority of the supraspecific taxa of Dryopteris has never been tested using molecular data.

Dryopteris - 15 days free trial to Access Experts & Abstracts