Results 61 to 70 of about 1,105 (168)

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  

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

Studies on Fern of Lesser Sunda Islands I: Checklist of the Genus Adiantum (Pteridaceae)

open access: yesJurnal 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

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

Synopsis of the genus Anopteris (Pteridophyta, Pteridaceae)

open access: yesBiosystems Diversity, 2016
In the article a synopsis of the genus Anopteris (Prantl) Diels is given. The synopsis of Anopteris includes three species. For each species, the Latin name, basionym, nomenclatural citation, synonyms, information on locus classicus, type, habitat, and distribution are given.
VAGANOV A.V., SHMAKOV A.I., FRIESEN N.
openaire   +4 more sources

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

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

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  

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

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

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