Results 141 to 150 of about 5,499 (162)
Some of the next articles are maybe not open access.

Taxonomic revision of Meniscium Schreber (Thelypteridaceae: Polypodiopsida)

Phytotaxa, 2020
Meniscium Schreber (Thelypteridaceae) is a tropical American fern genus containing 25 species, distributed from Florida, the Antilles and southern Mexico to northern Argentina and Paraguay. This genus is characterized by 1–pinnate lamina (rarely simple) with entire, undulate, crenulate or serrate pinnae, conform or subconform apical pinnae, veins ...
ROZIJANE S. FERNANDES, ALEXANDRE SALINO
openaire   +1 more source

The Cyatheaceae (Polypodiopsida) of Peru

Brittonia, 2011
A summary is presented of all Peruvian species of scaly tree ferns (Cyatheaceae). A total of 83 species is native to Peru (Sphaeropteris 1 sp., Alsophila sect. Alsophila 9 spp., Alsophila sect. Gymnosphaera 1 sp., Cyathea 72 spp.), with 13 endemic species in Cyathea and one in Alsophila.
openaire   +3 more sources

End of an enigma: Aenigmopteris belongs in Tectaria (Tectariaceae: Polypodiopsida)

Journal of Plant Research, 2017
The phylogenetic affinities of the fern genus Aenigmopteris have been the subject of considerable disagreement, but until now, no molecular data were available from the genus. Based on the analysis of three chloroplast DNA regions (rbcL, rps16-matK, and trnL-F) we demonstrate that Aenigmopteris dubia (the type species of the genus) and A.
Chen, Cheng-Wei   +6 more
openaire   +5 more sources

A Plastid Phylogeny of the Cosmopolitan Fern Family Cystopteridaceae (Polypodiopsida)

Systematic Botany, 2013
Abstract Among the novel results of recent molecular phylogenetic analyses are the unexpectedly close evolutionary relationships of the genera Acystopteris, Cystopteris, and Gymnocarpium, and the phylogenetic isolation of these genera from Woodsia. As a consequence, these three genera have been removed from Woodsiaceae and placed into their own family,
Rothfels, CJ, Windham, MD, Pryer, KM
openaire   +1 more source

Molecular Phylogeny and Recircumscription of the Fern Genus Pecluma (Polypodiaceae–Polypodiopsida)

Phytotaxa, 2016
To evaluate the monophyly of the genus Pecluma, molecular data from species of Pecluma, members of the Polypodium dulce group, Phlebodium and other Polypodiaceae genera were analysed. The molecular study was based on four plastid regions, rps4+rps4–trnS, trnL–F, matK, and rbcL, and included sequences of 30 species of Pecluma (75% of the genus).
Assis, Francine C.   +4 more
openaire   +2 more sources

One forgotten name, and another misinterpreted, in Lomariocycas (Blechnaceae, Polypodiopsida)

Phytotaxa, 2018
Blechnaceae Newman (1844: 8) is a subcosmopolitan family of leptosporangiate ferns (Polypodiopsida), which comprises around 250 species (Pteridophyte Phylogeny Group 2016). Until recently, most of this diversity fell under one, large genus Blechnum Linnaeus (1753: 1077), but after the accumulation of strong evidence of its non-monophyletic status ...
Vicent, Maria   +2 more
openaire   +2 more sources

Phylogenetics and historical biogeography of Lomaridium (Blechnaceae: Polypodiopsida)

TAXON, 2017
Abstract Blechnaceae is a worldwide family of leptosporangiate ferns composed of about 250 species. Most of the species in the family were recognised under a single large genus Blechnum until recently, when a new classification proposed the recognition of 24 genera.
María Vicent   +2 more
openaire   +1 more source

A synopsis of the Neotropical species of Cyathea (Cyatheaceae; Polypodiopsida) with bipinnate fronds

Brittonia, 2016
A synopsis of all Neotropical species of Cyathea with bipinnate fronds is presented. This artificial group includes 27 species with entire or very shallowly lobed pinnules. The provided key includes together, for the first time, species that had been previously treated in three different genera: Sphaeropteris, Trichipteris, and Cyathea.
Marcus Lehnert, Anna Weigand
openaire   +2 more sources

OPHIOGLOSSUM VULGATUM (POLYPODIOPSIDA, OPHIOGLOSSACEAE) В ВОЛОГОДСКОЙ ОБЛАСТИ

2020
Ophioglossum vulgatum L. (Ophioglossaceae) в 2015 г. был включён в Красную книгу Вологодской обл. (3/LC) в связи с наметившейся негативной тенденцией по сокращению числа местонахождений и численности популяций. За период с 1826 по 2020 гг. вид был отмечен в 90 локалитетах, 22 (из 26) административных районах области.
openaire   +1 more source

Home - About - Disclaimer - Privacy