Results: 15

Ethnomedicinal and traditional uses of the Ferns of Khyber Pakhtunkhwa, Pakistan

Braz. j. biol; 84 (), 2024
Abstract Ferns are often used by indigenous people in Khyber Pakhtunkhwa, Pakistan. This study was designed to collect the ethnomedicinal and traditional knowledge of these locals about this group of vascular plants. Forty taxa belong to nineteen genera and ten families are used in the treatment of diffe...

Herbivory and leaf expansion of Cyathea phalerata Mart. (Cyatheaceae) in subtropical Atlantic Forest, southern Brazil

Braz. j. biol; 83 (), 2023
Abstract Herbivory is an interaction with great impact on plant communities since relationships between herbivores and plants are fundamental to the distribution and abundance of species over time and space. The aim of this study was to monitor the rate of leaf expansion in the tree fern Cyathea phalerat...

Phenolic substances and cyanogenesis in galled and non-galled tissue of the fern species Microgramma vacciniifolia

Braz. j. biol; 82 (), 2022
Galls, neo-formed plant structures that can occur in different organs, are generated by species-specific interaction with an inducing organism. Inducers manipulate the metabolism of its host. Microgramma vacciniifolia (Langsd. & Fisch.) Copel. is a Neotropical epiphytic fern that hosted two stem galls, o...

Floristic composition, structure and environmental characterization of Cyathea costaricensis population in a remnant cloud forest in Mexico

Rev. biol. trop; 69 (3), 2021
Abstract Introduction: Tree ferns are significant components of temperate, tropical and subtropical forests, contributing to shape complex forest stand structures. Objectives: 1) to describe the population structure of Cyathea costaricensis in a remnant cloud forest of West-central Mexico; 2) to characte...

Heterogeneity of fern communities in riparian forest remnants from the South Brazilian Campos (Pampa)

Braz. j. biol; 80 (4), 2020
Abstract Riparian forests present biotic and abiotic factors that influence environmental dissimilarity, which reflect specific fern distribution. The purpose of this this study was to evaluate the environmental heterogeneity associated to the terrestrial fern communities in riparian forest remnants in t...

Ontogenia de los esporangios y esporogénesis del helecho Phymatosorus scolopendria (Polypodiaceae)

Rev. biol. trop; 68 (2), 2020
Introducción: Las investigaciones sobre ontogenia de los soros, esporangios, paráfisis receptaculares y esporogénesis de los helechos leptosporangiados son escasas en la literatura científica. Objectivos: Describiry analizar la ontogenia de los soros, esporangios, paráfisis receptaculares y esporog...

Bryophyte community diversity and structure associated with Asplenium auritum fern (Aspleniaceae) in a Brazilian Atlantic forest fragment

Rev. biol. trop; 68 (1), 2020
Introducción: Los filtros ambientales locales ejercen influencia en la diversidad y en la estructura de las comunidades de briófitas, pero existen pocos estudios que analicen cómo las relaciones bióticas influyen en estas comunidades. Objetivo: Evaluar la influencia de la cobertura del helecho Asplen...

Vegetación asociada con helechales en el Parque Nacional Natural Serranía de Los Yariguíes, Colombia

Rev. biol. trop; 68 (4), 2020
Introducción: La alteración en la composición y estructura de la vegetación da paso a la introducción de especies consideradas invasoras, caso de Pteridium arachnoideum, que, por sus características de crecimiento por reproducción asexual y efecto alelopático, puede colonizar rápidamente; tal ca...

Phytosociological contrast of ferns and lycophytes from forest fragments with different surroundings matrices in southern Brazil

Braz. j. biol; 79 (3), 2019
Abstract Forest edges typically exhibit higher luminosity and lower humidity than the forest interior, resulting in an abiotic gradient. However, the degree of abiotic difference can be affected from the type of the matrix, influencing the selection of species. We compared the floristic and phytosociolo...