GUIDE FOR AUTHORSOA

<正>Introduction Types of paper Contributions falling into the following categories will be considered for publication:original articles,review articles,short letters,modelling/theory and methods articles,rapid reports and special thematic issues.Please ensure that you select the appropriate article type from the list of options when making your submission.Authors contributing to special issues should ensure that they select the special issue article type from this list.     

GUIDE FOR AUTHORSOA

<正>Introduction Types of paper Contributions falling into the following categories will be considered for publication:original articles,review articles,short letters,modelling/theory and methods articles,rapid reports and special thematic issues.Please ensure that you select the appropriate article type from the list of options when making your submission.Authors contributing to special issues should ensure that they select the special issue article type from this list.     

GUIDE FOR AUTHORSOA

<正>Introduction Types of paper Contributions falling into the following categories will be considered for publication:original articles,review articles,short letters,modelling/theory and methods articles,rapid reports and special thematic issues.Please ensure that you select the appropriate article type from the list of options when making your submission.Authors contributing to special issues should ensure that they select the special issue article type from this list.     

GUIDE FOR AUTHORSOA

<正>Introduction Types of paper Contributions falling into the following categories will be considered for publication:original articles,review articles,short letters,modelling/theory and methods articles,rapid reports and special thematic issues.Please ensure that you select the appropriate article type from the list of options when making your submission.Authors contributing to special issues should ensure that they select the special issue article type from this list.     

Insights into cryptic speciation of quillworts in ChinaOA

Cryptic species are commonly misidentified because of high morphological similarities to other species.One group of plants that may harbor large numbers of cryptic species is the quillworts(Iso?tes spp.),an ancient aquatic plant lineage.Although over 350 species of Iso?tes have been reported globally,only ten species have been recorded in China.The aim of this study is to better understand Iso?tes species diversity in China.For this purpose,we systematically explored the phylogeny and evolution ...     

Distribution and conservation of near threatened plants in ChinaOA

Plants classified as Near Threatened(NT) are at high risk of becoming threatened because of anthropogenic interference and climate change.Especially in conservation efforts,such species have however long been overlooked.Here,we obtained 98,419 precise occurrence points for 2442 NT plants in China,and used species richness,species complementarity,and weighted endemism that consider all,endemic and narrow-ranged species in order to identify the diversity hotspots of NT plants.Then we evaluated the...     

Phyllosphere eukaryotic microalgal communities in rainforests:Drivers and diversityOA

Phyllosphere algae are common in tropical rainforests,forming visible biofilms or spots on plant leaf surfaces.However,knowledge of phyllosphere algal diversity and the environmental factors that drive that diversity is limited.The aim of this study is to identify the environmental factors that drive phyllosphere algal community composition and diversity in rainforests.For this purpose,we used single molecule real-time sequencing of full-length 18S rDNA to characterize the composition of phyllos...     

Siwalik plant megafossil diversity in the Eastern Himalayas:A reviewOA

The Eastern Himalayas are renowned for their high plant diversity.To understand how this modern botanical richness formed,it is critical to investigate past plant biodiversity preserved as fossils throughout the eastern Himalayan Siwalik succession(middle Miocene-early Pleistocene).Here,we present a summary of plant diversity records that document Neogene floristic and climate changes.We do this by compiling published records of megafossil plant remains,because these offer better spatial and tem...     

Applying image clustering to phylogenetic analysis:A trialOA

<正>Phylogenetic studies have increased in recent years,largely due to rapid developments in sequencing techniques (Tucker et al.,2017).However,molecular phylogenetic studies rely on collecting biomaterials,which limits their applicability to many,especially small,rare plants,or inaccessible plants.Recently,image classification using supervised or semi-supervised approaches (Dyrmann et al.,2016;W?ldchen et al., 2018;Draper et al.,2020;     

Does pollinator dependence decrease along elevational gradients?OA

Plants have long been thought to be less dependent on pollinators for seed production at higher elevations due to adverse pollination environments.However,recent research has yet to consistently support the generality of this expectation.In this study,we asked whether pollinator dependence decreases along an elevational gradient and how it varies with various reproductive traits.To answer these questions,we quantified pollinator-plant associations and various reproductive traits for 112 flowerin...     

Patterns of phylogenetic relatedness of non-native plants across the introduction-naturalization-invasion continuum in ChinaOA

Human activities have caused the exchange of species among different parts of the world.When introduced species become naturalized and invasive,they may cause great negative impacts on the environment and human societies,and pose significant threats to biodiversity and ecosystem structure.Knowledge on phylogenetic relatedness between native and non-native species and among non-native species at different stages of species invasion may help for better understanding the drivers of species invasion...     

Geographic patterns of taxonomic and phylogenetic β-diversity of aquatic angiosperms in ChinaOA

China covers a vast territory harbouring a large number of aquatic plants.Although there are many studies on the β-diversity of total,herbaceous or woody plants in China and elsewhere,few studies have focused on aquatic plants.Here,we analyse a comprehensive data set of 889 aquatic angiosperm species in China,and explore the geographic patterns and climatic correlates of total taxonomic and phylogeneticβ-diversity as well as their turnover and nestedness components.Our results show that geograph...     

Taxonomic synopsis of Berberis(Berberidaceae)from the northern Hengduan mountains region in China,with descriptions of seven new speciesOA

Though Berberis(Berberidaceae) is widely distributed across the Eurasian landmass it is most diverse in the Himalaya-Hengduan Mountain(HHM) region.There are more than 200 species in China where it is one of the most common mountain shrubs.The study on the taxonomy and evolution of Berberis in this region can thus provide an important insight into the origin and diversification of its flora.A prerequisite to this is mapping and describing the various species of Berberis in the region-a task that ...     

Reproductive height determines the loss of clonal grasses with nitrogen enrichment in a temperate grasslandOA

Tall clonal grasses commonly display competitive advantages with nitrogen(N) enrichment. However, it is currently unknown whether the height is derived from the vegetative or reproductive module.Moreover, it is unclear whether the height of the vegetative or reproductive system regulates the probability of extinction and colonization, and determines species diversity. In this study, the impacts on clonal grasses were studied in a field experiment employing two frequencies(twice a year vs. monthl...     

Are allometric model parameters of aboveground biomass for trees phylogenetically constrained?OA

Knowledge of which biological and functional traits have,or lack,phylogenetic signal in a particular group of organisms is important to understanding the formation and functioning of biological communities.Allometric biomass models reflecting tree growth characteristics are commonly used to predict forest biomass.However,few studies have examined whether model parameters are constrained by phylogeny.Here,we use a comprehensive database(including 276 tree species) compiled from 894 allometric bio...     

Honoring a legend:Celebrating the life and legacy of Professor Heng LiOA

<正>Professor Heng Li (李恒,March 9,1929-January 12,2023) was a legendary plant taxonomist and phytogeographer at the Kunming Institute of Botany,Chinese Academy of Sciences (Fig.1).She made important contributions to our understanding of China’s flora,including the biodiversity and biogeography of Dulong Valley and the Gaoligong Mountains,as well as the vegetation of plateau lakes and wetlands in Southwest China.     

Plastid phylogenomics and species discrimination in the "Chinese" clade of Roscoea(Zingiberaceae)OA

Roscoea is an alpine or subalpine genus from the pan-tropical family Zingiberaceae,which consists of two disjunct groups in geography,namely the "Chinese" clade and the "Himalayan" clade.Despite extensive research on the genus,Roscoea species remain poorly defined and relationships between these species are not well resolved.In this study,we used plastid genomes of nine species and one variety to resolve phylogenetic relationships within the "Chinese" clade of Roscoea and as DNA super barcodes f...     

The identity of Dinochloa species and enumeration of Melocalamus(Poaceae:Bambusoideae) in ChinaOA

Three woody bamboo species collected in Hainan,China in 1940 have been described as Dinochloa based on vegetative specimens.However,the identity of these species has long been in doubt,largely because the vegetative phase in species of Dinochloa is morphologically similar to that in species of Melocalamus,a climbing or scrambling bamboo genus of the paleotropical woody bamboos(Poaceae:Bambusoideae)that consists of about 15 species and one variety.To determine the phylogenetic affinity of the thr...     

Leaf hydraulics coordinated with leaf economics and leaf size in mangrove species along a salinity gradientOA

Independence among leaf economics,leaf hydraulics and leaf size confers plants great capability in adapting to heterogeneous environments.However,it remains unclear whether the independence of the leaf traits revealed across species still holds within species,especially under stressed conditions.Here,a suite of traits in these dimensions were measured in leaves and roots of a typical mangrove species,Ceriops tagal,which grows in habitats with a similar sunny and hot environment but different soi...