Results 31 to 40 of about 6,364 (207)

Catálogo de las plantas vasculares de Chile

open access: yesGayana: Botanica, 2018
Se presenta un catálogo de las plantas vasculares que crecen en Chile. Está organizado por divisiones, Pteridophyta (Lycopodiopsida y Polypodiopsida), Pinophyta (Gnetopsida y Pinopsida) y Magnoliophyta (Liliopsida y Magnoliopsida), y dentro de cada ...
Roberto Rodriguez   +12 more
doaj   +1 more source

A new species of Blechnum L. (Blechnaceae, Polypodiopsida) from central-western Brazil, with an updated key to the species in the country

open access: yesActa Botânica Brasílica, 2022
We describe a new species of Blechnum from Mato Grosso, Brazil: Blechnum rivulorum sp. nov. This new species was discovered as a result of visits to the herbaria BM, K, P, PR, and S, as part of the Reflora Project, by the first author.
Vinícius Antonio de Oliveira Dittrich   +2 more
doaj   +1 more source

Palinomorfos del Holoceno en la cuenca alta del Río Lerma, Estado de México, México

open access: yesBotan‪ical Sciences, 2003
En los sedimentos de la laguna de Chignahuapan, Estado de México, México, se identificaron 96 palinomorfos. Se encontraron 8 taxa correspondientes a algas, un género y una familia tanto para Equisetopsida como para Lycopodiopsida, y 6 familias con 10 ...
Beatriz Ludlow-Wiechers   +2 more
doaj   +1 more source

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

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

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

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

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

Home - About - Disclaimer - Privacy