Results 51 to 60 of about 1,080 (171)
Spore morphology and its systematic implication in Pteris (Pteridaceae). [PDF]
Pteris (Pteridaceae) spores are usually trilete and can be distinguished by the perine ornamentation. The systematic value of spore morphology in Pteris is unclear, especially based on the renewed infrageneric classification of Pteris.
Yi-Shan Chao, Yao-Moan Huang
doaj +1 more source
A regional assessment of the indigenous vascular plants of Niue is presented using the IUCN Red List criteria. The assessment was undertaken during a community workshop that drew on the indigenous local knowledge and scientific information. The assessment comprised 197 named taxa and 8 indeterminate entities, with 4 (2.0%) taxa assessed as Extinct and ...
Peter B. Heenan +2 more
wiley +1 more source
Evolutionary mobility and genetic dynamics of MORFFO genes: shuttling among ancient plant lineages
Summary Plastid genomes (plastomes) of land plants are characterized by their architectural and genic content stability. However, fern plastomes exhibit unexpected dynamism, characterized by the presence of mobile protein‐coding genes (CDS) – Mobile Open Reading Frames in Fern Organelles (MORFFOs). We investigate the evolutionary dynamics of MORFFOs in
Paulo H. Labiak +3 more
wiley +1 more source
Морфология спор Pityrogramma calomelanos (L.) Link (Pteridaceae)
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
Validation of the family name Pteridaceae
Summary Recent research has shown that the name Pteridaceae cannot be used even if the family is circumscribed in a narrow sense. A Latin description of the family is provided in order that the name Pteridaceae be qualified to be conserved.
openaire +1 more source
Gametophytic phase of "Doryopteris triphylla" (Pteridaceae, Polypodiopsida).
Gametophytes of the Pteridaceae are moderately well known but there is still a quite large set of species to describe. Among these is Doryopteris triphylla, a member of the cheilanthoid clade (subgroup hemionitids). The main objective of this work is to describe the gametophyte of D. triphylla.
Seral, Andrea +1 more
openaire +4 more sources
Plants and Insect Eggs: First Report of a Katydid Using a Fern as Host for Oviposition
Ferns are the second most diverse lineage of vascular plants worldwide and are particularly abundant in tropical forests. However, the ecological significance of such remarkable diversity has been often underestimated. In this article, we report for the first time the observation of ferns, specifically Polytaenium cajenense (Desv.) Benedict ...
Rafael P. Farias +5 more
wiley +1 more source
Adaptive Significance of Nickel Hyperaccumulation by Plants
Metal hyperaccumulation may enhance plant fitness through multiple, non‐exclusive mechanisms, including elemental defense against herbivores and pathogens, altered pollinator interactions, and increased reproductive performance in metal‐rich soils. Metals may also affect plant–plant interactions via elemental allelopathy and improve stress tolerance ...
Molly E. Waddington +2 more
wiley +1 more source
Spore morphology of Onychium ipii Ching (Pteridoideae, Pteridaceae)
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
Studies on Fern of Lesser Sunda Islands I: Checklist of the Genus Adiantum (Pteridaceae)
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

