Results 81 to 90 of about 2,188 (201)
Морфология спор Pityrogramma calomelanos (L.) Link (Pteridaceae)
Turczaninowia, 2017 Методом сканирующей электронной микроскопии (СЭМ) проведено сравнительное исследование ультраструктуры поверхности спор шести образцов Pityrogrammacalomelanos (L.) Link (Pteridoideae, Pteridaceae), собранных в разных участках ареала: в Южном Китае (о-в ...
A. V. Vaganov +5 more
doaj
Common but Least Noticed: Diversity of the Mangrove Fern Acrostichum aureum in Hainan Island, China
Biological Diversity, Volume 2, Issue 4, Page 143-153, December 2025.Acrostichum aureum across nine coastal sites in Hainan Island was examined using morphological, cytometric, and genomic approaches. Three priority conservation areas are proposed to preserve extant genetic diversity and maintain habitat connectivity. ABSTRACT Acrostichum aureum across nine coastal sites in Hainan Island was examined using morphological,
Bingyan Guo +9 more
wiley +1 more source
Studies on Fern of Lesser Sunda Islands I: Checklist of the Genus Adiantum (Pteridaceae)
Jurnal Biodjati, 2020 Adiantum or maidenhair fern is one of the largest genera in Pteridaceae. We survey their species diversity in Lesser Sunda Islands, Indonesia through the living collection and herbarium examination. Seventeen species of Adiantum were recorded.
Wenni Setyo Lestari, Bayu Adjie
doaj +1 more source
Nordic Journal of Botany, Volume 2025, Issue 12, December 2025.Hyptidinae (Lamiaceae), with 19 genera and approximately 400 species, is a major component of the Brazilian Cerrado, with many novelties recently published. Two new additions to the subtribe are proposed here: Hyptis raymondii, currently endemic to the municipality of Cavalcante, Goiás State, and Hypenia filicifolia, endemic to the Federal District ...
Guilherme Medeiros Antar +3 more
wiley +1 more source
Spore morphology of Onychium ipii Ching (Pteridoideae, Pteridaceae)
Turczaninowia, 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
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Ecography, Volume 2025, Issue 11, November 2025.About 14% of all fern species have chlorophyllous spores, which lack dormancy, have thin walls, and have a shorter viability (only a few days in some species). These spores should have limited dispersal distances and be more susceptible to harsher climatic conditions, raising questions about the evolutionary and ecological significance of this trait ...
Daniela Mellado‐Mansilla +5 more
wiley +1 more source
Typification and Identity of Adiantum tetragonum (Pteridaceae)
American 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
Novelties in Adiantum (Pteridaceae) from South America [PDF]
We describe two new species of Adiantum (Pteridaceae): A. nodosum and A. pseudocajennense. These species occur in the lowland rainforests of the Amazon Basin at 100-350 m in elevation.
Hanna Tuomisto +3 more
core +1 more source
ATLAS DE LAS ESPORAS DE PTERIDÓFITOS DE CHIPAQUE (CUNDINAMARCA, COLOMBIA)
Caldasia, 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
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Distribution of phytoliths in plants: a review
Geology, 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