Results 51 to 60 of about 6,307 (194)

Profundizando en la evolución de los helechos: un enfoque mecanicista a los principales conceptos y técnicas de estudio [PDF]

open access: yes, 2014
In this review, we report on the most important ideas and features in the field of fern evolution, with particular interest into the main evolutionary mechanisms that shaped the evolutionary history of their diversification. An exhaustive account for the
Ainoüche, Abdelkader   +2 more
core   +2 more sources

Occurrence of galls in Microgramma mortoniana (Polypodiopsida: Polypodiaceae) from a subtropical forest, Brazil

open access: yesLilloa, 2020
The galls are structures formed of plant tissues in response to the activity of different types of organisms, especially by insects. As a consequence of an intimate relationship with their host plants, most of these insects have a very narrow host range.
Carlos R. Lehn   +3 more
doaj   +1 more source

Estudio taxonómico y filogenético de las variedades de Struthiopteris spicant (L.) Weiss (Blechnaceae, Polypodiopsida) en Europa [PDF]

open access: yes, 2017
Struthiopteris spicant (L.) Weiss es un helecho con una amplia distribución en el hemisferio norte, en América y Eurasia. Presenta cierta plasticidad fenotípica, de manera que algunas entidades subordinadas han sido descritas, siendo consideradas la ...
Molino de Miguel, Sonia
core   +1 more source

Defense mutualisms enhance plant diversification [PDF]

open access: yes, 2014
The ability of plants to form mutualistic relationships with animal defenders has long been suspected to influence their evolutionary success, both by decreasing extinction risk and by increasing opportunity for speciation through an expanded realized ...
Agrawal, Anurag A., Weber, Marjorie G.
core   +1 more source

Dryopteridaceae (Polypodiopsida) no estado de Minas Gerais, Brasil

open access: yesLundiana: International Journal of Biodiversity, 2009
A taxonomic survey of Dryopteridaceae Herter (Polypodiopsida) was carried out in the state of Minas Gerais as a contribution to the knowledge of the state fern flora. This study was based on personal collections, field observations and material deposited in the Brazilian herbaria.
Priscila Aparecida Garcia   +1 more
openaire   +1 more source

Plants and Insect Eggs: First Report of a Katydid Using a Fern as Host for Oviposition

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
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

RECOGNITION OF THE GENUS MYRIOPTERIS (PTERIDACEAE, POLYPODIOPSIDA) IN BRAZIL

open access: yesDarwiniana, nueva serie, 2019
In the present work, the genus Myriopteris is mentioned for the first time for Brazil, represented by M. myriophylla, a species of wide distribution in the American continent, from Mexico to Argentina, but never before verified for this country. Furthermore, we provide a description of the sole species found, along with an image and notes.
Vinícius Antonio de Oliveira Dittrich   +1 more
openaire   +2 more sources

The role of Alpine botanical gardens in integrating germplasm bank collections and mission

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 2, Page 680-692, March 2026.
This study underscores the vital role of Alpine botanical gardens (ABGs) in safeguarding Europe's alpine biodiversity amid climate change and habitat loss. By acting as living laboratories and reservoirs of plant genetic resources, ABGs bridge ex situ and in situ conservation, supporting ecosystem resilience and informing restoration strategies.
Marco Canella   +19 more
wiley   +1 more source

A Survey on the Pteridophyte Flora of the 18 Selected Sacred Groves in Chalavara Grama Panchayath, Palakkad District, Kerala [PDF]

open access: yes, 2018
An exploratory survey conducted on Pteridophytic flora in the 18 selected sacred groves of Chalavara Grama panchayath, Ottapalamtaluk, Palakkad district, Kerala lead to the collection of 26 species of pteridophytes coming under 20 genera and 14 ...
K, P. K. (Praveen), S, U. P. (Udayan)
core  

Palinomorfos miocenos del subsuelo de Santiago del Estero, Argentina. [PDF]

open access: yes, 2013
La asociación palinológica recuperada del pozo YPF.SE. LH.x-2 Los Horcones, provincia de Santiago del Estero, está dominada por Amaranthaceae/ Chenopodioideae y algas verdes continentales, con Nothofagaceae y Malvaceae subordinadas.
Ottone, Eduardo Guillermo   +2 more
core   +2 more sources

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