Results 11 to 20 of about 478 (165)

Cyatheaceae endémicas del Perú

Revista Peruana de Biología, 2013
Esta es una de las familias que incluye mayormente helechos arborescentes. En el Perú, esta familia está representada por cuatro géneros y más de 60 especies (Tryon & Stolze 1989a, Smith et al., 2005).
Blanca León
doaj   +4 more sources

Palynological analysis of Sphaeropteris gardneri (Cyatheaceae, Pteridophyta) [PDF]

Anais da Academia Brasileira de Ciências, 2010
The spore morphology and wall ultrastructure of Sphaeropteris gardneri (Hook.) R.M. Tryon from Brazil were analyzed with LM, SEM and TEM. The spores are trilete with an ornamentation formed of short low ridges with spines in their margins.
Gonzalo J. Marquez, Marta A. Morbelli, Gabriela E. Giudice   +2 more
doaj   +7 more sources

La familia Cyatheaceae (Pteridophyta) en Argentina The family Cyatheaceae (Pteridophyta) in Argentina

Boletín de la Sociedad Argentina de Botánica, 2010
La familia Cyatheaceae comprende alrededor de 500 especies de helechos arborescentes. Su distribución es pantropical y en Argentina se encuentra representada por 4 especies, reunidas en los géneros Alsophila y Cyathea: A. setosa, A.
Gonzalo J Marquez
doaj   +2 more sources

Shape and Size Adaptations of Planthoppers Along an Altitudinal Gradient on Mount Wilhelm (Papua New Guinea). [PDF]

Ecol Evol
Mountains are an ideal context to study species community and adaptation in relation to environmental changes such as temperature. Cixidae show niche conservatism at high altitude, with conserved forewing size and shape. Conversely, size and shape variations of forewings of Achilidae and Derbidae traduce an adaptation to high altitudes.
Elsa F, Adeline SP, Raphaël C, Eric G.
europepmc   +2 more sources

Distribution model and prediction of the tree fern Alsophila costularis Baker (Cyatheaceae) in China. [PDF]

Ecol Evol
We employed an optimized MaxEnt model to evaluate the relative contribution of each bioclimatic variable and predict the suitable habitat for Alsophila costularis Baker under past, current, and future climate scenarios, which is an endangered relict tree fern known as a living fossil.
Wang Z, Li N, Xu R, Ying Z, Ruan X, Wang T, Liao W, Su Y.   +7 more
europepmc   +2 more sources

A comprehensive illustrated protocol for clearing, mounting, and imaging leaf venation networks. [PDF]

Appl Plant Sci
Abstract Premise Leaf venation network architecture can provide insights into plant evolution, ecology, and physiology. Venation networks are typically assessed through histological methods, but existing protocols provide limited guidance on processing large or challenging leaves.
Niewiadomski I, Antonio M, Aparecido LMT, Boakye M, Carlos S, Echevarria A, Fontao A, Mann J, Matos IS, Salinas N, Vu B, Blonder BW.   +11 more
europepmc   +2 more sources

Through the eyes of the Andean bear: Camera collar insights into the life of a threatened South American Ursid. [PDF]

Ecol Evol
This study used a camera‐equipped GPS collar on a male Andean bear in southeastern Peru, revealing rare behaviors like courtship, novel diets, and geophagy. These findings from the Kosñipata Valley provide valuable insights into the poorly understood ecology of Andean bears and suggest many areas for further research.
Pillco Huarcaya R, Whitworth A, Mamani N, Thomas M, Condori E.   +4 more
europepmc   +2 more sources

Fern mycorrhizae do not respond to fertilization in a tropical montane forest. [PDF]

Plant Environ Interact
In the present study, we assessed the root‐associated fungi of two epiphytic and two terrestrial fern species in a 15‐year fertilization experiment in the Ecuadorean Andes. We found no effect of fertilization on the diversity or abundance of the fungal assemblages associated with ferns.
Guillen T, Kessler M, Homeier J.
europepmc   +2 more sources

Sphaeropteris cooperi: Australian Tree Fern

EDIS, 2007
The Australian tree fern (Sphaeropteris cooperi) is a tropical, single-trunked fern native to eastern Australia, growing 15-30 feet tall. It has finely textured, lacy, bipinnately compound leaves and thrives in USDA zones 10B-11, in well-drained, sandy ...
Edward Gilman
doaj   +1 more source

The Cyatheaceae (Polypodiopsida) of Peru

Brittonia, 2011
A summary is presented of all Peruvian species of scaly tree ferns (Cyatheaceae). A total of 83 species is native to Peru (Sphaeropteris 1 sp., Alsophila sect. Alsophila 9 spp., Alsophila sect. Gymnosphaera 1 sp., Cyathea 72 spp.), with 13 endemic species in Cyathea and one in Alsophila.
  +8 more sources