cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.30529031
title: Benchmark dataset of "Large-scale urban flood modeling and zero-shot high-resolution generalization with LarNO"

description: This study focuses on the central urban region of Shenzhen, China (approximately 100 km2), where flood risk is high due to dense urbanization and frequent heavy rainfall events. We construct a benchmark dataset comprising large-scale, high-resolution, long-duration spatiotemporal dynamics of urban flood events induced by spatially heterogeneous extreme rainfall.We utilize urban geographic information with a 20-m spatial resolution to support street-level flood modeling. Then we collect 80 observed extreme rainfall events recorded in the study region between 2008 and 2018, which have return periods ranging from 0.1 to 20 years. All events were assigned a 6-hour duration to facilitate training and evaluation. We randomly select multiple rainfall centers to generate spatially heterogeneous extreme rainfalls, which is typical in urban regions spanning 100 square kilometers. One center uses an observed rainfall time series, while the other centers generate new rainfall time series by perturbing the original series with 50% Gaussian noise. For the remaining region, rainfall time series are generated using inverse distance weighting with a 1 km resolution. <br>To simulate urban flooding, we use MIKE Plus Version 2023, employing a 1D-2D coupled scheme to model the drainage system and surface runoff. Urban infrastructure, such as pipe diameters and drainage inlet configurations, is simplified based on available city planning data, retaining only the main pipes and nodes. We raise the terrain values at building locations by 100 m to simulate the impact of buildings on surface runoff and flood propagation. The model time step is adjustable between 0.01 s and 1 s to maintain numerical stability. We simulate 6-hour spatiotemporal water depth at a 5-minute frequency. We construct a benchmark dataset for urban flooding, comprising 80 events with spatial dimensions of 1,600 × 2,240 and a temporal dimension of 72. These events are randomly divided into a 4:1 training and testing set to evaluate the performance of neural operators on unseen events.
DOI: 10.6084/m9.figshare.30529031.v1
title: Benchmark dataset of "Large-scale urban flood modeling and zero-shot high-resolution generalization with LarNO"

description: This study focuses on the central urban region of Shenzhen, China (approximately 100 km2), where flood risk is high due to dense urbanization and frequent heavy rainfall events. We construct a benchmark dataset comprising large-scale, high-resolution, long-duration spatiotemporal dynamics of urban flood events induced by spatially heterogeneous extreme rainfall.We utilize urban geographic information with a 20-m spatial resolution to support street-level flood modeling. Then we collect 80 observed extreme rainfall events recorded in the study region between 2008 and 2018, which have return periods ranging from 0.1 to 20 years. All events were assigned a 6-hour duration to facilitate training and evaluation. We randomly select multiple rainfall centers to generate spatially heterogeneous extreme rainfalls, which is typical in urban regions spanning 100 square kilometers. One center uses an observed rainfall time series, while the other centers generate new rainfall time series by perturbing the original series with 50% Gaussian noise. For the remaining region, rainfall time series are generated using inverse distance weighting with a 1 km resolution. <br>To simulate urban flooding, we use MIKE Plus Version 2023, employing a 1D-2D coupled scheme to model the drainage system and surface runoff. Urban infrastructure, such as pipe diameters and drainage inlet configurations, is simplified based on available city planning data, retaining only the main pipes and nodes. We raise the terrain values at building locations by 100 m to simulate the impact of buildings on surface runoff and flood propagation. The model time step is adjustable between 0.01 s and 1 s to maintain numerical stability. We simulate 6-hour spatiotemporal water depth at a 5-minute frequency. We construct a benchmark dataset for urban flooding, comprising 80 events with spatial dimensions of 1,600 × 2,240 and a temporal dimension of 72. These events are randomly divided into a 4:1 training and testing set to evaluate the performance of neural operators on unseen events.
DOI: 10.6084/m9.figshare.30529031.v2
title: Benchmark dataset of "Large-scale urban flood modeling and zero-shot high-resolution generalization with LarNO"

description: This study focuses on the central urban region of Shenzhen, China (approximately 100 km2), where flood risk is high due to dense urbanization and frequent heavy rainfall events. We construct a benchmark dataset comprising large-scale, high-resolution, long-duration spatiotemporal dynamics of urban flood events induced by spatially heterogeneous extreme rainfall.We utilize urban geographic information with a 20-m spatial resolution to support street-level flood modeling. Then we collect 80 observed extreme rainfall events recorded in the study region between 2008 and 2018, which have return periods ranging from 0.1 to 20 years. All events were assigned a 6-hour duration to facilitate training and evaluation. We randomly select multiple rainfall centers to generate spatially heterogeneous extreme rainfalls, which is typical in urban regions spanning 100 square kilometers. One center uses an observed rainfall time series, while the other centers generate new rainfall time series by perturbing the original series with 50% Gaussian noise. For the remaining region, rainfall time series are generated using inverse distance weighting with a 1 km resolution. <br>To simulate urban flooding, we use MIKE Plus Version 2023, employing a 1D-2D coupled scheme to model the drainage system and surface runoff. Urban infrastructure, such as pipe diameters and drainage inlet configurations, is simplified based on available city planning data, retaining only the main pipes and nodes. We raise the terrain values at building locations by 100 m to simulate the impact of buildings on surface runoff and flood propagation. The model time step is adjustable between 0.01 s and 1 s to maintain numerical stability. We simulate 6-hour spatiotemporal water depth at a 5-minute frequency. We construct a benchmark dataset for urban flooding, comprising 80 events with spatial dimensions of 1,600 × 2,240 and a temporal dimension of 72. These events are randomly divided into a 4:1 training and testing set to evaluate the performance of neural operators on unseen events.
DOI: 10.15468/dl.6x6kkh
title: Occurrence Download

description: A dataset containing 456336 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Artportalen",
 "Geometry POLYGON((11.85112 57.75398,12.33928 57.75398,12.33928 58.03864,11.85112 58.03864,11.85112 57.75398))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "IucnRedListCategory is one of (DD, LC, NT, VU, EN, CR)",
 "OccurrenceStatus is Present",
 "Year 2015-2025"
 ]
}

 The dataset includes 456336 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014560-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.7910/dvn/zmxner
title: Replication Data for: Gauging Preference Stability under Authoritarianism

description: Do people living under authoritarianism exhibit stable, constrained preferences? Autocrats have incentives to suppress the formation of stable preferences structured by underlying constraints as such preferences can empower challengers and limit policy choices. However, research in political psychology suggest that such preferences may emerge through internal cognitive processes regardless of external conditions. We address this question by conducting three surveys, including two longitudinal studies, in China, a theoretically important case. We find that preferences related to political institutions, economic policies, nationalistic policies, traditional social values, and ethnic policies exhibit relatively high levels of intertemporal stability over month-long and year-long periods, comparable to patterns observed in competitive electoral democracies. Moreover, individuals with higher levels of political knowledge and education exhibit more stable preferences. These findings suggest that, despite autocratic efforts to suppress stable and constrained preferences, such preferences can still take shape. We also offer practical recommendations for measuring preference configuration in authoritarian contexts.
DOI: 10.5519/qd.wbr9qg88
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (1 records)
DOI: 10.5281/zenodo.17519963
title: Immune control of functional memory CD8 T cells in normal-appearing vitiligo skin

description: Raw data from the study Immune control of functional memory CD8 T cells in normal-appearing vitiligo skin
DOI: 10.5281/zenodo.17519964
title: Immune control of functional memory CD8 T cells in normal-appearing vitiligo skin

description: Raw data from the study Immune control of functional memory CD8 T cells in normal-appearing vitiligo skin
DOI: 10.21227/yyby-w738
title: "Dataset for RoMTS"

description: "Datasets for RoMTS"
DOI: 10.15468/dl.ydx7t4
title: Occurrence Download

description: A dataset containing 2173 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Acacia pennatula)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 2173 records from 107 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002112-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48580/d84tz
title: A broadly sampled 3 - loci plastid phylogeny of Atraphaxis (Polygoneae, Polygonoideae, Polygonaceae) reveals new taxa: III. A. kuvaevii and сryptic species in A. pungens from Southern Siberia and Northern Mongolia
DOI: 10.48580/d84v2
title: Tulipa toktogulica (Liliaceae), a cryptic, endangered new species from the western Tien-Shan, Kyrgyzstan
DOI: 10.48580/d8543
title: A new species of Racelda Signoret, with taxonomical notes and a key to the males of the genus (Hemiptera, Reduviidae, Ectrichodiinae, Ectrichodiini)
DOI: 10.48580/d8544
title: New and interesting records of marine fishes (Actinopterygii) from the Maltese Islands (central Mediterranean)
DOI: 10.48580/d8545
title: Three new deep-sea species of Marphysa (Annelida, Eunicida, Eunicidae) from Papua New Guinea (Bismarck and Solomon seas)
DOI: 10.48580/d8546
title: A revision of Lycianthes (Solanaceae) in Australia, New Guinea, and the Pacific
DOI: 10.48580/d8547
title: First report of abnormal body coloration in Sebastes koreanus (Actinopterygii: Perciformes: Sebastinae)
DOI: 10.48580/d8548
title: New finding and description of the Galapagos batfish, Ogcocephalus darwini (Actinopterygii: Lophiiformes: Ogcocephalidae), in marine waters of Manabi, Ecuador
DOI: 10.48580/d8549
title: Red List of Polish Fungi 2006 (non-lichenized)
DOI: 10.48580/d854b
title: A new species of the aphid genus Uroleucon Mordvilko, 1914 (Hemiptera Sternorrhyncha: Aphididae) on Launaea acanthodes from Iran
DOI: 10.48580/d854c
title: Description of three new species of the genus Cicurina Menge, 1871 from Guangdong, China (Araneae, Hahniidae)
DOI: 10.48580/d854d
title: List of Protected Fungi in Poland
DOI: 10.48580/d854f
title: A Georgian and an Iranian new species of Renea G. Nevill, 1880 enormously extend the genus’s distribution (Gastropoda: Caenogastropoda: Aciculidae)
DOI: 10.48580/d854g
title: A new species of Zaglyptogastra Ashmead (Hymenoptera: Braconidae: Braconinae) from Thailand
DOI: 10.48580/d854h
title: Two new water mite species of the genus Atractides Koch (Acari, Hydrachnidia, Hygrobatidae) from Asia
DOI: 10.48580/d854j
title: Nomenclature notes on two names in Allium (Amaryllidaceae)
DOI: 10.48580/d872k
title: A Checklist of Ornamental plants in the Lagos State Parks and Gardens Agency, Lagos, Nigeria
DOI: 10.48580/d87zl
title: Colletotrichum chinense sp. nov. from Yucca gloriosa and C. quercicola sp. nov. from Quercus variabilis in China
DOI: 10.48580/d87zm
title: Revision of the Tetragona clavipes (Fabricius, 1804) species-group (Hymenoptera: Apidae: Meliponini)
DOI: 10.48580/d88hn
title: A Checklist of Plants in the College of Medicine Herbarium, University of Lagos, Lagos, Nigeria
DOI: 10.48580/d88yp
title: Sinosenecio yangii (Asteraceae), a new species from Guizhou, China
DOI: 10.48580/d88yq
title: Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China
DOI: 10.48580/d88yr
title: Integrating morphology and DNA barcodes for identification of Delia sanctijacobi Bigot 1885 (Diptera: Anthomyiidae): new host and new records in South America
DOI: 10.48580/d88ys
title: A review of the genus Leiurus Ehrenberg, 1828 (Scorpiones: Buthidae) with description of four new species from the Arabian Peninsula
DOI: 10.48580/d88yt
title: Revision of the genus Dicranopalpus from northern Spain and Corsica, with descriptions of two new species (Arachnida, Opiliones, Phalangioidea)
DOI: 10.48580/d89gv
title: two_new_species_of_boesenbergia_zingiberaceae_from_sabah_malaysia
DOI: 10.48580/d89pw
title: Description of Maghreboniscus rojasi sp. nov. from Southern Spain and validation of the genus by the designation of a type species (Isopoda: Oniscidea: Spelaeoniscidae)
DOI: 10.48580/d89px
title: Taxonomic revision of Zingiber (Zingiberaceae) of Taiwan
DOI: 10.48580/d89py
title: A new wriggler of Eleotrid (Teleostei: Xenisthmidae) from Taiwan
DOI: 10.48580/d89pz
title: Hemimyzon yushanensis, a new species of balitorid fish (Teleostei: Baltiordae) from southern Taiwan
DOI: 10.48580/d89q2
title: New records of spongicolid shrimps (Crustacea, Decapoda, Stenopodidea) from Taiwan
DOI: 10.48580/d89q3
title: Additional description on morphology of the Misol snake eel from Taiwan, with four verified barcodes of life sequences
DOI: 10.48580/d89q4
title: Kalanchoe gideonsmithii (K. subg. Kalanchoe; Crassulaceae subfam. Kalanchooideae), a further new species endemic to the Maputaland-Pondoland Region of Endemism in KwaZulu-Natal, eastern South Africa
DOI: 10.48580/d89q5
title: The genera Butheolus Simon, 1882 and Xenobuthus gen. nov. (Scorpiones: Buthidae) in Oman
DOI: 10.48580/d8bp6
title: The new combination Tectaria colaniae and notes on the synonymy and distribution of Tectaria wigmanii (Tectariaceae)
DOI: 10.48580/d8bp7
title: Four new species of the frogmouth genus Chaunax (Lophiiformes: Chaunacidae) from Taiwan and the Philippines
DOI: 10.48580/d8bp8
title: Redescription of the longnose houndshark Iago garricki (Carcharhiniformes Triakidae), based on specimens recently collected from the South China Sea
DOI: 10.48580/d8bp9
title: A new species of gobiid fish Lentipes niasensis (Gobiidae: Sicydiinae) from Nias Island, Indonesia
DOI: 10.48580/d8bpb
title: A new freshwater goby, Rhinogobius lianchengensis (Teleostei: Gobiidae) from the Minjiang river basin, Fujian Province, China
DOI: 10.48580/d8bpc
title: A new freshwater gobiid species of Rhinogobius Gill, 1859 (Teleostei: Gobiidae) from northern Taiwan
DOI: 10.48580/d8bpd
title: Redescription of Lophiodes lugubris (Alcock, 1894), with the largest record of Lophiodes triradiatus (Lloyd, 1909) from the South China Sea (Lophiiformes Lophiidae)
DOI: 10.5281/zenodo.18664482
title: PRINCIPLES OF DATA PROTECTION, AI-GUIDED COMMUNICATION SYSTEMS, AND PROJECT MANAGEMENT PROCESSES

description: This article comprehensively examines the legal, organizational, and technical principles of data protection, the fundamentals of satellite communication systems, and the main stages of project management. Special attention is given to the concept and initiation phases of projects, as well as the use of modern project management software.
DOI: 10.48580/d8bpf
title: First adult record, redescription and distribution of Stemonosudis elongata (Aulopiformes: Paralepididae)
DOI: 10.48580/d8bpg
title: Owstonia aurora (Perciformes: Cepolidae: Owstoniinae), a new bandfish from the Philippines
DOI: 10.48580/d8bph
title: A new freshwater goby of Rhinogobius lingtongyanensis (Teleostei, Gobiidae) from the Dongshi river basin, Fujian Province, southeastern China
DOI: 10.48580/d8bpj
title: Two new species of the snake eel genus Bascanichthys (Anguilliformes: Ophichthidae) from the northwestern Pacific
DOI: 10.48580/d8bpk
title: A new species of the congrid eel genus Bathycongrus (Order Anguilliformes) from eastern Taiwan
DOI: 10.5281/zenodo.18664481
title: PRINCIPLES OF DATA PROTECTION, AI-GUIDED COMMUNICATION SYSTEMS, AND PROJECT MANAGEMENT PROCESSES

description: This article comprehensively examines the legal, organizational, and technical principles of data protection, the fundamentals of satellite communication systems, and the main stages of project management. Special attention is given to the concept and initiation phases of projects, as well as the use of modern project management software.
DOI: 10.48580/d8bpl
title: Scorpions of Sri Lanka (Scorpiones Buthidae, Chaerilidae, Scorpionidae) with description of four new species of the genera Charmus Karsch, 1879 and Reddyanus Vachon, 1972, stat n
DOI: 10.48580/d8bpm
title: Taxonomic study on the genus Xenicotela Bates from China (Cerambycidae, Lamiinae, Lamiini)
DOI: 10.48580/d8bpn
title: Three new fold-winged crane flies of the genus Ptychoptera Meigen, 1803 (Diptera, Ptychopteridae) from southern China
DOI: 10.48580/d8bpp
title: A new marine epipsammic diatom species, Ambo dajingensis sp. nov. (Bacillariophyceae), from the coast of Southeast China
DOI: 10.48580/d8bpq
title: Monopyle glutinosa (Gesneriaceae), a new species from the western slopes of the Ecuadorian Andes
DOI: 10.48580/d8bpr
title: A new species of the genus Leptobrachella (Anura, Megophryidae) from northwestern Guangdong Province, China
DOI: 10.48580/d8bps
title: Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a total-evidence phylogeny of Scytodoidea reveal the first fossil Drymusidae
DOI: 10.48580/d8bxt
title: Gobies (Teleostei: Gobiidae) of the oldest and deepest Caspian Sea sub-basin: an evidence-based annotated checklist and a key for species identification
DOI: 10.48580/d8bxv
title: Juncus tweedyi (Juncaceae sect. Ozophyllum), the correct name for Juncus brevicaudatus
DOI: 10.48580/d8bxw
title: A new species, Bulbophyllum phanquyetii and a new national record of B. tianguii (Orchidaceae) from the limestone area of northern Vietnam
DOI: 10.48580/d8bxx
title: Gastrochilus xizangensis (Aeridinae, Vandeae, Orchidaceae), a new species from Xizang, China
DOI: 10.48580/d8bxy
title: Nomenclatural notes and rediscovery of Viola cinerea var. stocksii (Violaceae) from Chambal ravines of Madhya Pradesh, India
DOI: 10.48580/d8bxz
title: The Lichen Flora on Quercus in the Tamentout Forest of Algeria
DOI: 10.48580/d8by2
title: Two new species of the genus Comibaena Hübner, 1823 (Lepidoptera: Geometridae) from China
DOI: 10.48580/d8by3
title: Cortiella yatungense, a new species of Cortiella (Apiaceae) from Xizang, China
DOI: 10.48580/d8by4
title: A new species of Desmacella Schmidt, 1870 (Porifera, Demospongiae, Desmacellidae) from the Northeast region of Brazil
DOI: 10.48580/d8by5
title: A commentary on the status of Scirtes brevenotatus v. mediolineatus Pic, 1928 from Argentina (Coleoptera: Scirtidae)
DOI: 10.48580/d8by6
title: On the female gonocoxites of Asian, Arabian, and African Clivinini with realignment of the Thliboclivina-, Physoclivina-, and Eoclivina-species groups, and notes on the higher systematics of the tribe Clivinini Rafinesque, 1815 (Coleoptera, Carabidae)
DOI: 10.48580/d8by7
title: Two new endemic species, Peucedanum miroense and P. tongkangense (Apiaceae), from Korea
DOI: 10.48580/d8by8
title: A Neotropical complex of Ripersiella species (Hemiptera, Coccomorpha, Rhizoecidae) collected from the nests of Acropyga ants (Hymenoptera, Formicidae)
DOI: 10.48580/d8by9
title: Smithia yehii (Leguminosae, Papilionoideae), a new species from Taiwan
DOI: 10.48580/d8byb
title: Inocybe vaurasii (Agaricales, Inocybaceae), a new species of the I. xanthomelas group and similar European species with asteriform spores
DOI: 10.48580/d8byc
title: Two new genera and six new species of Terrestrial Hydrometridae (Hemiptera: Heteroptera) from French Polynesia
DOI: 10.48580/d8byd
title: An illustrated checklist of Stratiomyidae (Diptera: Brachycera) from Paraguay with three new synonyms and 22 new records of species for the country
DOI: 10.48580/d8byf
title: Two new species and four new records of the Sarsia tubulosa group of Sarsia (Cnidaria, Corynidae) from the Bohai Sea of China
DOI: 10.48580/d8byg
title: Engyprosopon keliaoense, a new lefteye flounder (Teleostei: Bothidae) from Taiwan
DOI: 10.48580/d8byh
title: Redescription of Chelidoperca barazeri, with a revised key and literature review to species of Chelidoperca in Taiwan (Perciformes: Serranidae)
DOI: 10.48580/d8byj
title: New varieties and synonyms of Lupinus species (Fabaceae, Faboideae) of Northwestern Argentina
DOI: 10.48580/d8byk
title: Wolfeniana, a new replacement name for fossil Pteridophyte genus Gillespiea Erwin & Rothwell (Stauropteridales)
DOI: 10.48580/d8byl
title: A new cryptic species of the pineapple fish genus Monocentris (Family Monocentridae) from the western Pacific Ocean, with redescription of M. japonica (Houttuyn, 1782)
DOI: 10.48580/d8cpm
title: Statut acoustique et comportement sonore de quelques Cigales thaïlandaises. Description d'une espèce nouvelle (Homoptera, Cicadidae)
DOI: 10.48580/d8cpn
title: Studies on Neotropical Pseudophyllinae: A new, short-winged Platyphyllini genus (Orthoptera: Tettigoniidae) from a High Andean Forest in Colombia
DOI: 10.48580/d8cpp
title: Two new synonyms among Panchaetothripinae (Thysanoptera: Thripidae) with three species newly recorded from China
DOI: 10.48580/d8cpq
title: Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini)
DOI: 10.48580/d8cpr
title: Taxonomic review of the Agrisius guttivitta Walker species group with transfer of the genus Agrisius Walker to the family Nolidae Bruand and descriptions of five new species (Lepidoptera: Nolidae: Eligminae)
DOI: 10.48580/d8cps
title: Systematics of the Ocoee Salamander (Plethodontidae: Desmognathus ocoee), with description of two new species from the southern Blue Ridge Mountains
DOI: 10.48580/d8cpt
title: Pentastira eminei sp. nov. (Hemiptera, Fulgoromorpha, Cixiidae) from Türkiye and notes on other Pentastira spp. in Türkiye and the Middle East
DOI: 10.48580/d8cxv
title: Lignicolous freshwater ascomycetes from Thailand: Introducing Dematipyriforma muriformis sp. nov., one new combination and two new records in Pleurotheciaceae
DOI: 10.48580/d8cxw
title: New species of awl-head katydids, Cestrophorus and Acanthacara, from the Andes of Ecuador (Orthoptera, Conocephalinae, Cestrophorini)
DOI: 10.48580/d8cxx
title: A new species of Tharybis (Crustacea: Copepoda: Calanoida: Tharybidae) from northern Taiwan
DOI: 10.48580/d8cxy
title: A new species of deep-water tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus) from the western North Pacific Ocean
DOI: 10.48580/d8cxz
title: Gymnothorax poikilospilus, a new moray eel (Teleostei: Anguilliformes: Muraenidae) from Penghu Islands, western Taiwan
DOI: 10.48580/d8g53
title: Family Liliaceae Juss. of Altai Mountain Country
DOI: 10.48580/d8g56
title: Food plants of Altai Mountain Country
DOI: 10.48580/d8gd5
title: Listado de especies de plantas usadas por la avifauna en sitios priorizados de la ciudad de Barranquilla
DOI: 10.48580/d8gd6
title: A New Species of Eutrepsia Herrich-Schäffer from Mexico (Lepidoptera: Geometridae: Larentiinae)
DOI: 10.48580/d8gd7
title: Contribution to the knowledge of Chinese Gryllacrididae (Orthoptera) X: One new species of Capnogryllacris from Yunnan Province
DOI: 10.48580/d8gd8
title: Polystichum suiyangense (sect. Sphaenopolystichum, Dryopteridaceae), a new fern from Guizhou, China