Results 61 to 70 of about 1,080 (171)

Undervalued Ecosystems: Ponds Boost Regional Macrophyte Diversity

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Ponds—depressional wetlands with ≤ 2 ha—are largely undervalued worldwide, despite serving as crucial diversity reservoirs. However, the extent to which ponds support diversity at the landscape scale is still underappreciated. Here, we investigate the contributions of ponds to macrophyte beta and gamma diversity in a subtropical wetland ...
Daniel Grasel   +3 more
wiley   +1 more source

Ceratopteris thalictroides (L.) Brongn. (Pteridaceae): Confirmation of its presence in the pteridoflora of Peru [PDF]

open access: yesActa Botânica Brasílica
We report the presence of Ceratopteris thalictroides based on a recent collection from northeastern Peru. This aquatic fern is widely distributed in the tropics, however, its presence in Peru remained uncertain and without a voucher until now.
Freddy Peláez   +2 more
doaj   +1 more source

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  

Distribution of phytoliths in plants: a review

open access: yesGeology, Ecology, and Landscapes, 2019
Phytoliths are ergastic siliceous substances present abundantly within intercellular spaces as well as inside the cells of numerous plants. Being made up of silica, they are nondegradable and hence found preserved as microfossils in various substrata ...
Rajat Sharma, Vinod Kumar, Rakesh Kumar
doaj   +1 more source

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

Morphology of spores of Pteris L. (Pteridaceae Reich.)

open access: yesІнтродукція Рослин, 2012
The data on morphological characters of spores of 14 taxa of Pteris L. (Pteridaceae Reich.) – Pteris altissima Poir., P. argyraea Moore, P. biaurita L., P. catoptera Kunze, P. cretica L., P. cretica cv. Albo-lineata, P. cretica cv. Parkeri, P. cretica cv.
L.A. Kovalska
doaj   +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

Flora vascular da Mata da Pavuna, Botucatu, SP, Brasil

open access: yesRodriguésia
A Mata da Pavuna é um fragmento de Floresta Estacional Semidecidual em um cânion com afloramento rochoso e solo raso, localizado no município de Botucatu, Estado de São Paulo. Foram amostradas as espécies vasculares em estádio reprodutivo e identificadas
Leonardo Biral, Julio Antonio Lombardi
doaj   +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

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