Results 101 to 110 of about 6,307 (194)

Blechnum rosulatum (Blechnaceae, Polypodiopsida), a new species of fern from Tocantins, Brazil [PDF]

open access: yesActa Botânica Brasílica
We describe a new species of Blechnum from Tocantins, Brazil: Blechnum rosulatum sp. nov. (Blechnaceae). Information about its geographical distribution, habitat, phylogenetic placement and comments on conservation status are given, as well as an updated
Bianca Schindler   +5 more
doaj   +1 more source

Genetic composition of Swiss and Austrian members of the apogamous Dryopteris affinis complex (Dryopteridaceae, Polypodiopsida) based on ISSR markers [PDF]

open access: yes, 2018
We have investigated genetic variability among 56 individuals of the apogamous Dryopteris affinis complex from 9 populations in Switzerland and Austria using inter-simple sequence repeats.
Krattinger, Kurt, Schneller, Jakob
core  

Potential of morphology-based Pterydophyta diversity in supporting field-based practicum of low plant botany learning

open access: yesJPBI (Jurnal Pendidikan Biologi Indonesia)
Field-Based Practicum (FBP) about Pterydophyta diversity material in Low plant botany learning is very important, even though the facts in the field show that FBP is still minimally carried out.
Y. Yudhistian   +1 more
doaj   +1 more source

KEANEKARAGAMAN TANAMAN PAKU (PTERIDOPHYTA) DI JALUR CIWALEN TAMAN NASIONAL GUNUNG GEDE PANGRANGO, JAWA BARAT [PDF]

open access: yes, 2019
Abstrak Taman Nasional Gunung Gede Pangrango merupakan salah satu zona konservasi di Jawa yang memiliki keanekaragaman hayati yang tinggi. Di taman nasional ini tumbuh berbagai jenis tumbuhan paku.
Puspita, Ervina
core   +2 more sources

The Blechnum occidentale (Blechnaceae, Polypodiopsida) species group in southern and southeastern Brazil

open access: yesPhytotaxa, 2015
A taxonomic study of the Blechnum occidentale species group in southern and southeastern Brazil (Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul) was carried out and eleven taxa were accepted (nine species, two hybrids).
De Oliveira Dittrich, Vinicius Antonio   +2 more
openaire   +3 more sources

Vegetation heterogeneity of black alder forests in and around El-Kala Biosphere Reserve, northeastern Algeria

open access: yesBotan‪ical Sciences, 2019
Background: Despite its ecological importance, the study of Algerian alder forests has been largely neglected, even though they represent the largest ones of their kind in North Africa.
Abdeldjabar Necer   +3 more
doaj   +1 more source

DIVERSITY AND DISTRIBUTION OF THE THELYPTERIDACEAE (POLYPODIOPSIDA) IN PAKISTAN

open access: yesThe Journal of Animal and Plant Sciences
The present taxonomic study of Thelypteridaceae (Polypodiopsida) in Pakistan is based on the study of fern specimens in 15 herbaria in Asia, Europe and USA. A total of six genera and eight species are recognized; a key, detailed description of species, distribution in Pakistan and worldwide, ecology, and a list of specimens examined from Pakistan are ...
M Irfan, S Fawcett
openaire   +1 more source

Cyatheales (Polypodiopsida) do Corredor de Biodiversidade do norte do Pará, Brasil

open access: yesHoehnea
Este artigo é parte de uma série onde são apresentadas as espécies de licófitas e samambaias do Corredor de Biodiversidade do Norte do Estado do Pará e faz parte do projeto "Diagnóstico da Biodiversidade das Unidades de Conservação Estaduais do Mosaico ...
Luiz Armando de Araújo Góes-Neto   +1 more
doaj   +1 more source

Esporófito de Huperzia mandiocana (Raddi) Trevisan (Lycopodiaceae): morfoanatomia e ontogênese [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pos-Graduação em Biologia Vegetal, Florianópolis, 2009.Lycopodiaceae inclui quatro gêneros, Huperzia distingüe-se dos outros três gêneros por ...
Kessler, Eduardo
core  

Long-term monitoring across elevational gradients to assess ecological hypothesis : a description of standardized sampling methods in oceanic islands and first results [PDF]

open access: yes, 2014
We are launching a long-term study to characterize the biodiversity at different elevations in several Azorean Islands. Our aim is to use the Azores as a model archipelago to answer the fundamental question of what generates and maintains the global ...
Ah-Peng, Claudine   +6 more
core  

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