Results 101 to 110 of about 6,364 (207)

Palynological analysis of Dennstaedtiaceae taxa from the Paranaense Phytogeografic Province that produce monolete spores and its systematic implications (I): Blotiella lindeniana , Histiopteris incisa and Paesia glandulosa [PDF]

open access: yes, 2017
The genera of Dennstaedtiaceae have sporophytes with very different morphological characteristics between each other, and this feature has made difficult the systematic circumscription of the family.
Marquez, Gonzalo Javier   +2 more
core   +2 more sources

Floristic inventory and quality assessment of Bessey Creek Nature Preserve, Cheboygan County, Michigan, 2011. [PDF]

open access: yes, 2011
Field Biology of PlantsWetlands are habitats that provide critical ecosystem services. As transitional habitats between terrestrial and aquatic environments, wetlands contain plant communities that are typically species rich.
Dorey, Jenna E.   +2 more
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

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

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   +4 more sources

Primer registro de Cyathea fulva (Cyatheaceae, Polypodiopsida) en el Estado de México

open access: yesBotan‪ical Sciences, 2008
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Carmen Zepeda   +3 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  

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

Germination of spores and gametophytes of "Polystichum montevidense" (Spreng.) Rosenst. ("Dryopteridaceae") [PDF]

open access: yes
Se presentan características sobre la germinación de las esporas, el desarrollo gametofítico y la estructura de los gametofitos adultos de Polystichum montevidense (Spreng.) Rosenst. obtenidos mediante cultivos estériles. Se encuentra que los esporangios
J. Chambi, Cristina, M. Cardozo, Rubén
core   +2 more sources

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  

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