Results 1 to 10 of about 56 (42)

Taxonomy and spore morphology of selected taxa of Cheilanthoideae and Pteridoideae (Pteridaceae) from Pakistan

open access: yesMicroscopy Research and Technique, 2021
AbstractTaxonomy and spore morphology of 12 taxa of Cheilanthoideae and Pteridoideae (Pteridaceae, Polypodiales) from Pakistan is illustrated with scanning electron microscopy images based upon the specimens collected from various localities. A total of six genera belong to 12 taxa viz. Actiniopteris radiata, Aleuritopteris albomarginata, A.
Muhammad Irfan, Waheed Murad, Gul Jan
exaly   +4 more sources

Морфология спор Taenitis, Syngramma и Austrogramme (Pteridoideae, Pteridaceae) из Юго-Восточной Азии [PDF]

open access: yesTurczaninowia, 2018
A comparative study of spores of seven pecies: Taenitis blechnoides (Willd.) Sw., T. hookeri (C. Chr.) Holttum, T. pinnata (J. Sm.) Holttum, Syngramma alismifolia (Presl) J. Sm., S. lobbiana (Hook.) J. Sm., S. quinata (Hook.) Carruth., and Austrogramme boerlageana (Alderw.) Hennipman from South-Eastern Asia was performed using the method of scanning ...
Vaganov, A.V.   +4 more
core   +10 more sources

Typification of the names associated with Anogramma lorentzii (Pteridaceae: Pteridoideae) [PDF]

open access: yesPhytotaxa, 2016
The genus Anogramma Link (1841: 137) comprises about six species of tropical and temperate regions of America, Ascension Island, southern Europe and Africa east to New Zealand (Tryon & Tryon 1982). The genus is distinguished especially by the annual habit of the sporophyte and the persistence of the gametophyte by means of tubercles.
Arana, Marcelo D.   +2 more
core   +9 more sources

Spore morphology of Onychium ipii Ching (Pteridoideae, Pteridaceae)

open access: yesTurczaninowia, 2017
Методом сканирующей электронной микроскопии проведено сравнительное исследование морфологии спор Onychium ipii Ching. Выявлены основные признаки, характерные для спор вида. Споры трехлучевые, тетраэдрические, в проксимально-полярном и дистально-полярном положениях треугольно-округлые, стороны споры слегка выпуклые.
A.V. Vaganov   +4 more
core   +6 more sources

A global plastid phylogeny of the brake fern genus Pteris (Pteridaceae) and related genera in the Pteridoideae

open access: yesCladistics, 2014
AbstractThe brake fern genus Pteris belongs to the Pteridaceae subfamily Pteridoideae. It contains 200–250 species distributed on all continents except Antarctica, with its highest species diversity in tropical and subtropical regions. The monophyly of Pteris has long been in question because of its great morphological diversity and because of the ...
Zhang, Liang   +12 more
openaire   +4 more sources

A Comparative Study of Spore Morphology of Some Pteridoideae Subfamily Genera

open access: yesBiosciences, Biotechnology Research Asia, 2014
1National Research Tomsk State University, Laboratory of Biogeochemical and of Remote Methods of Monitoring Environmental, prospekt Lenina, 36; 634050, Tomsk, Russia. 2,3Altai State University, South-Siberian Botanical Garden, Lenina st. 61; 656049, Barnaul, Russia.
Alexey V Vaganov
exaly   +2 more sources

The first record of the rare fern Pteris griffithii (Polypodiales: Pteridaceae: Pteridoideae) in the Bhutan Himalayas

open access: yesKorean Journal of Plant Taxonomy, 2022
Pteris griffithii Hook., one of the rarest fern species on the Indian subcontinent, is reported from Bhutan for the first time. The identity of this species was confirmed through morphological determination at the National Herbarium (THIM) of the National Biodiversity Centre (NBC) of Bhutan.
Rinchen DORJI   +3 more
openaire   +1 more source

Pteris tremula (Polypodiopsida: Pteridaceae): A Naturalized Species in Argentina

open access: yes, 2020
Pteris tremula (Polypodiopsida: Pteridaceae): A Naturalized Species in Argentina.—The cosmopolitan fern genus Pteris L. (subfamily Pteridoideae, Pteridaceae; PPG I, Journal of Systematics and Evolution 54:563–603.
Arana, Marcelo Daniel   +4 more
core   +1 more source

Phylogeny and systematics of the brake fern genus Pteris (Pteridaceae) based on molecular (plastid and nuclear) and morphological evidence

open access: yes, 2018
The brake fern genus Pteris belongs to Pteridaceae subfamily Pteridoideae. It is one of the largest fern genera and has been estimated to contain 200-250 species distributed on all continents except Antarctica.
Zhang, Liang   +3 more
core   +1 more source

Unraveling the chloroplast genome of Actiniopteris radiata from Saudi Arabia: Insights into genetic diversity in Pteridaceae [PDF]

open access: yes
This study reports the chloroplast genome sequence of Actiniopteris radiata from Jazan, Saudi Arabia, marking it as the inaugural fern species of the Actiniopteris genus to be sequenced and analyzed.
ALSHAMRANI, Salha Mesfer   +1 more
core   +1 more source

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