Showing papers in "Botanical Journal of the Linnean Society in 2020"

TL;DR: Knowing the impact of idiosyncratic individual plant behaviour on population dynamics will improve demographic parameter estimation, including population growth rate and net reproductive rate, and help underpin effective management for conservation.

TL;DR: A phylogenetic tree of Carex is presented based on hundreds of loci, demonstrating that there are six strongly supported main lineages in Carex: the Siderostictae, Schoenoxiphium, Unispicate, Uncinia, Vignea and Core Carex clades and a revised subgeneric treatment is suggested.

TL;DR: The study revealed the existence of 99 nickel hyperaccumulator taxa, 74 manganesehyperaccumulators, eight cobaltHyperaccumulationTaxa, four cobalt hyper Accumulator Taxa, and four zinc hyperaccUMulatorTaxa not known previously and offers new insights into the phylogenetic diversity of hyperAccumulators in New Caledonia.

TL;DR: Improved representation of the flora of these sites is provided, with more insight into the relationship between the Amazonian savanna sites and other vegetation types, and it is worrying that recent changes of the Brazilian legislation place open environments, such as PEMA, in the path of vulnerability to disturbance and destruction.

TL;DR: Knowledge of the deep PACMAD topology explicitly impacts the understanding of the radiation ofPACMAD grasses into open habitats, and the fact that the aristidoid sister hypothesis was retrieved largely when gapped positions were included suggests that this result might be artefactual.

TL;DR: It is proposed that there are four main types of mechanisms that may increase diversification rates of hummingbird-pollinated bromeliad clades and that much additional research is needed to elucidate their contribution to the evolution of diversity inbromeliads and other plant families.

TL;DR: The main morphological, cytological and physiological characters of ripe pollen are described, compared, analysed and discussed individually, in multiple combinations and in respect to the female counterpart and the biotic and abiotic components of the environment.

TL;DR: This investigation investigates the phylogenetic relationships of 41 species (and one variety) of Thismia from the Old World and provides a phylogenetic basis for the development of a novel sectional classification of thismia reflecting morphological and geographical traits.

TL;DR: It is proposed that the retreat of the palms may have occurred as early as the Eocene – Oligocene Transition (EOT), but this remains to be confirmed by the study of EOT pollen records in tropical regions.

TL;DR: A phylogenetic analysis of core Tillandsioideae using the nuclear gene phyC and plastid data obtained from genome skimming revealed that Vriesea s.s. forms a well-supported clade encompassing most of the species of the genus.

TL;DR: A phylogenetic analysis based on ITS and psbA-trnH sequences of 168 Lauraceae species, including 151 taxa from the Ocotea complex, shows that the Old World species belong to two well-supported and morphologically distinguishable clades, one of which is placed unresolved among the Neotropical clades of the Odyssey complex.

TL;DR: The reduced flowers of Cannabaceae are the result of the absence from inception and/or abortion of organs and even of a whole whorl at different developmental stages, which were probably selected in response to pressures exerted by the similar pollination mechanism.

TL;DR: The hypothesis of a single origin of highly specialized (elaborate) nectariferous petals in Ranunculaceae is supported using ancestral state reconstruction methods that take into account various sources of uncertainty and a consensus phylogenetic framework representing all families in the order.

TL;DR: Initial results portray Nicotiana section Suaveolentes as experiencing recent and ongoing radiation in the arid zone of Australia, with strong morphological differentiation between most of the core Australian taxa and obvious differences in ecological preferences.

TL;DR: The model suggests that the domestication of Phoenix dactylifera occurred mainly east of 30°E, probably in the Jordan Valley area, starting before 7 kya and, in a westward shift, that this was gradually superposed onto pre-existing local western populations of the same genus, especially in the Nile valley.

TL;DR: The gathering and storage of high-resolution images, combined with the processing power of desktop computers, makes morphometric approaches practical as a time- and cost-efficient way of non-destructive identification of plant samples.

TL;DR: The leaf epidermal surfaces of 52 species of herbaceous bamboos belonging to all 20 genera of subtribe Olyrinae (Olyreae) were analysed and it was confirmed that in some species, papillae associated with the stomata are on the long cells and project over theStomatal complexes, whereas in other species they occur on the subsidiary cells.

TL;DR: This study investigated fungal-algal association patterns in Icelandic cetrarioid lichens using a multi-locus phylogenetic framework, including fungal nrITS, MCM7, mtSSU, RPB1 and RPB2 and algal n rITS, nrLSU, rbcL and mtCOXII data and found a new Trebouxia lineage supported by maximum likelihood and Bayesian phylogenetic analyses.

TL;DR: Significant intraspecific floral trait variation in Typhonium brownii is characterized, indicating the existence of a species complex, despite the taxa trapping similar Coleoptera (Staphylinidae, Scarabaeidae).

TL;DR: Findings from a detailed study of butterfly-wing pollination in two subspecies of Scadoxus multiflorus are reported and it is predicted that butterfly-Wing pollination occurs in at least nine species of South African Amaryllidaceae, which may reflect several independent origins of this mechanism.

TL;DR: Nectary morphoanatomy, nectar traits and an energy-saving mechanism through nectar reabsorption contribute to the well-established relationship between B. distachia and P. eurynome.

TL;DR: This research documents changes in sequence composition and structure that occurred as these plants evolved along the trophic spectrum by using multiple whole-plastome assemblies from each of the four subgenera of Cuscuta, and ‘triangulating’ the positions of genomic changes.

TL;DR: The morphological diversity has led us to reinterpret Pulvigera, and to amend its description, and the sources of evidence suggest the existence of four different taxa in North America, one also present on the Marquesas Islands.

TL;DR: It is concluded that CAM is the major pathway of carbon acquisition in a small but broadly distributed fraction of tropical orchids and is more prevalent at lower elevations.

TL;DR: Based on phylogenetic and morphological evidence, Parodiolyra is recircumscribe, transferring P. micrantha and P. colombiensis to the new genus Taquara (described here).

TL;DR: The combination of self-compatibility and strong post-pollination, pre-fertilization reproductive barriers is consistent with the involvement of breeding system reproductive barriers in allowing closely related bromeliad species to occur in sympatry.

TL;DR: Heterodichogamy and similar patterns of synchronization are scattered across angiosperms; however, they are especially common in the Magnoliales, Laurales, Canellales, Zingiberales, Ranunculales, Trochodendrales, Fagales, Rosales, Malpighiale, Malvales, Sapindales, Caryophyllales and Apiales.

TL;DR: It is demonstrated that petals are basically absent and that there is a possible shift of pollination mechanisms in Sanguisorba among the mainly wind-pollinated Sangu isorbinae, as both anemophilous and entomophILous characters are found in this genus.

TL;DR: For each family studied, there was only one type of association between gland and tooth, demonstrating the systematic potential of these glands in eudicots.