Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
1,153
datasets available to search
ShareScore release 0.9.0
Dataset results
1,153 results for “Fern”
FIGURES 3–7 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 3–7. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. longzhouensis (2n = 60). 3-6: individuals collected in DX (wah2020060616); 7: individuals collected in DB (wah2020060618).
FIGURE 13 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 13. Strict consensus tree of six maximally parsimonious trees for series Gravesiana obtained from atpA, atpB, rbcL, trnL- F, rps4-trnS and matK sequences in Wang et al. 2017. The bootstrap values were shown above the lines, and the Bayesian posterior probabilities were shown below the lines.
FIGURE 11 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURE 11. Photomicrographs and explanatory diagrams of chromosomes of A. gravesii complex from different populations. A: individuals collected in JEB (2n = 120) (wah2020052609); B: individuals collected in HFB (2n = ca. 120) (WAH055); C: individuals collected in HMMB (2n = 128) (wah2020060608); D: individuals collected in GAS (2n = 128) (wah2020062102); E: individuals collected in SJB (2n = ca. 150) (wah20191113003); F: individuals collected in JW1B1 (2n = ca. 150) (wah2020060611); G: individuals collected in HB1B (2n = 150) (wah2020052605); H: individuals collected in GGL1 (2n = ca. 180) (wah2020062003); I: individuals collected in GXM (2n = 64) (wah2020062202). All short names of populations were listed in Table 1.
FIGURES 8–10 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 8–10. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. dentatum and A. mariesii. 8: sample of A. dentatum (2n = ca. 60) collected in HB2C (wah2020052604); 9: sample of A. mariesii (2n = ca. 120) from the SBSX (wah20191113002); 10: sample of A. mariesii complex (2n = 60) collected in HMMX (wah2020060609). All short names of HMMX, SBSX and HB2C were listed in Table 1.
FIGURES 1–2 in Cytotaxonomy of the endemic Karst and Danxia ferns in Adiantum (Pteridaceae)
FIGURES 1–2. Photomicrographs (left) and explanatory diagrams (right) of chromosomes of A. juxtapositum (2n = 64). 1: individuals collected in GSD (WAH029); 2: individuals collected in HCZ (wah20191115001). All short names were listed in Table 1.
FIGURE 2. Polystichum suiyangense.—A. Habit.—B in Polystichum suiyangense (sect. Sphaenopolystichum, Dryopteridaceae), a new fern from Guizhou, China
FIGURE 2. Polystichum suiyangense.—A. Habit.—B. Portion of rachis with pinna.—C. Portion of petiole showing scale.—D. Petiole scale.—E. Microscale on abaxial surface of pinna (Drawn by You-Chao Dang and Shuang Chen based on the holotype).
FIGURE 1. Polystichum suiyangense.—A, B in Polystichum suiyangense (sect. Sphaenopolystichum, Dryopteridaceae), a new fern from Guizhou, China
FIGURE 1. Polystichum suiyangense.—A, B. Plants in field.—C. Lamina.—D. Lower portion of lamina.—E. Upper portion of lamina.— F. Portion of adaxial lamina.—G. Portion of abaxial lamina.—H. Upper portion of petiole and lower portion of rachis.—I. Upper of petiole.—J. Lower portion of plant.—K. Rachis scale.—L. Petiole scale.—M. Microscale on abaxial surface of pinna (Photographs by Bo Wang).
FIGURE 3 in Pteris trifoliolata (Pteridaceae), a new brake fern species from karst area in Guangxi, China
FIGURE 3. Geographical distribution of Pteris trifoliolata H.J. Wei in Guangxi Zhuang Autonomous Region, China.
FIGURE 1. Pteris trifoliolata.—A. Habitat.—B in Pteris trifoliolata (Pteridaceae), a new brake fern species from karst area in Guangxi, China
FIGURE 1. Pteris trifoliolata.—A. Habitat.—B. Habit (individual plant).—C. Adaxial view of fertile lamina.—D. Sterile lamina.—E. Abaxial view of fertile lamina.—F. Rhizome and stipes.—G. Abaxial view of fertile pinna.—H. Adaxial view of fertile pinna.
FIGURE 2. Phylogenetic relationships within the genus Abrodictyum, from a in Abrodictyum inexpectatum, an unexpected new fern species (Hymenophyllaceae, Polypodiidae) for Madagascar, as revealed by an integrative approach
FIGURE 2. Phylogenetic relationships within the genus Abrodictyum, from a BI analysis on rbcL sequences, only in-group is shown. The values on nodes are Posterior Probabilities (PP) superior to 0.90. The pink box shows the Afro-Malagasy clade, all other species are from Asia, Australasia and/or Pacific islands, or from Neotropics (A. rigidum). A. aff. angustimarginatum (in bold) = A. inexpectatum Dubuisson & Rouhan sp. nov.
FIGURE 1 in Abrodictyum inexpectatum, an unexpected new fern species (Hymenophyllaceae, Polypodiidae) for Madagascar, as revealed by an integrative approach
FIGURE 1. Comparison of some Malagasy Abrodictyum. A‒B: A. aff. angustimarginatum (Bonap.) J.P. Roux (= A. inexpectatum Dubuisson & Rouhan sp. nov.; G. Rouhan s.n., P02434058). A. Habitus. B. Detail of terminal segments, scale = 0.5 mm. C‒D: A. angustimarginatum (L. Bauret et al. 144, P02434057). C. Habitus. D. Detail of terminal segments, scale = 0.5 mm. E‒G: A. franceae Bauret & Dubuisson (G. Rouhan 1602, P02434061). E. Habitus in the wild. F. Detail of the diagnostic curled pinnules in the wild. G. Detail of terminal segments, scale = 0.5 mm. (A, C & E: photographs by L. Bauret).
Deep vicariance and frequent transoceanic dispersal shape the evolutionary history of a globally distributed fern family
<p>Premise</p> <p>Historical biogeography of ferns is typically expected to be dominated by long-distance dispersal, due to their minuscule spores. However, few studies have inferred the historical biogeography of a large and widely distributed group of ferns to test this hypothesis. Our aims are to determine the extent to which long-distance dispersal vs. vicariance have shaped the history of the fern family Blechnaceae, to explore ecological correlates of dispersal and diversification, and to determine whether these patterns differ between the northern and southern hemispheres.</p> <p>Methods</p> <p>We used sequence data for three chloroplast loci to infer a time-calibrated phylogeny for 154 out of 265 species of Blechnaceae, including representatives of all genera in the family. This tree was used to conduct ancestral range reconstruction and stochastic character mapping, estimate diversification rates, and identify ecological correlates of diversification.</p> <p>Key results</p> <p>Blechnaceae originated in Eurasia and began diversifying in the late Cretaceous. A lineage comprising most extant diversity diversified principally in the austral Pacific region around the Paleocene-Eocene Thermal Maximum. Land connections that existed near the poles during periods of warm climates likely facilitated migration of several lineages, with subsequent climate-mediated vicariance shaping current distributions. Long-distance dispersal is frequent and asymmetrical, with New Zealand/Pacific Islands, Australia, and tropical America being major source areas.</p> <p>Conclusions</p> <p>Ancient vicariance and extensive long-distance dispersal have shaped the history of Blechnaceae in both the northern and southern hemispheres. The exceptional diversity in austral regions appears to reflect rapid speciation in these areas; mechanisms underlying this evolutionary success remain uncertain.</p>
Carboniferous seed fern Paripteris
A fossil specimen of the seed fern *Paripteris pseudogigantea* (specimen number BIRUG 15153a), on display in the Evolution of Life gallery of the Lapworth Museum of Geology. The specimen is from a Carboniferous ironstone nodule from the Coal Measures near Dudley, West Midlands, UK. Source: Objaverse 1.0 / Sketchfab
FIGURE 2 in Rediscovery of the mysterious Taiwanese micromoth Pachyrhabda citrinacma Meyrick, 1936 (Stathmopodidae) in museum and field, with notes on the fern-spore feeding larva
FIGURE 2. Adults of Pachyrhabda citrinacma Meyrick, 1936. A, B: Male specimen, TAIWAN: Kaohsiung, Taoyuan, Fenggangshan. C, D: Female specimen, TAIWAN: Kaohsiung, Taoyuan, Fenggangshan. Scale bars: A, B, C, D = 5 mm.
FIGURE 1 in Rediscovery of the mysterious Taiwanese micromoth Pachyrhabda citrinacma Meyrick, 1936 (Stathmopodidae) in museum and field, with notes on the fern-spore feeding larva
FIGURE 1. Issiki collected specimen of Pachyrhabda citrinacma Meyrick, 1936. Specimen of Pachyrhabda citrinacma from NTUE, TAIWAN: New Taipei City, Xindian. Scale bar = 1 mm.
FIGURE 4 in Rediscovery of the mysterious Taiwanese micromoth Pachyrhabda citrinacma Meyrick, 1936 (Stathmopodidae) in museum and field, with notes on the fern-spore feeding larva
FIGURE 4. Immatures and adults of Pachyrhabda citrinacma. A: Immature artifacts on Asplenium antiquum. B: Larva and its artifacts on Antrophyum formosana. C: Pupa on A. formosana. D: Adult and its resting posture.
FIGURE 3 in Rediscovery of the mysterious Taiwanese micromoth Pachyrhabda citrinacma Meyrick, 1936 (Stathmopodidae) in museum and field, with notes on the fern-spore feeding larva
FIGURE 3. Genitalia of Pachyrhabda citrinacma Meyrick, 1936. A, B: Male genitalia of Issiki-collected specimen. C, D: Male genitalia, TAIWAN: New Taipei City, Wulai, Fushan (Gen. Prep. ZYS-0083, NTNU). E: Female genitalia, TAIWAN: New Taipei City, Wulai, Fushan (Gen. Prep. ZYS-0204, NTNU). Scale bars: A, B, C, D, E = 0.5 mm.
Field measurements performed on Staghorn fern colonies (Platycerium bifurcatum)
<p>This study explores the relationship observed between 'guests' – foreign inhabitants of social colonies – and the density and fecundity of eusocial-like staghorn ferns (<em>Platycerium bifurcatum</em>, Polypodiaceae). Our observations suggest that guests in staghorn colonies have a range of commensal and negative relationships, paralleling those seen in eusocial animal species.</p>
Fig. 2 50 in Molecular phylogeny of the endemic fern genera Cyrtomidictyum and Cyrtogonellum (Dryopteridaceae) from East Asia
Fig. 2 50% majority rule consensus tree from four Bayesian analyses of 1,000,000 generations each of the rbcL data set, excluding burn-in trees. Posterior probability support values ≥ 0.90 from Bayesian analyses shown above branches, bootstrap support values>50% from Maximum Likelihood analyses below branches
Fig. 5 in Molecular phylogeny of the endemic fern genera Cyrtomidictyum and Cyrtogonellum (Dryopteridaceae) from East Asia
Fig. 5 Consensus tree resulting from Bayesian analysis of the combined (rbcL, atpB, rps4-trnS, and trnL-trnF) data set. Numbers on branches are Bayesian (PP)/Maximum Likelihood (BS) support values
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.