Results 31 to 40 of about 5,347 (163)

Do you know Cyathea divergens (Cyatheaceae-Polypodiopsida)?  [PDF]

open access: yesPhytotaxa, 2014
The Neotropical scaly tree fern Cyathea divergens is a paradigm of a variable species with a wide geographical range. Studies in herbaria and in the field reveal that C. divergens is less frequently collected and less variable than previously thought.
openaire   +2 more sources

The first register of the weed fern Pteris cretica var. laeta (Pteridaceae) in central Argentina

open access: yesLilloa, 2020
Pteris cretica L. var. laeta is recorded for the first time in the Comechingones biogeographic province in central Argentina. This is the first record of P. cretica in central Argentina, and P. cretica var. laeta for the country. Until now Pteris cretica
Marcelo Daniel Arana   +3 more
doaj   +1 more source

Pteridophyte distribution of the Urals and adjacent areas: a dataset [PDF]

open access: yesBiodiversity Data Journal, 2021
Data on the species diversity and distribution of pteridophytes (lycophytes and ferns) in the Urals and adjacent areas are presented. The dataset includes 13,742 observations of two classes Lycopodiopsida and Polypodiopsida.
Denis Melnikov   +21 more
doaj   +3 more sources

Middle Triassic dipterid ferns from west-central Argentina and their relationship to palaeoclimatic changes [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Dipterid ferns possess robust fossil record from Mesozoic times on, and they are considered to be a reliable indicator of warm to subtropical humid or seasonal paleoclimatic conditions. In this contribution, we revised and described new samples of fossil
Josefina Bodnar   +3 more
doaj   +1 more source

Dennstaedtiaceae (Polypodiopsida) no estado de Minas Gerais, Brasil / Dennstaedtiaceae (Polypodiopsida) in Minas Gerais, Brasil

open access: yes, 2011
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Assis, Francine Costa, Salino, Alexandre
openaire   +2 more sources

RECOGNITION OF THE GENUS MYRIOPTERIS (PTERIDACEAE, POLYPODIOPSIDA) IN BRAZIL

open access: yesDarwiniana, nueva serie, 2019
In the present work, the genus Myriopteris is mentioned for the first time for Brazil, represented by M. myriophylla, a species of wide distribution in the American continent, from Mexico to Argentina, but never before verified for this country. Furthermore, we provide a description of the sole species found, along with an image and notes.
Vinícius Antonio de Oliveira Dittrich   +1 more
openaire   +2 more sources

Asplenium sylvaticum (Aspleniaceae), a new fern species from Yungas and Paraná forests, Neotropical region [PDF]

open access: yesAnais da Academia Brasileira de Ciências
A new species of Asplenium L. (Aspleniaceae) is described and illustrated. Asplenium sylvaticum is endemic of the Yungas and Paraná biogeographic provinces in the Southern Cone. The main diagnostic characters for this taxon are: apical pinnae with one to
MARCELO D. ARANA   +3 more
doaj   +1 more source

New records for the fern flora (Polypodiopsida) in Yungas from Tucumán, Argentina

open access: yesLilloa, 2023
Didymoglossum krausii (Hymenophyllaceae), Amauropelta jujuyensis and Amauropelta nubicola (Thelypteridaceae) are recorded for the first time in Tucumán, Argentina, in Yungas biogeographic province. This is the southernmost record of the three taxa.
Gabriela Romagnoli   +2 more
doaj   +1 more source

Sinopsis de los helechos y licofitos del Parque Nacional Mburucuyá (Corrientes, Argentina): Claves de especies

open access: yesBoletín de la Sociedad Argentina de Botánica, 2013
En el Parque Nacional Mburucuyá, Corrientes, Argentina, se registraron un total de 29 géneros y 48 taxones infragenéricos. El género mejor representado es Thelypteris Schmidel con cinco especies; seguido por Pecluma M. G.
Esteban L.  Meza Torres   +2 more
doaj   +1 more source

Sticherus lanuginosus (Gleicheniaceae, Polypodiopsida) en Argentina y Paraguay

open access: yesDarwiniana, nueva serie, 2021
This work provides data on the distribution of Sticherus lanuginosus in Argentina and Paraguay. A description, illustrations, ecological observations and the first record of this species in Argentina are also provided. With this, the number of species of the genus in Argentina rises to three.
Saúl Páez   +2 more
openaire   +3 more sources

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