Results 31 to 40 of about 370 (136)

The long journey of Orthotrichum shevockii (Orthotrichaceae, Bryopsida): From California to Macaronesia [PDF]

open access: yes, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Draper, Isabel   +8 more
core   +3 more sources

Increased diversification rates follow shifts to bisexuality in liverworts [PDF]

open access: yes, 2016
Shifts in sexual systems are one of the key drivers of species diversification. In contrast to angiosperms, unisexuality prevails in bryophytes. Here, we test the hypotheses that bisexuality evolved from an ancestral unisexual condition and is a key ...
A. Jonathan Shaw   +83 more
core   +1 more source

DNA taxonomy, cryptic speciation and diversification of the Neotropical-African liverwort, Marchesinia brachiata (Lejeuneaceae, Porellales)

open access: yesMolecular Phylogenetics and Evolution, 2009
The Neotropical-African liverwort Marchesinia brachiata has long been regarded as a polymorphic species. This hypothesis is examined using a dataset including sequences of the nuclear internal transcribed spacer region and the plastidic trnL-trnF region of 39 Marchesinia accessions.
Heinrichs, Jochen   +3 more
openaire   +3 more sources

Opportunities and challenges presented by cryptic bryophyte species. [PDF]

open access: yes, 2020
Cryptic bryophyte species exhibit a decoupling in the degree of morphological and molecular divergence, as a result of different processes, from recent divergence to stasis.
Renner, Matthew AM
core   +2 more sources

A fossil species ofCeratolejeunea(Lejeuneaceae, Porellales) preserved in Miocene Mexican amber

open access: yesThe Bryologist, 2014
Abstract A sterile liverwort inclusion in a piece of Miocene Mexican amber is described and assigned to the extant genus Ceratolejeunea. The inclusion has entire leaves with a basal group of 2–4(– ca. 7) ocelli, rather thin-walled leaf cells, large ovoid lobules and bifid, suborbicular underleaves.
Heinrichs, Jochen   +5 more
openaire   +2 more sources

A new leafy liverwort of Frullania (Frullaniaceae, Porellales) from the mid‐Cretaceous Kachin amber, Myanmar

open access: yesGeological Journal, 2021
With over 300 extant species, the nearly worldwide‐distributed genus Frullania is one of the most species‐rich genera of leafy liverworts and the sole extant genus of Frullaniaceae. Amber fossil record of Frullania is also rather diverse, with ...
Ya Li   +4 more
openaire   +2 more sources

The extant liverwort Gackstroemia (Lepidolaenaceae, Porellales) in Cretaceous amber from Myanmar

open access: yesReview of Palaeobotany and Palynology, 2014
Abstract We describe a sterile gametophyte fragment of a leafy liverwort preserved in Cretaceous amber from Myanmar, and place it in the extant genus Gackstroemia, as G. cretacea sp. nov., representing the second extant genus of leafy liverworts reported from the Mesozoic.
Heinrichs, Jochen   +3 more
openaire   +2 more sources

Molecular cytogenetics (FISH, GISH) of Coccinia grandis: A ca. 3 myr-old species of Cucurbitaceae with the largest Y/autosome divergence in flowering plants [PDF]

open access: yes, 2013
The independent evolution of heteromorphic sex chromosomes in 19 species from 4 families of flowering plants permits studying X/Y divergence after the initial recombination suppression.
A. Sousa   +67 more
core   +2 more sources

Morphology informed by phylogeny reveals unexpected patterns of species differentiation in the aquatic moss Rhynchostegium riparioides s.l [PDF]

open access: yes, 2012
peer ...
Alain Vanderpoorten   +4 more
core   +1 more source

Notas taxonômicas sobre espécies do gênero Cheilolejeunea (Spruce) Steph. (Lejeuneaceae, Marchantiophyta) descritas por R.M. Schuster para a Jamaica e Venezuela

open access: yesHoehnea
RESUMO Foram estudados espécimes-tipo provenientes da coleção de R.M. Schuster, atualmente depositada no Field Museum (F). São apresentadas descrição completa e ilustração para as espécies descritas por R.M. Schuster para a Jamaica e Venezuela.
Cid José Passos Bastos
doaj   +1 more source

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