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2023 Mt. Hood Glacier Margins for "Unprecedented Twenty-First Century Glacier Loss on Mt. Hood, Oregon, U.S.A."
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FIGURE 1. Luzula cascadensis. A. Habit. B. Stem leaf sheath summit. C. Channeled upper margins and swollen leaf tip. D. Inflorescence. E in The Luzula comosa complex (Luzula section Luzula, Juncaceae) in western North America
FIGURE 1. Luzula cascadensis. A. Habit. B. Stem leaf sheath summit. C. Channeled upper margins and swollen leaf tip. D. Inflorescence. E. Bracteoles and fruiting tepals, partial view of stigmas. F. Stigmas, style and ripe fruit. G. Ripe fruit, top view. H. Spike. I. Seed, basal aril, and hairs. J. Stamen. (A–E, J from the holotype; F–G from Wilson 16721 & Zika; I from Zika 25701 et al.).
FIGURE 1. Homalopetalum joinvillense Mancinelli & E.C. Smidt. A. Habit. B. Flower. C. Dorsal sepal. D. Lateral sepal. E. Petal. F. Lip with margin detailed. G in Homalopetalum joinvillense (Epidendreae; Epidendroideae; Orchidaceae): a new species from Southern Brazil
FIGURE 1. Homalopetalum joinvillense Mancinelli & E.C. Smidt. A. Habit. B. Flower. C. Dorsal sepal. D. Lateral sepal. E. Petal. F. Lip with margin detailed. G. Lip and column—lateral view. H. Column—front view. I. Anther—dorsal face. J. Anther—ventral face. K. Pollinia.
FIGURE 2. Schistidium squarrosum. A. Habit. B. Sterile plant. C. Stem section. D–F. Cauline leaves. G–I. Distal leaf sections. J–K. Cauline leaf apices. L. Median marginal laminal cells. M. Basal laminal cells. N. Medial leaf section. O in Two new species of Schistidium (Grimmiaceae, Bryophyta) from western North America
FIGURE 2. Schistidium squarrosum. A. Habit. B. Sterile plant. C. Stem section. D–F. Cauline leaves. G–I. Distal leaf sections. J–K. Cauline leaf apices. L. Median marginal laminal cells. M. Basal laminal cells. N. Medial leaf section. O. Capsule in perichaetium. P. Perichaetial leaf. Q. Capsule. R. Operculum and calyptra. S. Peristome tooth. Scale bar: 4 mm for A; 3 mm for B; 1 mm for O, Q; 100 μm for C, G–N, S; 0.5 mm for D–F, P–R.
FIGURE 1. Schistidium splendens. A. Habit. B. Fertile plant. C. Stem section. D. Cauline leaf. E–F. Leaf sections. G–H. Cauline leaf apices. I. Median marginal laminal cells. J. Basal laminal cells. K in Two new species of Schistidium (Grimmiaceae, Bryophyta) from western North America
FIGURE 1. Schistidium splendens. A. Habit. B. Fertile plant. C. Stem section. D. Cauline leaf. E–F. Leaf sections. G–H. Cauline leaf apices. I. Median marginal laminal cells. J. Basal laminal cells. K. Capsule in perichaetium. L. Perichaetial leaf. M. Capsule, opercula, dry. N. Capsule, wet. O. Cells at capsule mouth. Scale bar: 4 mm for A; 2 mm for B; 0.75 mm for K, M, N; 100 μm for C, E–J, O; 0.5 mm for D, L.
FIGURE 2. Pagamea spruceana. A. Leaf with revolute margin B in Pagamea spruceana (Rubiaceae, Gaertnereae), a new species from flooded white-sand forests in the Upper Rio Negro region, Brazil
FIGURE 2. Pagamea spruceana. A. Leaf with revolute margin B. Detail of leaf blade with puberulous margin. C. Capitate inflorescences with buds and flowers. D. Inflorescence with fruits; main axis and cupules reddish orange and green, immature fruits. E. Inflorescence head and distal portion of peduncle. F. Ovary with long style in a functionally pistillate flower. G. Ovary with short style in a functionally staminate flower. H. Stem with dark brown bark. I. Individual of P. spruceana. J. Long-term inundated igapó at Piraiauara River, in the Upper Rio Negro region. Photos by E. Prata.
FIGURE 2. Mycetia dagohoyana. A. Branch. B. Inflorescence. C. Flower bud. D. Flower. E. Open corolla. F. Calyx lobe with marginal glands. G in Mycetia dagohoyana: a new species of Argostemmateae (Rubiaceae) from Agusan del Norte, Philippines
FIGURE 2. Mycetia dagohoyana. A. Branch. B. Inflorescence. C. Flower bud. D. Flower. E. Open corolla. F. Calyx lobe with marginal glands. G. Flower in longitudinal section. H. Fruit. I. Fruit in longitudinal section. From Tandang & Banag HI-003. Drawn by V. Tangcueco.
FIGURE 3. Mawenzhangia thamnobryoides. 1. Leaf apex. 2. Upper marginal cells. 3. Mid-leaf cells. 4. Basal cells. 5 in Mawenzhangia thamnobryoides (Bryophyta, Lembophyllaceae), a new moss genus and species from the Shangri-la region of Yunnan Province, China
FIGURE 3. Mawenzhangia thamnobryoides. 1. Leaf apex. 2. Upper marginal cells. 3. Mid-leaf cells. 4. Basal cells. 5. Apex of innermost perichaetial leaf. 1−2, 5 from Ma 17-9217 (KRAM, isotype); 3−4 from Ma 17-9184 (KRAM, paratype). Scale bar 100 μm.
FIGURE 1. Sapium sceleratum. A. Branch. B–C. Acropetiolar glands. D. Leaf margin. E–F. Leaf shapes and veins pattern. G. Inflorescence base. H. Staminate flower. I in Reinstatement of Sapium sceleratum (Euphorbiaceae), an endemic species from Northeast Brazil, and new circumscription of Sapium argutum
FIGURE 1. Sapium sceleratum. A. Branch. B–C. Acropetiolar glands. D. Leaf margin. E–F. Leaf shapes and veins pattern. G. Inflorescence base. H. Staminate flower. I. Pistillate flower showing calyx covering more than half of the length of the ovary. J. Pistillate sepal. A–C. A. M. Miranda 3273 (HST). D. A. M. Miranda 4214 (HST). E–H. Carvalho Sobrinho et al. 1840 (HVASF).
FIGURE 2. Sapium argutum. A. Branch. B–C. Acropetiolar glands. D. Leaf shape and veins pattern. E–F. Leaf margin. G. Inflorescence apex. H. Inflorescence base. I. Staminate flower. J. Pistillate flower. K. Pistillate sepal. L. Seed. A–L. W. Cordeiro 780 in Reinstatement of Sapium sceleratum (Euphorbiaceae), an endemic species from Northeast Brazil, and new circumscription of Sapium argutum
FIGURE 2. Sapium argutum. A. Branch. B–C. Acropetiolar glands. D. Leaf shape and veins pattern. E–F. Leaf margin. G. Inflorescence apex. H. Inflorescence base. I. Staminate flower. J. Pistillate flower. K. Pistillate sepal. L. Seed. A–L. W. Cordeiro 780 (PEUFR).
FIGURE 17. Lepidaploa remotiflora. A. Plant. B. Root. C. Margin leaf detail. D. Capitula. E–G in The genus Lepidaploa (Vernonieae, Asteraceae) in southern South America
FIGURE 17. Lepidaploa remotiflora. A. Plant. B. Root. C. Margin leaf detail. D. Capitula. E–G: Outer phyllaries. G–K. Inner phyllaries. L. Floret. M. Corolla lobe detail. Source: Marques & Dematteis (2014).
FIGURE 1. A. Aspilia jolyana G.M.Barroso. Imbricated involucral bracts. B–D. Aspilia subalpestris Baker. B. Subequal involucral bracts. C. Leaves with revolute margin. D in A new synonym in Pantropical Aspilia (Ecliptinae, Heliantheae, Asteraceae)
FIGURE 1. A. Aspilia jolyana G.M.Barroso. Imbricated involucral bracts. B–D. Aspilia subalpestris Baker. B. Subequal involucral bracts. C. Leaves with revolute margin. D. Flowering branch. (Photographs: A: N. Roque; B–D: M. Alves).
Figures in "Gulf Stream mesoscale variabilities drive bottom marine heatwaves in Northwest Atlantic continental margin methane seeps"
<p>Data and code for figures in "Gulf Stream mesoscale variabilities drive bottom marine heatwaves in Northwest Atlantic continental margin methane seeps".</p>
Experimental Study on Concrete Strength for Rigid Pavement with Marginal Aggregate
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A Reconstructed Coastal Acidification Database (ReCAD) pCO2 data product for the North American Atlantic Coastal Ocean Margins
<h1><strong>Reconstructed Coastal Acidification Database (ReCAD)</strong></h1> <p>Insufficient spatiotemporal coverage of the partial pressure of CO<sub>2</sub> (<em>p</em>CO<sub>2</sub>) observations has hindered precise carbon cycle studies in coastal oceans and justifies the development of spatially and temporally continuous <em>p</em>CO<sub>2</sub> data products. Earlier <em>p</em>CO<sub>2</sub> products have difficulties in capturing the heterogeneity of regional variations and decadal trends of <em>p</em>CO<sub>2</sub> in the North American Atlantic Coastal Ocean Margin (NAACOM). This study developed a regional reconstructed <em>p</em>CO<sub>2</sub> product for the NAACOM (Reconstructed Coastal Acidification Database-<em>p</em>CO<sub>2</sub>, or ReCAD-NAACOM-<em>p</em>CO<sub>2</sub>) using a two-step approach combining random forest regression and linear regression. The product provides monthly <em>p</em>CO<sub>2</sub> data at 0.25° spatial resolution from 1993 to 2021, enabling investigation of regional spatial differences, seasonal cycles, and decadal changes in <em>p</em>CO<sub>2</sub>. The observation-based reconstruction was trained using Surface Ocean CO<sub>2</sub> Atlas (SOCAT) observations as observational values, with various satellite-derived and reanalysis environmental variables known to control sea surface <em>p</em>CO<sub>2</sub> as model inputs. The product shows high accuracy during the model training, validation, and independent test phases, demonstrating robustness and capability to accurately reconstruct <em>p</em>CO<sub>2</sub> in regions or periods lacking direct observational data. Compared with all the observation samples from SOCAT, the <em>p</em>CO<sub>2</sub> product yields a determination coefficient of 0.92, a root-mean-square error of 12.70 µatm, and an accumulative uncertainty of 23.25 µatm. The ReCAD-NAACOM-<em>p</em>CO<sub>2</sub> product demonstrates its capability to resolve seasonal cycles, regional-scale variations, and decadal trends of <em>p</em>CO<sub>2</sub> along the NAACOM. This new product provides reliable <em>p</em>CO<sub>2</sub> data for more precise studies of coastal carbon dynamics in the NAACOM region. The dataset is publicly accessible at <a href="https://doi.org/10.5281/zenodo.11500974">https://doi.org/10.5281/zenodo.11500974</a> (Wu et al., 2024a) and will be updated regularly.</p> <div> <div> </div> </div> <p><strong>Version 1.1: </strong>Update the training set output as the direct model outputs instead of being the 10-fold cross-validation output in v1.0.</p> <p><strong>Data description paper</strong><em><strong>: </strong></em>Wu, Z., Lu, W., Roobaert, A., Song, L., Yan, X.-H., and Cai, W.-J.: A machine-learning reconstruction of sea surface <em>p</em>CO<sub>2</sub> in the North American Atlantic Coastal Ocean Margin from 1993 to 2021, Earth Syst. Sci. Data, 17, 43–63, <a href="https://doi.org/10.5194/essd-17-43-2025">https://doi.org/10.5194/essd-17-43-2025</a>, 2025.</p>
Scanning Electron Microscopy Datasets – Coccospheres and detached coccoliths in waters off the Southeast Pacific margin
<p>For enumeration of coccospheres and detached coccoliths polycarbonate filters were scanned at 800-1500x magnification using a Scanning Electron Microscopy (Quanta FEG 250). </p>
Data from: Causes of ecological gradients in leaf margin entirety: Evaluating the roles of biomechanics, hydraulics, vein geometry, and bud packing
PREMISE OF THE STUDY: A recent commentary by Edwards et al. (Am. J. Bot. 103: 975–978) proposed that constraints imposed by the packing of young leaves in buds could explain the positive association between non-entire leaf margins and latitude but did not thoroughly consider alternative explanations. METHODS: We review the logic and evidence underlying six major hypotheses for the functional significance of marginal teeth, involving putative effects on (1) leaf cooling, (2) optimal support and supply of the areas served by major veins, (3) enhanced leaf-margin photosynthesis, (4) hydathodal function, (5) defense against herbivores, and (6) bud packing. KEY RESULTS: Theoretical and empirical problems undermine all hypotheses except the support–supply hypothesis, which implies that thinner leaves should have non-entire margins. Phylogenetically structured analyses across angiosperms, the El Yunque flora, and the genus Viburnum all demonstrate that non-entire margins are indeed more common in thinner leaves. Across angiosperms, the association of leaf thickness with non-entire leaf margins is stronger than that of latitude. CONCLUSION: We outline a synthetic model showing how biomechanics, hydraulics, vein geometry, rates of leaf expansion, and length of development within resting buds, all tied to leaf thickness, drive patterns in the distribution of entire vs. non-entire leaf margins. Our model accounts for dominance of entire margins in the tropics, Mediterranean scrub, and tundra, non-entire margins in cold temperate deciduous forests and tropical vines and early-successional trees, and entire leaf margins in monocots. Spinose-toothed leaves should be favored in short-statured evergreen trees and shrubs, primarily in Mediterranean scrub and related semiarid habitats.
FIGURE 1. Bryoerythrophyllum subcaespitosum. A. Habit, dry. B–D. Leaves. E. Perichaetial leaf. F. Leaf apex. G. Basal laminal cells. H. Perichaetial leaf margin. I. Upper laminal cells. J–M in Bryoerythrophyllum subcaespitosum (Pottiaceae), a new combination for a neglected species from South America
FIGURE 1. Bryoerythrophyllum subcaespitosum. A. Habit, dry. B–D. Leaves. E. Perichaetial leaf. F. Leaf apex. G. Basal laminal cells. H. Perichaetial leaf margin. I. Upper laminal cells. J–M. Cross-sections of the leaf. N. Peristome. O. Cross-section of stem. Scale bars: A = 0.1 cm. B–E = 0.2 mm. F, H, N = 50 µm. G = 60 µm. I = 20 µm. J, K, L, M = 40 µm. O = 25 µm. A–C, F, G, I–M, O from Cano et al. 5149, MUB; D, E, H, N from Lindig 2008, BM.
FIGURE 2. Anthoceros angustus Steph. A. Thallus with marginal gemmae. B. Male thallus, with androecia linearly arranged along the median line. C. Gemma. D in A revision of the genus Anthoceros (Anthocerotaceae, Anthocerotophyta) in China
FIGURE 2. Anthoceros angustus Steph. A. Thallus with marginal gemmae. B. Male thallus, with androecia linearly arranged along the median line. C. Gemma. D. Dehisced antheridia with orange chromoplasts in jacket cells. E. Transverse section of thallus showing large mucilage cavities. F. Elongated epidermal cells of a young capsule, showing thin-walled cells and two stomata. G. Epidermis of thallus, showing solitary chloroplasts with starch granules. H. Elongated, thin-walled pseudoelater. I, K, N, O. SEM micrographs showing proximal spore faces with distinct trilete marks and shortly papillate to spinulate-blunt protuberances. J, L, M, P. SEM micrographs showing distal spore faces with adherent studded spines forming a false lamellate pattern. A and C–M from T. Peng & J. Wang 20110520-8 (HSNU), B and D from T. Peng & J. Wang 20111011-9 (HSNU), N–P from Rev. Bretaudeau 1239 (holotype of Anthoceros angustus: G-12816). Scale bars: A, B=1 mm; C, E=100 µm; D, F, H=50 µm; G, I–P=10 µm.
FIGURE 1. A. Fruiting branch. B. Leaf base, lower surface. C. Leaf margin, lower surface. D. Leaf margin, upper surface. E–G in A new species of Campomanesia (Myrtaceae) from Bahia, Brazil, and its relationships with the C. xanthocarpa complex
FIGURE 1. A. Fruiting branch. B. Leaf base, lower surface. C. Leaf margin, lower surface. D. Leaf margin, upper surface. E–G. Variation of the leaf format. H. Fruit. I. Detail of the calyx-lobes.
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Allen Brain Atlas
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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
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