Results 51 to 60 of about 1,228 (198)

Taxonomic notes on Asplenium pseudoangustum (Aspleniaceae): a redescription based on spore morphology and distribution novelties

open access: yesRodriguésia, 2023
Asplenium pseudoangustum is a poorly understood species known from the Peruvian Amazon forests. Due to morphological similarities with A. angustum and A. serratum, the position of A. pseudoangustum among the called A.
Atiles Reis   +3 more
semanticscholar   +1 more source

Phylogeny and biogeography of the fern genus Hymenasplenium (Aspleniaceae), with special reference to island speciation

open access: yesJournal of Systematics and Evolution
Although considerable progress has recently been made in the phylogeny of Hymenasplenium, the genus remains poorly investigated; specifically, the diversification and historical biogeography of the genus have been little studied.
Ke-Wang Xu   +16 more
semanticscholar   +1 more source

Fern Habitats and Rare Ferns in Oklahoma

open access: yesOklahoma Native Plant Record, 2008
This paper features some of the more common fern habitats in Oklahoma and provides information on four rare Oklahoma ferns from two fern families: Aspleniaceae and Pteridaceae. Surprisingly, ferns can be found in a variety of habitats across Oklahoma.
Bruce A. Smith
doaj   +1 more source

Taxonomic investigation of monilophytes from North Waziristan Tribal District KP, Pakistan

open access: yesInternational Journal of Applied and Experimental Biology
Floristic surveys and assessment of relationships between species richness and elevational gradients help in developing more efficient conserving strategies for biodiversity under climate change. North Waziristan Tribal District (NWD) has been identified
Tariq Aziz, Alia Gul, Jan Alam
doaj   +1 more source

Micromorphology of fern spores as a tool in taxonomy of East-Central European species from the family Aspleniaceae (Polypodiopsida)

open access: yesActa Societatis Botanicorum Poloniae
The family Aspleniaceae consists of ca. 730 fern species found primarily in the tropics but present also in the temperate zone. Recently, researchers have been increasingly interested in spore morphology, as it provides valuable information used in ...
P. Szkudlarz   +4 more
semanticscholar   +1 more source

Diplazium subquadripinnatum (Copel.) Lellinger (Athyriaceae): A New Record for the Flora of Niue Resolves an 85‐Year Mystery

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 3, September 2026.
A fern collection made by T. G. Yuncker on 27 January 1940 from tropical rainforest forest in Niue had only been identified to its genus and lacked a species determination. Yuncker in his 1943 flora referred the collection to Athyrium Roth, whereas W. R. Sykes in his 1970 flora treated it as Diplazium Sw. Examination of the Yuncker 9916 specimen (BISH!)
Peter B. Heenan
wiley   +1 more source

Asplenium coronatum (Aspleniaceae), a new fern species from the Brazilian Atlantic Forest

open access: yesPhytotaxa, 2022
A new fern species, Asplenium coronatum (Aspleniaceae), endemic to the Atlantic Forest is described. This species belongs to the Asplenium serratum complex, which comprises species that have simple, entire laminae with free veins ending near the margin ...
Atiles Reis   +3 more
semanticscholar   +1 more source

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

open access: yesAmerican Journal of Botany, Volume 113, Issue 8, August 2026.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian   +9 more
wiley   +1 more source

Chemical Composition and Cytoprotective Activities of Methanolic Extract of Asplenium adiantum-nigrum L. (Aspleniaceae)

open access: yesHorticulturae, 2022
Ferns can be a source of polyphenolic compounds, with the fronds being the main parts described in ethnopharmacological studies. The present study screened polyphenolic phytochemicals and evaluated in vitro activities of a methanolic extract of Asplenium
Adrià Farràs   +5 more
semanticscholar   +1 more source

Botanical inventory of the early book herbaria of Leonhard Rauwolf from southern France and northern Italy (1560–1563)

open access: yesTAXON, Volume 75, Issue 4, August 2026.
Abstract Sixteenth‐century herbaria are the oldest plant collections that survive today and, as such, they provide valuable insights in past floras and historical botanical interactions. One of the most fascinating still extant 16th‐century herbaria is the four‐volume collection of the German physician, botanist and traveler Leonhard Rauwolf (1535 ...
Anastasia Stefanaki   +5 more
wiley   +1 more source

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