Palynological analysis of Sphaeropteris gardneri (Cyatheaceae, Pteridophyta) [PDF]
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 +2 more
exaly +15 more sources
Sphaeropteris lepifera is a tree fern in the Cyatheaceae, a family that has played an important role in the evolution of plant systems. This study aimed to analyze the complete chloroplast genome of S.
Qingdi Hu +8 more
exaly +4 more sources
Sphaeropteris lepifera, a rare and endangered species belonging to the family Cyatheaceae, is often referred to as a “living fossil” and possesses significant ornamental value. This study investigated the survival status of four wild S.
Xiaohua Ma +7 more
exaly +3 more sources
The scaly tree ferns (Cyatheaceae-Polypodiopsida) of Brazil [PDF]
A synopsis of all scaly tree fern species (Cyatheaceae) occurring in Brazil is presented. We recognize 51 species in three genera [Sphaeropteris one species, Alsophila four species (one subspecies, two varieties), and Cyathea 45 species (one variety ...
Anna Weigand, Marcus Lehnert
doaj +2 more sources
Historical reconstruction of climatic and elevation preferences and the evolution of cloud forest-adapted tree ferns in Mesoamerica [PDF]
Background Cloud forests, characterized by a persistent, frequent or seasonal low-level cloud cover and fragmented distribution, are one of the most threatened habitats, especially in the Neotropics.
Victoria Sosa +3 more
doaj +4 more sources
Species richness of Cyatheales in the upper Santo Domingo Canyon, Antioquia, Colombia [PDF]
The Regional Protective Forest Reserve of the Canyons of the Melcocho and Santo Domingo Rivers in eastern Antioquia, Colombia, spans 26,533 ha with elevations from 706 to 2,937 m above sea level.
Andrés Montoya-López, Marcus Lehnert
doaj +5 more sources
Propagación de dos helechos arborescentes (Cyatheaceae) del bosque nuboso guatemalteco por medio de tres metodologías diferentes [PDF]
Los helechos arborescentes de la familia Cyatheaceae están en especial peligro. Son organismos de crecimiento lento, y su extracción de los bosques originarios para el uso como sustituto de sustrato para bromelias y orquídeas ha colocado en riesgo las ...
Andrea Cabarrús
doaj +2 more sources
Actinostachys minuta, a new species of grass fern from Mindanao, Philippines [PDF]
Actinostachys minuta Amoroso & Coritico (Schizaeaceae), from Mindanao, Philippines, is described herein as a new species. This species is distinguished from all other species of Actinostachys (grass ferns) by its notably short and narrow fronds ...
Victor B. Amoroso +2 more
doaj +3 more sources
Assessing the invasion risk of traded alien ferns using species distribution models [PDF]
Risk analysis plays a crucial role in regulating and managing alien and invasive species but can be time-consuming and costly. Alternatively, combining invasion and impact history with species distribution models offers a cost-effective and time ...
Emily J. McCulloch-Jones +3 more
doaj +3 more sources
Efecto de la altitud, pendiente y exposición geográfica en la distribución de helechos arborescentes
Antecedentes y Objetivos: El conocimiento de los rasgos topográficos de un sitio es importante para comprender la diversidad local y monitorear la respuesta de las plantas de alto interés de conservación al cambio climático o al cambio de uso de suelo ...
Pablo Antúnez +4 more
doaj +1 more source

