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.     

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...     

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 ...     

Intraspecific floral colour variation in three Pedicularis speciesOA

Flower constancy describes the phenomenon that pollinators tend to successively visit flowers of a single species during foraging, reducing reproductive interference in natural communities. The extent of flower constancy is largely determined by the floral traits of co-flowering species. Both higher inter-specific and lower intraspecific differences of floral traits should contribute to a higher level of flower constancy.However, previous studies mainly focused on interspecific difference, and t...     

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;     

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...     

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...     

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...     

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.     

Global patterns of taxonomic and phylogenetic diversity of flowering plants:Biodiversity hotspots and coldspotsOA

Species diversity of angiosperms(flowering plants) varies greatly among regions.Geographic patterns of variation in species diversity are shaped by the interplay of ecological and evolutionary processes.Here,using a comprehensive data set for regional angiosperm floras across the world,we show geographic patterns of taxonomic(species) diversity,phylogenetic diversity,phylogenetic dispersion,and phylogenetic deviation(i.e.,phylogenetic diversity after accounting for taxonomic diversity) across th...     

pyIFPNI: A package for querying and downloading plant fossil data from the IFPNIOA

<正>The International Fossil Plant Names Index (IFPNI, 2014-onwards)not only serves as an online gateway to the fossil plant name registry for the global scientific community, but also serves as a comprehensive and dynamic archive of fossil plants (Doweld, 2016, 2022).Since its establishment in 2014, the IFPNI has accumulated more than 80,000 entries of fossil plant names, along with information on over 10,000 documents and over 6000 paleobotanists, all supported by exhaustive data, demonst...     

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...     

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...     

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...     

Genetic diversity and inferred ancestry of Asian lotus(Nelumbo nucifera) germplasms in Thailand and VietnamOA

Tropical lotus(Nelumbo) is an important and unique ecological type of lotus germplasm.Understanding the genetic relationship and diversity of the tropical lotus is necessary for its sustainable conservation and utilization.Using 42 EST-SSR(expressed sequence tag-simple sequence repeats) and 30 SRAP(sequence-related amplified polymorphism) markers,we assessed the genetic diversity and inferred the ancestry of representative tropical lotus from Thailand and Vietnam.In total,164 and 41 polymorphic ...     

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...