Results 91 to 100 of about 7,115 (254)

Typification and Relationships of Cheilanthes incisa (Pteridaceae)

open access: yesAmerican Fern Journal, 2007
ABSTRACT Cheilanthes incisa, a small and rare endemic fern of Rio de Janeiro State (Brazil), was described in 1859. Hypolepis serrata, published ten years later, is usually considered a taxonomic synonym. Both names have typification problems, addressed here by designation of a neotype for C. incisa and selection of a lectotype of H. serrata from among
Ponce, M. Mónica (Marta Mónica)   +2 more
openaire   +3 more sources

Spore morphology of Onychium ipii Ching (Pteridoideae, Pteridaceae)

open access: yesTurczaninowia, 2017
The ultrastructure of the spore surface of Onychium ipii Ching (Pteridoideae, Pteridaceae) was investigated by using of scanning electron microscopy. Spores of Onychium ipii are trilete, tetrahedral, with hemispherical distal side and convex proximal one.
A.V. Vaganov   +4 more
doaj  

Systematics and Chatacteristics [PDF]

open access: yes, 2016
The "Tracheophyte Phylogeny Poster – Vascular Plants - Systematics and Characteristics" is an educational tool presenting an overview of the evolutionary relationships among non-flowering vascular plants (lycophytes, monilophytes, and gymnosperms ...
Cole, Theodor C.H., Hilger, Hartmut H.
core   +1 more source

Adiantum capillus‐veneris: A Comprehensive Review of Its Medicinal Properties, Bioactive Compounds, and Advanced Extraction Techniques

open access: yesFood Science &Nutrition, Volume 13, Issue 10, October 2025.
Adiantum capillus‐veneris (Maidenhair fern) is a medicinal plant known for its rich phytochemical composition and diverse therapeutic properties. This review highlights its antioxidant, anti‐inflammatory, antimicrobial, and antidiabetic activities, along with modern extraction techniques for isolating bioactive compounds.
Syamand Ahmed Qadir   +8 more
wiley   +1 more source

Clarification of the typification of Pteris argyraea (Pteridaceae)

open access: yesPhytotaxa, 2016
Pteris argyraea Moore (1859: 671), commonly known as silver brake fern, is originally a south-east Asian species, but now cultivated as an ornamental plant throughout the tropical regions of the world.
Das, Piu   +2 more
openaire   +3 more sources

Late Miocene -Pleistocene evolution of India-Eurasia convergence partitioning between the Bhutan Himalaya and the Shillong plateau:new evidences from foreland basin deposits along the Dunsam Chu section, Eastern Bhutan [PDF]

open access: yes, 2016
The Shillong plateau is a unique basement-cored uplift in the foreland of the eastern Himalaya that accommodates part of the India-Eurasia convergence since the late Miocene.
Barrier, Laurie   +6 more
core   +3 more sources

Vegetation [PDF]

open access: yes, 2011
Due to their complexity, vegetation phenomena are not understandable without a consistent conceptual framework. A few indispensable concepts to explore the northeastern Portuguese ultramafic vegetation are set out in Tables 9 and 10. Association.
Aguiar, Carlos   +2 more
core   +1 more source

Parahemionitis, a New Genus of Pteridaceae

open access: yesAmerican Fern Journal, 1993
Beddome (1883) redescribed and illustrated two species of Hemionitis L. from India, H. arifolia (N.L. Burm.) T. Moore and H. griffithii (T. Moore) J. D. Hook & Thomson. The latter species is now known as Stegnogramma griffithii (T. Moore) K. Iwats. and is a member of the Thelypteridaceae.
openaire   +2 more sources

Typification and Identity of Adiantum tetragonum (Pteridaceae)

open access: yesAmerican Fern Journal, 2005
Adiantum tetragonum Schrad., a rare and endemic species to Brazil, is typified, described, and illustrated. This is the first report and collection of this species in 180 years.
Prado, Jefferson, Sundue, Michael
openaire   +3 more sources

ATLAS DE LAS ESPORAS DE PTERIDÓFITOS DE CHIPAQUE (CUNDINAMARCA, COLOMBIA)

open access: yesCaldasia, 2006
Se describen las esporas de 53 especies de pteridófitas (helechos y plantas afines)agrupadas en 25 géneros y 17 familias, presentes en la vereda Marilandia, municipiode Chipaque, Cundinamarca.
CONTRERAS-DUARTE ANDRÉS RICARDO   +2 more
doaj  

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