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Fig. 1. A–C. Rhaphiostylis elegans Engl. A. Flower B. Flower without petals and stamens. C. Leaf. D–G in Rhaphiostylis minima Jongkind (Icacinaceae), a new liana species from Ivory Coast & Liberia
Fig. 1. A–C. Rhaphiostylis elegans Engl. A. Flower B. Flower without petals and stamens. C. Leaf. D–G. Rhaphiostylis minima sp. nov. D. Branch with flowers. E. Flower. F. Flower without petals and stamens. G. Leaf. H–M. Rhaphiostylis preussii Engl. H. Flower. I. Flower without petals and stamens. J. Leaf. K. Flower. L. Flower without petals and stamens. M. Leaf. All flowers are on the same scale (scale bar with B) and all single leaves too (scale bar with G). A–C from Tchouto & Elad 3310 (WAG), D–G from W.de Wilde 1061 (WAG), H–J from Beentje 1353 B from Ivory Coast (WAG), K–M from Breteler 14204 from Gabon (WAG). Drawn by Hans de Vries.
Text-fig. 10. Flowers and fruits. a: Pentamerous flower from top view, UAPC-ALTA S 67696. b, d: Part and counterpart of a flower with many stamens, type 1 UAPC-ALTA S 6560AB. c: Flower with many stamens, type 2, UAPC-ALTA S 26359. e: Small radially symmetric flower with pinnate venation in each sepal. UAPC-ALTA S 25356. f: Pteroheterochrosperma horseflyensis, UAPC-ALTA S 59494B. g, k: Fruit showing arched longitudinal ribs and and punctate surface, UAPC-ALTA S 26355A. h: Small flower UAPCALTA S 26360. i: Lagokarpos lacustris, UAPC-ALTA S 59498B. j: Lagokarpos lacustris, RBCM.EH2009.023.0003. Scale bars: a–d, g, h = 0.5 cm; e, f, k =0.2 cm; i, j = 1 cm. in The Early Eocene Flora Of Horsefly, British Columbia, Canada And Its Phytogeographic Significance
Text-fig. 10. Flowers and fruits. a: Pentamerous flower from top view, UAPC-ALTA S 67696. b, d: Part and counterpart of a flower with many stamens, type 1 UAPC-ALTA S 6560AB. c: Flower with many stamens, type 2, UAPC-ALTA S 26359. e: Small radially symmetric flower with pinnate venation in each sepal. UAPC-ALTA S 25356. f: Pteroheterochrosperma horseflyensis, UAPC-ALTA S 59494B. g, k: Fruit showing arched longitudinal ribs and and punctate surface, UAPC-ALTA S 26355A. h: Small flower UAPCALTA S 26360. i: Lagokarpos lacustris, UAPC-ALTA S 59498B. j: Lagokarpos lacustris, RBCM.EH2009.023.0003. Scale bars: a–d, g, h = 0.5 cm; e, f, k =0.2 cm; i, j = 1 cm.
Figure 1 – Streptocarpus malachiticola. A–B. Habit. C. Inflorescence. D. Flower, frontal view. E. Flower, lateral view. F. Stamen. G. Staminode. H in Five new species of Streptocarpus (Gesneriaceae) from Katanga, D.R. Congo
Figure 1 – Streptocarpus malachiticola. A–B. Habit. C. Inflorescence. D. Flower, frontal view. E. Flower, lateral view. F. Stamen. G. Staminode. H. Calyx with ovary, style, and stigma. I. Style and stigma. K. Tip of ovary, style, and stigma. L. Glandular hairs on calyx. M. Tip of sepal with glandular hairs. N. Hairs on pedicel. A, C–K from Malaisse 11427; B from Schaijes 3850. Illustration by Eberhard Fischer.
FIG. 6. — Tovomita saulensis J in The maximum and the minimum: two new species of Tovomita Aubl. (Clusiaceae) from the Guiana Shield with an unusual number of stamens
FIG. 6. — Tovomita saulensis J.Engel & Molino, sp. nov.: A, male inflorescence; B, staminate floral bud dissected: androecium (top left), sepals (top right), petals (bottom); C, detail of pistillode (red circle) and stamens; D, detail of leaf venation; A, Mori et al. 24002; B, C, D, Phillippe et al. 26984. Photographs by Julien Engel. Scale bars: A, D, 5 mm; B, C, 1 mm.
FIG. 2 in The maximum and the minimum: two new species of Tovomita Aubl. (Clusiaceae) from the Guiana Shield with an unusual number of stamens
FIG. 2. — Tovomita maxima Molino & J.Engel, sp. nov.: A, male inflorescence; B, fruit; C, open fruit showing four seeds (one seed missing); D, seeds (two with the red aril removed, one in longitudinal section); A, Sabatier & Fonty 5595; B-D, no voucher. A-D, Photographs by Daniel Sabatier.
FIG. 3 in The maximum and the minimum: two new species of Tovomita Aubl. (Clusiaceae) from the Guiana Shield with an unusual number of stamens
FIG. 3. — Tovomita maxima Molino & J.Engel, sp. nov.: A, gynoecium; B, pistillate flower (perianth missing); C, outer sepals; D, staminate floral buds (note calyptrate bracteoles); E; two inner sepals (top left) and seven petals; F, androecium; C, E, F, from dissected staminate floral bud; A, B, Larpin 1057; C, E, F, Clarke 7145; D, Tostain et al. 2488. Photographs by Julien Engel. Scale bars: A-E, 5 mm; F, 2 mm.
FIG. 4 in The maximum and the minimum: two new species of Tovomita Aubl. (Clusiaceae) from the Guiana Shield with an unusual number of stamens
FIG. 4. — Distribution of Tovomita maxima Molino & J.Engel, sp. nov. (·) and Tovomita saulensis J.Engel & Molino, sp. nov. (*).
FIG. 5. — Tovomita saulensis J in The maximum and the minimum: two new species of Tovomita Aubl. (Clusiaceae) from the Guiana Shield with an unusual number of stamens
FIG. 5. — Tovomita saulensis J.Engel & Molino, sp. nov.: A, leaf adaxial surface (left), abaxial surface (right); B, stem with male inflorescence; C, part of male inflorescence; D, staminate floral bud; E, detail of stamens (left), detail of pistillode and stamens (right); F, immature fruits; G, transverse section of immature fruit apical rostrum (i.e., remaining styles and stigmas); H, sepals (from dissected bud); I, petals (from dissected bud); A, D, E, Phillippe et al. 26984; B, C, H, I, Mori et al. 24002; F, G, Mori & Pipoly 15551. Drawn by Laurence Ramon. Scale bars: A, B, F, 1 cm; C, 5 mm; D, E, G-I, 1 mm.
FIG. 1 in The maximum and the minimum: two new species of Tovomita Aubl. (Clusiaceae) from the Guiana Shield with an unusual number of stamens
FIG. 1. — Tovomita maxima Molino & J.Engel, sp. nov.: A, stem with male inflorescence; B, part of male inflorescence; C, staminate flower; D, detail of stamens; E, staminate floral bud longitudinal section (note the pistillode in the middle); F, pistillate flower (perianth missing); G, petals (from dissected bud); H, gynoecium (left), ovary transverse section (right); I, pistillate flower apical view; J, detail of staminodes; K; staminate floral bud (note calyptrate bracteoles); L, fruit medial section (left), fruit lateral view (right); A, B, Sabatier & Fonty 5595; C-E, K, Tostain et al. 2488; F, H-J, Larpin 1057; G, Sabatier & Molino 5153; L, Granville & Crozier 13646 (left), Henkel 4994 (right). Drawn by Laurence Ramon. Scale bars: A, B, I, 2 cm; C, 1 cm; D-I, K, 5 mm; J, 1 mm.
Text-fig. 8. Scanning electron micrographs (a–f, h) and X-ray microtomographic orthoslices (g) of flowers from Zliv-Řídká Blana locality. a: Taxon 27, epigynous flower, no. NM-F 4504; b: Taxon 30, epigynous flower, remains of two thick sepals, a massive nectary disk (arrowhead) and two styles, no. NM-F 3199; c: Taxon 29, flower with stamens have long filament, calyx (ca) and corolla (co), no. NM-F 3198; d: Taxon 32, flower, no. NM-F 4503; e–h: Taxon 14, e – hypogenous flower, no. NM-F 3196, f – floral bud with a thick pedicel, no. NM-F 3196, g – flower with gynoecium showing central placentation and several seeds, no. NMF 3196, h – flower with gynoecium showing several seeds, no. NM-F 4505. in Plant Mesofossils From The Late Cretaceous Klikov Formation, The Czech Republic
Text-fig. 8. Scanning electron micrographs (a–f, h) and X-ray microtomographic orthoslices (g) of flowers from Zliv-Řídká Blana locality. a: Taxon 27, epigynous flower, no. NM-F 4504; b: Taxon 30, epigynous flower, remains of two thick sepals, a massive nectary disk (arrowhead) and two styles, no. NM-F 3199; c: Taxon 29, flower with stamens have long filament, calyx (ca) and corolla (co), no. NM-F 3198; d: Taxon 32, flower, no. NM-F 4503; e–h: Taxon 14, e – hypogenous flower, no. NM-F 3196, f – floral bud with a thick pedicel, no. NM-F 3196, g – flower with gynoecium showing central placentation and several seeds, no. NMF 3196, h – flower with gynoecium showing several seeds, no. NM-F 4505.
Text-fig. 3. Scanning electron micrographs of Normapolles flowers/fruits from Zliv-Řídká Blana locality. a: Budvaricarpus serialis, aggregation of laterally fused fruits supported by a common bract (br – bract, hp – hypanthium), no. NM-F 3160; b: Budvaricarpus sp., aggregation of laterally fused fruits supported by several bracts, no. NM-F 3619; c: Caryanthus trebecnsis, reproductive unit consists of three bisexual, epigynous flowers/young fruits, no. NM-F 3286; d: Dahlergeniantus sp., hypogynous flower with radial symmetry, no. NM-F 4495; e: Calathiocarpus sp., epigynous flower with radial symmetry, no. NM-F 4631; f: Caryanthus sp. 1, ribbed fruit–nut of deltoid shape, no. NM-F 3208; g: Zlivifructus vachae, bisymmetrical flower with four tepals and four stamens, no. NM-F 3172; h: Taxon 3, ribbed fruit of Normapolles affinity, no. NM-F 3724. in Plant Mesofossils From The Late Cretaceous Klikov Formation, The Czech Republic
Text-fig. 3. Scanning electron micrographs of Normapolles flowers/fruits from Zliv-Řídká Blana locality. a: Budvaricarpus serialis, aggregation of laterally fused fruits supported by a common bract (br – bract, hp – hypanthium), no. NM-F 3160; b: Budvaricarpus sp., aggregation of laterally fused fruits supported by several bracts, no. NM-F 3619; c: Caryanthus trebecnsis, reproductive unit consists of three bisexual, epigynous flowers/young fruits, no. NM-F 3286; d: Dahlergeniantus sp., hypogynous flower with radial symmetry, no. NM-F 4495; e: Calathiocarpus sp., epigynous flower with radial symmetry, no. NM-F 4631; f: Caryanthus sp. 1, ribbed fruit–nut of deltoid shape, no. NM-F 3208; g: Zlivifructus vachae, bisymmetrical flower with four tepals and four stamens, no. NM-F 3172; h: Taxon 3, ribbed fruit of Normapolles affinity, no. NM-F 3724.
Text-fig. 3. SRXTM images of Miranthus elegans gen. et sp. nov.; Mira locality, Portugal. a, b: Volume renderings of flower bud in two different lateral views showing long pedicel, distinct calyx (ca) with almost equiaxial epidermal cells and corolla (co) with nearly smooth surface. c–e: Transverse sections (c, orthoslice xy1500; d, orthoslice xy1760; e, orthoslice xy1850) through flower bud at levels below the anthers showing stamen filaments (yellow) opposite the corolla lobes (co) and smaller staminodes (orange) in Early Flowers Of Primuloid Ericales From The Late Cretaceous Of Portugal And Their Ecological And Phytogeographic Implications
Text-fig. 3. SRXTM images of Miranthus elegans gen. et sp. nov.; Mira locality, Portugal. a, b: Volume renderings of flower bud in two different lateral views showing long pedicel, distinct calyx (ca) with almost equiaxial epidermal cells and corolla (co) with nearly smooth surface. c–e: Transverse sections (c, orthoslice xy1500; d, orthoslice xy1760; e, orthoslice xy1850) through flower bud at levels below the anthers showing stamen filaments (yellow) opposite the corolla lobes (co) and smaller staminodes (orange)
Text-fig. 7. SEM (a) and SRXTM (b–e) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (a–e, holotype). Scale bars = 600 µm (a–c), 300 µm (d, e). in Early Flowers Of Primuloid Ericales From The Late Cretaceous Of Portugal And Their Ecological And Phytogeographic Implications
Text-fig. 7. SEM (a) and SRXTM (b–e) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (a–e, holotype). Scale bars = 600 µm (a–c), 300 µm (d, e).
Figure. Rhynchoglossum ampliatum (C.B.Clarke) B.L.Burtt. A, Habit; B, iNfloresceNce; C, flower (froNt view); D, calyx (dissected open); E, corolla (dissected open); F, stamens; G, pistil. Photographs of Momang Taram & Ojar Taku 808: A–B and D–G, M. Taram; C, D. Borah. in A CLARIFICATION OF THE STATUS OF RHYNCHOGLOSSUM LAZULINUM (GESNERIACEAE: DIDYMOCARPOIDEAE)
Figure. Rhynchoglossum ampliatum (C.B.Clarke) B.L.Burtt. A, Habit; B, iNfloresceNce; C, flower (froNt view); D, calyx (dissected open); E, corolla (dissected open); F, stamens; G, pistil. Photographs of Momang Taram & Ojar Taku 808: A–B and D–G, M. Taram; C, D. Borah.
Text-fig. 3. Scanning electron micrographs (a, b) and synchrotron radiation X-ray tomographic microscopy orthoslices (c–e) of flower of Lambertiflora elegans gen. et sp. nov. from the Early Cretaceous Puddledock locality, Virginia, USA (holotype, PP53796, Puddledock sample 082). a) Flower in lateral view showing long pedicel and overlapping elongated tepals; b) Detail of flower showing overlapping elongated tepals; note the numerous holes indicating the position of probable secretory cells; c) Flower in longitudinal section showing overlapping elongated tepals, remains of probable poorly developed stamens or staminodes and probable poorly developed carpels on the central conical gynoecial region of the receptacle (cut between orthoslices xz0510 and 0570); d) Flower in longitudinal section (comparable to c) showing overlapping tepals, poorly developed stamens or staminodes, and probable poorly developed carpels on the central conical gynoecial region of the receptacle; note the prominent cavities from secretory cells scattered through the tissues (cut between orthoslice xz0560 and 0575); e) Flower in transverse section showing overlapping tepals, poorly developed stamens or staminodes, and remains of probable poorly developed carpels (cut between orthoslices xy1160 and 1180). Scale bars = 1 mm (a), 500 µm (b–e). in Multiparted, Apocarpous Flowers From The Early Cretaceous Of Eastern North America And Portugal
Text-fig. 3. Scanning electron micrographs (a, b) and synchrotron radiation X-ray tomographic microscopy orthoslices (c–e) of flower of Lambertiflora elegans gen. et sp. nov. from the Early Cretaceous Puddledock locality, Virginia, USA (holotype, PP53796, Puddledock sample 082). a) Flower in lateral view showing long pedicel and overlapping elongated tepals; b) Detail of flower showing overlapping elongated tepals; note the numerous holes indicating the position of probable secretory cells; c) Flower in longitudinal section showing overlapping elongated tepals, remains of probable poorly developed stamens or staminodes and probable poorly developed carpels on the central conical gynoecial region of the receptacle (cut between orthoslices xz0510 and 0570); d) Flower in longitudinal section (comparable to c) showing overlapping tepals, poorly developed stamens or staminodes, and probable poorly developed carpels on the central conical gynoecial region of the receptacle; note the prominent cavities from secretory cells scattered through the tissues (cut between orthoslice xz0560 and 0575); e) Flower in transverse section showing overlapping tepals, poorly developed stamens or staminodes, and remains of probable poorly developed carpels (cut between orthoslices xy1160 and 1180). Scale bars = 1 mm (a), 500 µm (b–e).
Text-fig. 2. Synchrotron radiation X-ray tomographic microscopy volume renderings (a, b) and orthoslices (c–e) of Mugideiriflora portugallica gen. et sp. nov. from the Early Cretaceous Catefica locality, Portugal (holotype, S174254, Catefica sample 150). Yellow dots – stamens, red dots – carpels. a) Flower in lateral view showing the broad bases of the laminar tepals; b) Flower in longitudinal section showing the flat to slightly concave floral receptacle with a central conical gynoecial region (cut between orthoslices yz0800 and 1220); c) Flower in transverse section showing the numerous laminar tepals in several series and the stamens cut in the region of the poorly differentiated anthers; note cellular differences between outer (op) and inner (in) perianth parts, as well as and transverse sections of anthers, apparently with laterally to slightly dorsally placed pollen sacs (arrow heads) (cut at orthoslice xy0770); d) Flower in transverse section showing the numerous laminar tepals in several series, flattened rhomboidal stamen bases in several series, and poorly differentiated carpels (cut at orthoslice xy0820); e) Flower in transverse section showing the numerous laminar tepals in several series, flattened rhomboidal stamen bases in several series, and poorly differentiated carpels (cut at orthoslice xy0920); f) Flower in longitudinal section showing the shallowly concave floral receptacle with laminar tepals, stamens, and a central conical gynoecial region bearing poorly differentiated carpels (cut at orthoslice yz0900); g) Flower in longitudinal section perpendicular to that in (f) showing stamens and poorly differentiated carpels (cut at orthoslice xz1630). Scale bars = 1 mm (a, b), 500 µm (c–g). in Multiparted, Apocarpous Flowers From The Early Cretaceous Of Eastern North America And Portugal
Text-fig. 2. Synchrotron radiation X-ray tomographic microscopy volume renderings (a, b) and orthoslices (c–e) of Mugideiriflora portugallica gen. et sp. nov. from the Early Cretaceous Catefica locality, Portugal (holotype, S174254, Catefica sample 150). Yellow dots – stamens, red dots – carpels. a) Flower in lateral view showing the broad bases of the laminar tepals; b) Flower in longitudinal section showing the flat to slightly concave floral receptacle with a central conical gynoecial region (cut between orthoslices yz0800 and 1220); c) Flower in transverse section showing the numerous laminar tepals in several series and the stamens cut in the region of the poorly differentiated anthers; note cellular differences between outer (op) and inner (in) perianth parts, as well as and transverse sections of anthers, apparently with laterally to slightly dorsally placed pollen sacs (arrow heads) (cut at orthoslice xy0770); d) Flower in transverse section showing the numerous laminar tepals in several series, flattened rhomboidal stamen bases in several series, and poorly differentiated carpels (cut at orthoslice xy0820); e) Flower in transverse section showing the numerous laminar tepals in several series, flattened rhomboidal stamen bases in several series, and poorly differentiated carpels (cut at orthoslice xy0920); f) Flower in longitudinal section showing the shallowly concave floral receptacle with laminar tepals, stamens, and a central conical gynoecial region bearing poorly differentiated carpels (cut at orthoslice yz0900); g) Flower in longitudinal section perpendicular to that in (f) showing stamens and poorly differentiated carpels (cut at orthoslice xz1630). Scale bars = 1 mm (a, b), 500 µm (c–g).
Text-fig. 1. Scanning electron micrographs of Mugideiriflora portugallica gen. et sp. nov. from the Early Cretaceous Catefica locality, Portugal (holotype, S174254, Catefica sample 150). a) Flower in oblique lateral view showing numerous broad tepals, numerous inwardly curved stamens and the flat floral receptacle with a conical gynoecial region; b–c) Flower in two different oblique apical views showing numerous broad laminar tepals and inwardly curved stamens surrounding the carpels; note cellular differences between outer (op) and inner (in) perianth parts, as well as bases of anthers, apparently with laterally to slightly dorsally placed pollen sacs (arrow heads); d) Detail of flower showing a cluster of poorly differentiated carpels in the center surrounded by elongated stamens; note grooves in the dorsal surface of the stamens indicating the position of the pollen sacs; e) Detail of flower showing the broad bases of the laminar tepals, rhomboidal stamen bases and poorly differentiated carpels; f) Detail of flower showing inwardly arched stamens and poorly differentiated carpels. Scale bars = 1 mm (a–c), 200 µm (d–f). in Multiparted, Apocarpous Flowers From The Early Cretaceous Of Eastern North America And Portugal
Text-fig. 1. Scanning electron micrographs of Mugideiriflora portugallica gen. et sp. nov. from the Early Cretaceous Catefica locality, Portugal (holotype, S174254, Catefica sample 150). a) Flower in oblique lateral view showing numerous broad tepals, numerous inwardly curved stamens and the flat floral receptacle with a conical gynoecial region; b–c) Flower in two different oblique apical views showing numerous broad laminar tepals and inwardly curved stamens surrounding the carpels; note cellular differences between outer (op) and inner (in) perianth parts, as well as bases of anthers, apparently with laterally to slightly dorsally placed pollen sacs (arrow heads); d) Detail of flower showing a cluster of poorly differentiated carpels in the center surrounded by elongated stamens; note grooves in the dorsal surface of the stamens indicating the position of the pollen sacs; e) Detail of flower showing the broad bases of the laminar tepals, rhomboidal stamen bases and poorly differentiated carpels; f) Detail of flower showing inwardly arched stamens and poorly differentiated carpels. Scale bars = 1 mm (a–c), 200 µm (d–f).
Text-fig. 5. Scanning electron micrographs (d–g) and synchrotron radiation X-ray tomographic microscopy orthoslices (a–c) of flowers of Atlantocarpus virginiensis gen. et sp. nov. (a–d: holotype, PP43780, Puddledock sample 156), Atlantocarpus sp. from the Early Cretaceous Buarcos locality (e, f: S105025, Buarcos sample 244) and receptacle of Atlantocarpus? from the Early Cretaceous Vale de Água locality (g: S101300, Vale de Água sample 141). a) Flower in lateral view showing scar from a single bract (br), attachment scars of tepals (t) and stamens (st) on the expanded basal portion of elongated receptacle and young carpels; b) Flower in lateral view showing expanded basal portion of the elongated receptacle and young carpels; c) Flower in longitudinal section showing expanded basal portion of the elongated receptacle and young carpels; note the irregular, possibly expanded stigmatic region (arrow heads), (orthoslice yz0340); d) Flower in lateral view showing attachment scars of tepals (t) and stamens (st) on the expanded basal portion of elongated receptacle and young carpels with possible grooved stigmatic regions (arrow heads); e) Flower in lateral view showing expanded basal portion of elongated receptacle and young carpels; f) Detail of flower in (e) showing in Multiparted, Apocarpous Flowers From The Early Cretaceous Of Eastern North America And Portugal
Text-fig. 5. Scanning electron micrographs (d–g) and synchrotron radiation X-ray tomographic microscopy orthoslices (a–c) of flowers of Atlantocarpus virginiensis gen. et sp. nov. (a–d: holotype, PP43780, Puddledock sample 156), Atlantocarpus sp. from the Early Cretaceous Buarcos locality (e, f: S105025, Buarcos sample 244) and receptacle of Atlantocarpus? from the Early Cretaceous Vale de Água locality (g: S101300, Vale de Água sample 141). a) Flower in lateral view showing scar from a single bract (br), attachment scars of tepals (t) and stamens (st) on the expanded basal portion of elongated receptacle and young carpels; b) Flower in lateral view showing expanded basal portion of the elongated receptacle and young carpels; c) Flower in longitudinal section showing expanded basal portion of the elongated receptacle and young carpels; note the irregular, possibly expanded stigmatic region (arrow heads), (orthoslice yz0340); d) Flower in lateral view showing attachment scars of tepals (t) and stamens (st) on the expanded basal portion of elongated receptacle and young carpels with possible grooved stigmatic regions (arrow heads); e) Flower in lateral view showing expanded basal portion of elongated receptacle and young carpels; f) Detail of flower in (e) showing
Text-fig. 4. Synchrotron radiation X-ray tomographic microscopy orthoslices of flowers of Lambertiflora virginiense gen. et sp. nov. from the Early Cretaceous Puddledock locality, Virginia, USA (holotype, PP53796, Puddledock sample 081). White dots – tepals, yellow dots – stamens or staminodes, red dot – central conical gynoecial region. a) Flower in longitudinal section showing elongated overlapping tepals, remains of probable poorly developed stamens or staminodes and probable poorly developed carpels on the central conical gynoecial region of the receptacle (orthoslice yz0454); b) Flower in transverse section showing rhomboidal bases of 30 tepals, nine poorly developed stamens or staminodes, and the central poorly differentiated gynoecial region of the receptacle (orthoslice xy1160); c) Flower in transverse section at the level of the floral receptacle showing 30 tepals, nine of the poorly developed stamens or staminodes, and the central poorly differentiated gynoecial region of the receptacle (orthoslice xy1250). Scale bars = 250 µm (a–c). in Multiparted, Apocarpous Flowers From The Early Cretaceous Of Eastern North America And Portugal
Text-fig. 4. Synchrotron radiation X-ray tomographic microscopy orthoslices of flowers of Lambertiflora virginiense gen. et sp. nov. from the Early Cretaceous Puddledock locality, Virginia, USA (holotype, PP53796, Puddledock sample 081). White dots – tepals, yellow dots – stamens or staminodes, red dot – central conical gynoecial region. a) Flower in longitudinal section showing elongated overlapping tepals, remains of probable poorly developed stamens or staminodes and probable poorly developed carpels on the central conical gynoecial region of the receptacle (orthoslice yz0454); b) Flower in transverse section showing rhomboidal bases of 30 tepals, nine poorly developed stamens or staminodes, and the central poorly differentiated gynoecial region of the receptacle (orthoslice xy1160); c) Flower in transverse section at the level of the floral receptacle showing 30 tepals, nine of the poorly developed stamens or staminodes, and the central poorly differentiated gynoecial region of the receptacle (orthoslice xy1250). Scale bars = 250 µm (a–c).
Text-fig. 50. Scanning electron microscope (SEM) and synchrotron radiation X-ray tomographic microscopy (SRXTM) images of a flower and mature carpels of Reyanthus lusitanicus gen. et sp. nov.; Torres Vedras locality, Portugal. a) Holotype; multicarpellate flower showing numerous carpels surrounded by remains of the androecium and perianth; note the bract subtending the flower (arrowhead); b, c) Longitudinal sections perpendicular to section in (f) (b, SRXTM orthoslice xz0461) and (c, SRXTM cut voltex xz0540-0580) showing receptacle, carpels and remains of the androecium and perianth; note prominent cavities formed by the oil cells, subtending bract (arrow) and bract subtending fragmentary bud (arrowhead); d, e) Apical (d) and lateral (e) views of gynoecium showing laterally flattened carpels and dorsi-ventrally flattened stamen or staminode (* in e); f) Longitudinal section (SRXTM orthoslice yz0405) of gynoecium showing conical receptacle and carpels with densely spaced oil cells; g, h) Mature carpel of Reyanthus lusitanicus gen. et sp. nov. showing slightly curved form, rounded apex and base that tapers toward the attachment to the receptacle; i) Surface of carpel showing embedded oil cells; j) Transverse section through three carpels showing attachment of developing ovules near the ventral sutures and oil cells in the wall just below the surface (SRXTM cut voltex xy0770-0845). Specimens TV299-S136716 (holotype; a–f), TV299-S136717 (g–j). Scale bars 300 Μm (a–d, f–h), 150 Μm (e, j), 30 Μm (i). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 50. Scanning electron microscope (SEM) and synchrotron radiation X-ray tomographic microscopy (SRXTM) images of a flower and mature carpels of Reyanthus lusitanicus gen. et sp. nov.; Torres Vedras locality, Portugal. a) Holotype; multicarpellate flower showing numerous carpels surrounded by remains of the androecium and perianth; note the bract subtending the flower (arrowhead); b, c) Longitudinal sections perpendicular to section in (f) (b, SRXTM orthoslice xz0461) and (c, SRXTM cut voltex xz0540-0580) showing receptacle, carpels and remains of the androecium and perianth; note prominent cavities formed by the oil cells, subtending bract (arrow) and bract subtending fragmentary bud (arrowhead); d, e) Apical (d) and lateral (e) views of gynoecium showing laterally flattened carpels and dorsi-ventrally flattened stamen or staminode (* in e); f) Longitudinal section (SRXTM orthoslice yz0405) of gynoecium showing conical receptacle and carpels with densely spaced oil cells; g, h) Mature carpel of Reyanthus lusitanicus gen. et sp. nov. showing slightly curved form, rounded apex and base that tapers toward the attachment to the receptacle; i) Surface of carpel showing embedded oil cells; j) Transverse section through three carpels showing attachment of developing ovules near the ventral sutures and oil cells in the wall just below the surface (SRXTM cut voltex xy0770-0845). Specimens TV299-S136716 (holotype; a–f), TV299-S136717 (g–j). Scale bars 300 Μm (a–d, f–h), 150 Μm (e, j), 30 Μm (i).
ScienceDex guides
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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.