Results 151 to 160 of about 1,326 (167)
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Ultrastructure and composition of cell wall appositions in the roots of Asplenium (Polypodiales)
Micron, 2011Cell wall appositions (CWAs), formed by the deposition of extra wall material at the contact site with microbial organisms, are an integral part of the response of plants to microbial challenge. Detailed histological studies of CWAs in fern roots do not exist.
Leroux, O. +6 more
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Phytotaxa, 2021
The fern Rumohra ponceana sp. nov., a narrow endemic of the Austral Pampean district, Pampean biogeographic province in Argentina, is described and illustrated. The species inhabits the Tandilia and Ventania Systems, where it grows in sunny rock crevices. The new species differs from the widespread R.
MARCELO D. ARANA +4 more
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The fern Rumohra ponceana sp. nov., a narrow endemic of the Austral Pampean district, Pampean biogeographic province in Argentina, is described and illustrated. The species inhabits the Tandilia and Ventania Systems, where it grows in sunny rock crevices. The new species differs from the widespread R.
MARCELO D. ARANA +4 more
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Systematics of the Adiantum philippense complex (Pteridaceae, Polypodiales) in Taiwan
Phytotaxa, 2016Adiantum philippense s.l. is a member of once-pinnate Adiantum but comprise several cytotaxa with different ploidies and reproductive modes. According to the differences of cytotypes, the up-to-date revision had identified three subspecies under the A. philippense complex. In Taiwan, different ploidies and reproductive modes had also been found in this
LI-YAUNG KUO +4 more
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Antrophyum nambanense, A New Vittarioid Fern (Pteridaceae; Polypodiales) From Vietnam
Systematic Botany, 2020Abstract—A new species, Antrophyum nambanense, is described here based on the evidence from morphology and molecular phylogeny. Morphologically, short taeniform soral paraphyses and large fronds are the diagnostic characteristics of A. nambanense. Phylogenetically, it is most closely related to A.
Cheng-Wei Chen +5 more
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Pteridryaceae: A new fern family of Polypodiineae (Polypodiales) including taxonomic treatments
Journal of Systematics and Evolution, 2018AbstractWe undertook phylogenetic analyses to resolve the relationships of Pteridrys and related taxa based on six plastid markers (atpA, atpB, matK & rps16‐matK, rbcL, rps4 & rps4‐trnS, and trnL & trnL‐F) and nuclear pgiC. We included 195 accessions representing approximately 147 species in 38 genera, and seven of the nine families in ...
Xin‐Mao Zhou +4 more
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Polypodiales Bercht. & J.Presl.
2011Published as part of Reveal, James L., 2011, New ordinal names established by changes to the botanical code, pp.
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Asplenium pifongiae (Aspleniaceae: Polypodiales), a New Species from Taiwan
Systematic Botany, 2016Abstract We describe and illustrate a new species, Asplenium pifongia., currently known only from Taiwan. Although superficially similar to A. monanthe., this species is a sexual diploid and has little perforation on its spore surfaces. Phylogenetic analyses demonstrate that A. pifongia. is not closely related to A.
Fay-Wei Li +7 more
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Diversity, endemism and conservation of ferns (Polypodiales) in the Mexican Mountain Component
Journal of Mountain Science, 2015We analyzed the distributional patterns of 95 selected species of leptosporangiate ferns inhabiting the Mexican Mountain Component, using grid-cells of one geographical degree as unit areas, applying endemism indices and richness and beta diversity analyses. Distributional data were obtained from several herbaria and specialized literature.
Celia Sanginés-Franco +5 more
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Phytotaxa, 2016
The fern family Blechnaceae, with about 250 species, has traditionally comprised one large genus, Blechnum, plus seven to nine smaller genera, most with fewer than 10 species. Several phylogenetic analyses strongly suggest that Blechnum in the traditional sense is not a monophyletic group.
ANDRÉ LUÍS DE GASPER +3 more
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The fern family Blechnaceae, with about 250 species, has traditionally comprised one large genus, Blechnum, plus seven to nine smaller genera, most with fewer than 10 species. Several phylogenetic analyses strongly suggest that Blechnum in the traditional sense is not a monophyletic group.
ANDRÉ LUÍS DE GASPER +3 more
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A new fossil record of Lindsaeaceae (Polypodiales) from the mid-Cretaceous amber of Myanmar
Cretaceous Research, 2020Abstract A new fossil belonging to the Lindsaeaceae is described as Proodontosoria myanmarensis gen. et sp. nov. from the mid-Cretaceous Myanmar amber. Its classification in the extant Lindsaeaceae is based on laterally fused vein tips that bear sori, indusia opening toward the segment margins, and trilete spores.
Chunxiang Li +4 more
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