El redescubrimiento de Frullania weberbaueri Steph., incluyendo su primer reporte para Chile, estado de conservación y lectotipificación

We report the finding of a population of Frullania weberbaueri in Parque Nacional Pan de Azúcar, Antofagasta Province, Chile. This taxon was previously known only from the type specimen collected by August Weberbauer in Lima in 1901. The new gathering is fertile so we describe here its sexuality and perianths, together with the oil bodies and the habitat used by the species, and we provide a map of its known distribution. A lectotype for the name is here designated. This is the first record of a liverwort for the deserts of northern Chile, and the southernmost record for Frullania sect. Meteoriopsis.Se reporta el hallazgo de una población de Frullania weberbaueri en el Parque Nacional Pan de Azúcar, Provincia de Antofagasta, Chile. Este taxón se conocía previamente sólo de la colección tipo realizada por August Weberbauer en Lima en 1901. La nueva colección está fértil, por lo que se describen aquí la sexualidad y los periantos, junto con los cuerpos oleosos y el hábitat utilizado por la especie, y se provee un mapa de su distribución conocida. Se designa un lectotipo para el nombre. Este es el primer registro de una hepática para los desiertos costeros del norte de Chile, y el registro más austral para Frullania sect. Meteoriopsis

New national and regional bryophyte records, 69

descripción no proporcionada por scopu

World checklist of hornworts and liverworts

A working checklist of accepted taxa worldwide is vital in achieving the goal of developing an online flora of all known plants by 2020 as part of the Global Strategy for Plant Conservation. We here present the first-ever worldwide checklist for liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) that includes 7486 species in 398 genera representing 92 families from the two phyla. The checklist has far reaching implications and applications, including providing a valuable tool for taxonomists and systematists, analyzing phytogeographic and diversity patterns, aiding in the assessment of floristic and taxonomic knowledge, and identifying geographical gaps in our understanding of the global liverwort and hornwort flora. The checklist is derived from a working data set centralizing nomenclature, taxonomy and geography on a global scale. Prior to this effort a lack of centralization has been a major impediment for the study and analysis of species richness, conservation and systematic research at both regional and global scales. The success of this checklist, initiated in 2008, has been underpinned by its community approach involving taxonomic specialists working towards a consensus on taxonomy, nomenclature and distribution

One thousand plant transcriptomes and the phylogenomics of green plants

Abstract: Green plants (Viridiplantae) include around 450,000–500,000 species1, 2 of great diversity and have important roles in terrestrial and aquatic ecosystems. Here, as part of the One Thousand Plant Transcriptomes Initiative, we sequenced the vegetative transcriptomes of 1,124 species that span the diversity of plants in a broad sense (Archaeplastida), including green plants (Viridiplantae), glaucophytes (Glaucophyta) and red algae (Rhodophyta). Our analysis provides a robust phylogenomic framework for examining the evolution of green plants. Most inferred species relationships are well supported across multiple species tree and supermatrix analyses, but discordance among plastid and nuclear gene trees at a few important nodes highlights the complexity of plant genome evolution, including polyploidy, periods of rapid speciation, and extinction. Incomplete sorting of ancestral variation, polyploidization and massive expansions of gene families punctuate the evolutionary history of green plants. Notably, we find that large expansions of gene families preceded the origins of green plants, land plants and vascular plants, whereas whole-genome duplications are inferred to have occurred repeatedly throughout the evolution of flowering plants and ferns. The increasing availability of high-quality plant genome sequences and advances in functional genomics are enabling research on genome evolution across the green tree of life

Austral Hepaticae 53. Unraveling Hidden Diversity: a Novel Species of Frullania Raddi from New Zealand

Frullania crassissima J.J.Engel, von Konrat and Glenny, a member of the genus Frullania Raddi, is described and illustrated. It is morphologically most similar to F. setchellii, F. svihlana and F. falciloba, of New Zealand and F. vittiana of Lord Howe Island. The new species is also sister to F. squarrosula, F. nicholsonii, F. vittiana and F. falciloba in a previously published phylogenetic analysis. It shares with those species a falcate asymmetrical leaf lobule that is truncate at its apex. It differs from those species principally in the surface ornamentation of the perianth and leaf cell wall thickenings. It is currently only known from the type material, but is likely to be more widespread

The sporophyte of the Paleogene liverwort <i>Frullania varians</i> Caspary

We document the sporophyte of the extinct <i>Frullania varians</i> based on an inclusion in Late Oligocene Bitterfeld amber from Germany. The sporophyte consists of a short, ca. 45 µm thick seta that exceeds the perianth only slightly; the elongate-ovate, acute valves of the opened capsule are about 225 µm long, curved backwards and consist of an epidermal and an internal layer. Cell walls of both layers possess nodulose trigones. Several trumpet-shaped, unispiral elaters are fixed to the upper third of the internal valve layer. They have a length of ca. 150 µm and a diameter of 15–18 µm. A subglobose structure of 19 µm diameter is interpreted as a degraded spore. Fossil elaters and spores as well as capsule wall details of Frullaniaceae are described for the first time. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.201200009" target="_blank">10.1002/mmng.201200009</a

In celebration of Dr. John J. Engel : a tribute to 40 years in bryology /

n.s. no.4