Abstract Parablechnum is the most diverse genus in fern family Blechnaceae, with about 70 species, mainly from Central and South America, Austropacific, a few Africa. Species delimitation challenging, regional studies vary species recognized. This generally found humid mid- to high-elevation forests, especially Andes. Ecuador notable for its high richness, particularly poorly explored Cordillera del Cóndor, sub-Andean range distinctive geology contributing plant diversity endemism. Since...

Abstract Inferring general biogeographic patterns in the sub‐Antarctic region has been challenging due to disparate geological origins of its islands and archipelagos—ranging from Gondwanan fragments uplifted seafloor more recently formed volcanic islands—and remoteness these island systems, spread around austral continental landmasses. Here, we conduct phylogenetic reconstruction, divergence time estimation, Bayesian Island Biogeographic analyses reconstruct spatio–temporal colonization...

In the fern family Blechnaceae, Cranfillia Gasper & V.A.O.Dittrich and Austroblechnum are two genera recently described from splitting of Blechnum L. The assignation species to or could be difficult due their morphological similarities. Focusing on bakeri (C.Chr.) V.A.O.Dittrich, based new molecular evidence, we show that actually belongs genus as Vázquez Ferreira S. Molino, comb. nov. This combination extends distribution Madagascar East Africa. Additionally, propose partially adnate basal...

The family Blechnaceae is a moderately sized leptosporangiate fern lineage, with 24 genera and around 250 species. Struthiopteris accommodates small to medium‐sized, dimorphic, pinnate It composed of six northern species: S. spicant distributed in western parts Europe North America; fallax endemic Iceland; niponica , amabilis castanea are Japan, hancockii occurs Japan Taiwan. Due the lack global review its highly interesting geographical distribution, this genus merits further study clarify...

The name Parablechnum christii (C. Chr.) Gasper & Salino has been applied to a small species with few pairs of short pinnae that is endemic Costa Rica and Panama. After reviewing type material this name, we conclude it misapplied is, in fact, synonym P. falciforme (Liebm.) Salino, an older name. Because the specimens previously identified as lack propose talamancanum S. Molino R. C. Moran for these plants. mountains Panama, from 1200 3350 m.

Abstract Premise The historical biogeography of ferns is typically expected to be dominated by long‐distance dispersal due their minuscule spores. However, few studies have inferred the a large and widely distributed group test this hypothesis. Our aims were determine extent which vs. vicariance shaped history fern family Blechnaceae, explore ecological correlates diversification, whether these patterns differ between northern southern hemispheres. Methods We used sequence data for three...

Recientemente ha sido publicada una nueva propuesta de clasificación las plantas vasculares sin semilla (PPG1) hasta el rango género, basada en caracteres morfológicos y filogenias moleculares, siendo consensuada por un gran número especialistas pteridología. Tras año desde su aparición ampliamente aceptada la comunidad científica. Esta presenta serie importantes cambios respecto a sistemas anteriores, entre ellos empleado para Flora Iberica I. Este trabajo plantea actualización del PPG1...

Parablechnum is the most diverse genus of Blechnaceae (ca. 65 species), with a pantropical distribution and two centers diversity, in America Austro-Pacific region. The species are dimorphic, often erect rhizomes rhizomatic scales, 1-pinnate fronds, truncate blade at base, conform apex stalked pinnae. This group presents many taxonomic problems, needing more detailed studies to resolve these conflicts separation between species. work deals American complex P. cordatum which cordatum,...

Stomata are very conserved structures in plants, which allows and control the gas exchange. This ecophysiological fact appears to be critical ecology adaptation of plants environment. Plant individuals can, among other issues, adjust size density stomata adapt themselves hydric, thermic light regimes. In turn, this led reduction transpiration water losses, is crucial areas with Mediterranean climate. The fern Osmunda regalis has populations both biogeographical regions Iberian Peninsula...

Blechnaceae Newman (1844: 8) is a subcosmopolitan family of leptosporangiate ferns (Polypodiopsida), which comprises around 250 species (Pteridophyte Phylogeny Group 2016). Until recently, most this diversity fell under one, large genus Blechnum Linnaeus (1753: 1077), but after the accumulation strong evidence its non-monophyletic status (Shepherd et al. 2007, Gabriel y Galán 2013, Perrie 2014, Gasper 2017), it was split into several entities. Thus, in current conception, formed by 24 genera...

En este trabajo se incluyen novedades de interés corológico sobre tres helechos que son desconocidos o escasos en la Península Ibérica. primer lugar, testimonia por primera vez presencia Polystichum braunii Por otro lado, aporta tercera localidad conocida del híbrido Asplenium × aran-tohanum. último, extiende notablemente hacia el interior peninsular distribución Struthiopteris spicant var. homophyllum.

Las plantas vasculares que no forman semillas son conocidas con el nombre vulgar de helechos, presentando unas 120 especies en la península ibérica, más abundantes ambientes forestales húmedos y saxícolas. En entornos urbanos semiurbanos suelen ser muy numerosos, un hecho parece estar unido a escasa presencia sus esporas atmósfera estas zonas, comparación otras partículas biológicas como las fúngicas o los granos polen. El objetivo este trabajo es proporcionar una clave determinación tipos...

Sporangiasters are an uncommon type of paraphyses, occurring in a handful leptosporangiate fern genera. We report sporangiasters Parablechnum nesophilum, which is their first recorded occurrence the Blechnaceae. provide evidence homology to sporangia and discuss functional significance. The presence P. nesophilum surprising because species has well-developed indusium, paraphyses generally most common exindusiate ferns. surmise that these act as second stage protection for developing after...

Nowadays, functional traits are widely used to study autoecological aspects in plant species. The analysis of these among climatic gradients allows us know the strategy that plants follow depending on resource availability. Referring plants, measured leaves have a special importance; we can find SLA (Specific Leaf Area), LDMC (Leaf Dry- Matter Content) and LT Thickness). In this work, four species genus Asplenium. As extremes gradient, focused our both bioclimatic regions existing Iberian...

Stomata are very conservative structures in plants, which allows and control the gas exchange. This ecophysiological fact appear to be critical ecology adaptation of plants environment. Plant individuals can, among other issues, adjust size density stomata adapt themselves hydric, thermic light regimes. In turn, this led reduction transpiration water losses, is crucial areas with Mediterranean climate. The fern Osmunda regalis have populations both biogeographical regions Iberian Peninsula...

Nowadays, functional traits are widely used to study autoecological aspects in plant species. The analysis of these among climatic gradients allows us know the strategy that plants follow depending on resource availability. Referring plants, measured leaves have a special importance; we can find SLA (Specific Leaf Area), LDMC (Leaf Dry-Matter Content) and LT Thickness). In this work, four species genus Asplenium. As extremes gradient, focused our both bioclimatic regions existing Iberian...

Nota necrológica de nuestro compañero José María Gabriel y Galán Moris.