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.
1,998
datasets available to search
ShareScore release 0.9.0
Dataset results
1,998 results for “Herbarium specimen”
FIGURE 7 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 7. Ulva cf. flexuosa (Voucher code: ZH0002). A—Wide thalli in the herbarium sheet (arrow), B—numerous mineral inclusions on the thallic surface (arrows), C—monolayer of the cell (arrow), D—crystals of calcium carbonate (arrow), E—thick-walled cells (arrows) in the basal part of the thalli, F—irregularly arranged cells with 1–2 pyrenoids (arrows).
FIGURE 2 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 2. Ulva flexuosa subsp. paradoxa (C. Agardh) M.J. Wynne (Voucher code: ZH0005). A—Dense filamentous thalli,, B and C—several branches of minor thalli, D—monoserrate proliferations with a slightly sharpened apical cell, E—chromatophore with 1–2 pyrenoids, F—proliferation with single pyrenoids and cone-shaped apical cell, G—branched arrangement of two rows of cells with single pyrenoids.
FIGURE 16 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 16. Ulva flexuosa subsp. pilifera (Kützing) M.J. Wynne (Voucher code: ZH0010). A—Intestinally undulating thallus with several branches (arrows), B and C—surface of thalli with mineral incrustation (arrow), D—irregular arrangement of cells in the basal part of the thalli, E—cells with rounded edges with 2 –5 pyrenoids in single chromatophore (arrow), F—cell of uniseriate proliferation with thick cell wall (arrow), G—cells with irregularly shaped chromatophores, H—square-rectangular cells (arrow) from two-row branching.
FIGURE 12 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 12. Ulva sp. (Voucher code: ZH0006). A—Intestinally undulating thallus from herbarium sheet (arrow), B and C—mineral incrustation on the surface of thallus (arrows), D—irregularly arranged cells with characteristic initial cells of uniseriate branching (arrows), E—cells with 1–2 pyrenoids (arrows), F—initial cell of a branch with a ring of neighbouring cells (arrow).
FIGURE 17 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 17. Ulva cf. flexuosa (Voucher code: ZH0011). A—Thalli from herbarium sheet (arrow), B—surface of thallus with mineral
FIGURE 6 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 6. Ulva flexuosa subsp. pilifera (Kützing) M.J. Wynne (Voucher code: ZH0001). A—Curly-bubbled thallus in a characteristic cluster from the herbarium sheet (arrow), B—mineral crystals of CaCO 3 on the thallus surface (arrows), C—irregular arrangement of cells in thallus, D—cells with 4–5 walls, view from central part of thalli, E—single pyrenoids in cells (arrows).
FIGURE 11 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 11. Ulva sp. (Voucher code: WA0000019415). A—Curly bubbled thallus showing strong corrugation and marked furcation (arrow), B and C—extensive incrustation (arrows) on the surface of the thallus, D—irregularly arranged cells (arrow) in the thallus, E and F—stained cellular organelles (arrows).
FIGURE 9 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 9. Ulva sp. (Voucher code: WA0000019410). A—Cluster of highly mineralized thalli (arrow), B—stained filamentous thalli of Ulva (arrows), C—filamentous thallus (arrow) with numerous crystals and diatoms periphyton, D—single branch (arrow), highly covered with periphyton and CaCO , E and F—apical cells of proliferation (arrows), G—thick cells (arrow) of the uniseriate branches.
FIGURE 15 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 15. Ulva cf. flexuosa (Voucher code: ZH0009). A—Intestinally undulating thallus from herbarium sheet (arrow), B—smooth surface of thallus, C—irregularly arranged cells in thalli (arrow), D—part of monoseriate branching of thallus (arrows), E—numerous uniseriate proliferations, F—cells with poorly stained pyrenoids (1 – 3 per cell) (arrow), G—rounded initial cells (arrow) of uniseriate branches, H—germination of initial cells (arrow) of new uniseriate branches, I—several cellular proliferations with rounded apical cells (arrow).
FIGURE 8 in Revision of herbarium specimens of freshwater Enteromorpha-like Ulva (Ulvaceae, Chlorophyta) collected from Central Europe during the years 1849-1959
FIGURE 8. Ulva flexuosa subsp. paradoxa (C. Agardh) M.J. Wynne (Voucher code: WA0000019409). A—Clusters of thalli in herbarium sheet (arrow), B—highly fragmented thalli (arrow), C—aggregation of filamentous thalli with different widths (arrow), D—shrunken thalli with deformed cells (arrow), E—multicellular branching of the thalli (arrow), F—cells with 1–4 pyrenoids (arrows) in a single chromatophore, G—single branching of tubular thalli (arrow).
FIGURE 15. Selected herbarium specimen details. A, T in A revision of Taraxacum sect. Atrata, a dandelion group centred in the Middle Asia, and the problem of Taraxacum brevirostre
FIGURE 15. Selected herbarium specimen details. A, T. dzhungaricola; B, T. pseudoatratum; C, T. subglaciale; D, T. goloskokovii; E, F, T. sinotianschanicum. All specimens are preserved at LE.
FIGURE 1 in The holotype of Chenopodium baryosmon (Chenopodiaceae) rediscovered: just one of many type specimens from the private herbarium of Schultes, now in the Turczaninow herbarium at KW
FIGURE 1. Holotype of Chenopodium baryosmon (≡ Salsola baryosma, now treated as a synonym of Caroxylon imbricatum), KW001002885; the only actual specimen of the species seen by Schultes (courtesy of the National Herbarium of Ukraine, KW).
FIGURE 1. Herbarium specimen J.F.B. Pastore & H. Moreira 4067 in Heterophylly and post-fire flowering of Lippia horridula (Verbenaceae): a "phoenix" of Brazilian Cerrado
FIGURE 1. Herbarium specimen J.F.B. Pastore & H. Moreira 4067 (CEN!) selected as epitype for Lippia horridula with presence of both vegetative and reproductive structures.
FIGURE 3. Herbarium specimens. A in Heterophylly and post-fire flowering of Lippia horridula (Verbenaceae): a "phoenix" of Brazilian Cerrado
FIGURE 3. Herbarium specimens. A. Holotype of Eriope horridula: Specimen W.J. Burchell 8426-5 (K!, http://specimens.kew.org/ herbarium/K000470883), with presence of vegetative parts only (arrow). B. Specimen Walter et al. 4617 (CEN!) with the presence of reproductive structures only.
Herbarium specimen records from GBIF used for Digi-Leap
<p><strong>We searched the GBIF database on September 11, 2023 for all specimens meeting the following criteria; members of Tracheophyta, collected in the United States, record containing a specimen image, preserved specimen type, english language and not cultivated. This search resulted in 4,091,778 records of which we randomly selected 2,000 to use for Digi-Leap development and training.</strong></p> <p> </p> <p><strong>All GBIF records have the prefix "DL_GBIF" and include a rights.txt file.</strong></p> <p><strong>There are 3 separate scoring files. One for each model; rule-based, GPT and ensemble.</strong></p>
FIGURE 1 in Stable citations for herbarium specimens on the internet: an illustration from a taxonomic revision of Duboscia (Malvaceae)
FIGURE 1. Duboscia macrocarpa. The short, stout petiole and long, straight hairs on the petiole and stem can be clearly seen.
FIGURE 23. Rubus armeniacus. A. Herbarium specimen. B. Primocane with leaves. C. Primocane. D. Leaf abaxially. E in Rubi Capenses: a further contribution to the knowledge of the genus Rubus (Rosaceae) in South Africa
FIGURE 23. Rubus armeniacus. A. Herbarium specimen. B. Primocane with leaves. C. Primocane. D. Leaf abaxially. E. Axis and pedicels. Photographs: A. van de Beek.
FIGURE 21. Rubus probabilis. A. Herbarium specimen. B. Habit. C. Primocane. D. Leaf abaxially. E. Flowering branch. F. Floricane with inflorescences. G. Inflorescence. H in Rubi Capenses: a further contribution to the knowledge of the genus Rubus (Rosaceae) in South Africa
FIGURE 21. Rubus probabilis. A. Herbarium specimen. B. Habit. C. Primocane. D. Leaf abaxially. E. Flowering branch. F. Floricane with inflorescences. G. Inflorescence. H. Flowers. Photographs: A. van de Beek.
FIGURE 15. Rubus thaumasius. A. Herbarium specimen. B. Habit. C. Primocane. D. Leaf abaxially. E. Inflorescence. F. Inflorescence. G in Rubi Capenses: a further contribution to the knowledge of the genus Rubus (Rosaceae) in South Africa
FIGURE 15. Rubus thaumasius. A. Herbarium specimen. B. Habit. C. Primocane. D. Leaf abaxially. E. Inflorescence. F. Inflorescence. G. Flower. Photographs: A. van de Beek.
FIGURE 14. Herbarium specimen T.B. Croat 39751 in Critical review of "Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus" published in PhytoKeys 208: 1-102 (2022)
FIGURE 14. Herbarium specimen T.B. Croat 39751 (MO!), determined to be Ceratozamia robusta by D.W. Stevenson in Nov. 1985, which later became C. whitelockiana (photo by Miguel Angel Pérez-Farrera; used with permission).
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.