Results 51 to 60 of about 2,704 (211)

Unraveling the Parablechnum cordatum (Blechnaceae: Polypodiopsida) complex puzzle [PDF]

open access: yesActa Botânica Brasílica
Parablechnum cordatum (Blechnaceae) exhibits significant morphological variability, with many species considered as its synonyms, and is treated as a species complex by several authors. In this study, we offer a comprehensive revision of the taxon and an
Giesta Maria Olmedo Machado   +1 more
doaj   +1 more source

La colección de preparados palinológicos de la Cátedra de Palinología de la Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP), Buenos Aires, Argentina [PDF]

open access: yes, 2014
Fil: Yañez, Agustina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Palinología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo
Copello, Manuel   +13 more
core   +1 more source

Water availability and evolutionary similarity shape the global distribution of ferns with chlorophyllous spores

open access: yesEcography, Volume 2025, Issue 11, November 2025.
About 14% of all fern species have chlorophyllous spores, which lack dormancy, have thin walls, and have a shorter viability (only a few days in some species). These spores should have limited dispersal distances and be more susceptible to harsher climatic conditions, raising questions about the evolutionary and ecological significance of this trait ...
Daniela Mellado‐Mansilla   +5 more
wiley   +1 more source

Typification of Blechnum spicant var. fallax Lange (Blechnaceae)

open access: yesActa Societatis Botanicorum Poloniae, 2017
Blechnum spicant var. fallax Lange is a fern taxon endemic to Iceland where it occurs in the vicinity of hot springs on geothermally heated soils. The taxon was first described by a Danish botanist Johan Martin Christian Lange in 1880 on the basis of ...
Paweł Wąsowicz   +2 more
doaj   +1 more source

Keanekaragaman Pteridophyta Epifit di Kawasan Wisata Air Terjun Jumog Ngargoyoso Karanganyar Jawa Tengah [PDF]

open access: yes, 2018
Abstrak Pteridophyta epifit merupakan kelompok pteridophyta yang memiliki keunikan, hidup menempel di permukaan pohon inang tanpa merugikan dan merusaknya.Kawasan wisata Air Terjun Jumog memiliki jenis tumbuhan yang beragam dengan kondisi lingkungan ...
-, Efri Roziaty, S. Si., M. Si   +1 more
core  

Pteridófitas de uma área remanescente de Floresta Atlântica do Estado de Pernambuco, Brasil Floristic survey of the pteridophytes from a remnant area of Atlantic Forest, Pernambuco State, Brazil

open access: yesActa Botânica Brasílica, 1997
É apresentado um "checklist" das pteridófitas ocorrentes na Reserva Ecológica de Jangadinha, Município de Jaboatão dos Guararapes, como contribuição aos estudos da pteridoflora de áreas de Floresta Atlântica do Estado de Pernambuco.
Sandra Tereza Ambrósio   +1 more
doaj   +1 more source

The rust fungi (Uredinales) on ferns in South Africa [PDF]

open access: yes, 2018
The rust fungi (Uredinales, basidiomycota) occuring on ferns (Pteridophyta) in South Africa are described, illustrated and keyed out. All species belong to the pucciniastraceous genera Milesina (M. blechni), Uredinopsis (U.
Berndt, Reinhard
core  

Samambaias e licófitas do estado de Pernambuco, Brasil: Blechnaceae

open access: yesRodriguésia
O presente trabalho visa dar continuidade a série de monografias das famílias de samambaias e licófitas no estado de Pernambuco, apresentando o estudo da família Blechnaceae.
Augusto César Pessôa Santiago   +2 more
doaj   +1 more source

Was the Dry Diagonal of South America a Barrier for Dispersing Pteridaceae (Polypodiopsida) Species Between the Brazilian Atlantic Forest and Amazon Forest?

open access: yesJournal of Biogeography, Volume 52, Issue 8, August 2025.
ABSTRACT Aim We sought to assess how phylogenetic patterns within the fern family Pteridaceae are related to the history of the Amazon Forest and the Brazilian Atlantic Forest, as well as the Dry Diagonal of South America. The age of taxa present in these regions was estimated, as well as those found in previously identified areas of endemism for the ...
Aline Possamai Della   +3 more
wiley   +1 more source

Blechnum rosulatum (Blechnaceae, Polypodiopsida), a new species of fern from Tocantins, Brazil [PDF]

open access: yesActa Botânica Brasílica
We describe a new species of Blechnum from Tocantins, Brazil: Blechnum rosulatum sp. nov. (Blechnaceae). Information about its geographical distribution, habitat, phylogenetic placement and comments on conservation status are given, as well as an updated
Bianca Schindler   +5 more
doaj   +1 more source

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