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339 results for “southeast Brazil”
FIGURE 4 in Two new species of Neomarica (Trimezieae, Iridoideae, Iridaceae) from Southeast Brazil
FIGURE 4. Species of Neomarica similar to N. mauroi A.Gil & M.C.E.Amaral: (A–C) Neomarica latifolia (Ravenna) A.Gil; (A) Habit (br = bract; rs = rhipidial spathes); (B) Flower; (C) Reproductive column; (D–F) Neomarica silvestris (Vellozo) Chukr; (D) Habit (br = bract; rs = rhipidial spathes); (E) Apex of the flowering stem (br = bract; rs = rhipidial spathes); (F) Reproductive column. Photos: (A, B, C) M. Peixoto; (D, E, F) A. Gil.
FIGURES 9–15. Chara foliolosa. 9. Habit. 10 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 9–15. Chara foliolosa. 9. Habit. 10. Monoecious plant with oogonium (red arrow) and antheridium (blue arrow) at the same branchlet. 11. Ecorticated basal segment of a branchlet. 12. Apical segment with one ecorticated cell and bract-cells around. 13. Granular aspect of the oospore wall under light microscope. 14. Overview of the oospore SEM. 15. Granular aspect of the oospore wall under SEM.
FIGURES 5–8. Chara braunii 5. Habit. 6 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 5–8. Chara braunii 5. Habit. 6. Gametangia conjoined. Oogonium (red arrow) and antheridium (blue arrow). 7. Thallus and branchlets ecorticated. The black arrow indicates stipulodes in one tier. 8. Apical segment of branchlet and two bract-cells around.
FIGURE 1 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 1. Map of Brazil with the location of sampling points. The area highlighted in gray corresponds to the study area.
FIGURE 3 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 3. ML Phylogenetic tree based on ITS2 sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS <70% and PP <0.70. Sequences in bold are the new sequences generated. The clades formed are: 1—C. braunii, 2—C. rusbyana, 3—C. haitensis, 4—C. guairensis, 5—C. foliolosa, 6—C. hydropitys.
FIGURE 2 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 2. ML Phylogenetic tree based on rbcL sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS <70% and PP <0.70. Sequences in bold are the new sequences generated. The clades formed are: 2—C. rusbyana, 3—C. haitensis, 4—C. guairensis, 5—C. foliolosa, 6—C. hydropitys.
FIGURE 4 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 4. ML Phylogenetic tree based on matK sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS <70% and PP <0.70. Sequences in bold are the new sequences generated. The clades formed are: 1—C. braunii, 2—C. rusbyana, 3—C. haitensis, 4—C. guairensis, 5—C. foliolosa, 6—C. hydropitys.
FIGURES 16–22. Chara guairensis. 16. Habit. 17 in Taxonomy and phylogeny of Chara (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 16–22. Chara guairensis. 16. Habit. 17. Monoecious plant with sejoined gametangia, with oogonium (red arrow) and antheridium (blue arrow) at the same branchlet. 18. Two ecorticated apical segments. 19. Basal segment of a branchlet and a oogonia. 20. Granular aspect of the osospore wall under light microscope. 21. Overview of the oospore under scanning electron microscopy (SEM). 22. Granular aspect of the oospore wall under SEM.
FIGURES 23–28. Nitella flagellifera. 23 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 23–28. Nitella flagellifera. 23. Primary node of a branchlet. The red arrow indicates a central secondary ray. 24. Fertile branchlet with gametangia at second (black arrow) and third (red arrow) nodes. 25. Dactyls 2-celled, elongated. Penultimate cell rounded at distal end. End cell conical and mucronate. 26. Oospore membrane with reticulate aspect under LM. 27. Overview of an oospore under SEM. 28. Oospore membrane with beaded imperfect reticulate to reticulate aspect under SEM.
FIGURES 17–22. Nitella elegans. 17. Upper whorls small and somewhat compacted. 18 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 17–22. Nitella elegans. 17. Upper whorls small and somewhat compacted. 18. Primary node of a branchlet. The red arrow indicates a central secondary ray. 19. Dactyls 2-celled. Penultimate cell cylindrical tapering distally towards the base of end cell. End cell conical, acuminate to mucronate. 20. Oospore membrane with granulate aspect under LM. 21. Overview of an oospore under SEM. 22. Oospore membrane with finely granulate aspect under SEM.
FIGURES 5–10. Nitella acuminata. 5 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 5–10. Nitella acuminata. 5. Upper whorls with loosely compacted heads (a diagnostic feature of N. subglomerata). 6. Compacted heads (a diagnostic feature of N. gollmeriana). 7. Dactyls 1-celled, abbreviated with acuminate apex (a diagnostic feature of N. gollmeriana). 8. Oospore membrane with finely granulate aspect under LM. 9. Overview of an oospore under SEM. 10. Oospore membrane with scabrous aspect under SEM.
FIGURES 11–16. Nitella axillaris. 11. Whorl with a in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 11–16. Nitella axillaris. 11. Whorl with a small, axillary, sessile, compacted head, at a node of the thallus. 12. Whorl with a long, axillary, stipitate and compacted head. 13. 2-furcated fertile branchlet of a head. The black and red arrows indicate, respectively, the primary and the secondary nodes. 14. Dactyls 2-celled, abbreviated, forming a crown. Penultimate cell tapering gradually towards the base of end cell. End cell conical, acute or acuminate. 15. Oospore membrane with reticulate aspect under LM. 16. Oospore membrane with beaded imperfect reticulate aspect under SEM.
FIGURE 4 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 4. Bayesian Phylogenetic tree based on ITS2 sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS <70% and PP <0.70; nodes with * indicate BS> 95% and PP>0.95 Sequences in bold are the new sequences generated in this study. Samples marked with "1" can be morphologically identified as N. acuminata (Wood & Imahori 1965); "2" with N. subglomerata (Wood & Imahori 1965).
FIGURES 29–34. Nitella microcarpa. 29. Upper whorls somewhat compacted. 30. Dactyls 2 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURES 29–34. Nitella microcarpa. 29. Upper whorls somewhat compacted. 30. Dactyls 2-celled, abbreviated, forming a crown. Penultimate cell rounded at distal end. End cell conical and acuminate. 31. Fertile branchlet with gametangia at second (black arrow) and third (red arrow) nodes. 32. Oospore membrane with reticulate aspect under LM. 33. Overview of an oospore under SEM. 34. Oospore membrane with beaded imperfect reticulate aspect under SEM.
FIGURE 2 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 2. Maximum likelihood Phylogenetic tree based on rbcL sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS <70% and PP <0.70; nodes with * indicate BS> 95% and PP>0.95 Sequences in bold are the new sequences generated in this study. Samples marked with "1" can be morphologically identified as N. acuminata (Wood & Imahori 1965); "2" with N. subglomerata (Wood & Imahori 1965).
FIGURE 1. A in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 1. A—Map of Brazil. The area highlighted in gray corresponds to the study region. B—Area of study with the sampling sites. The table indicates sampling sites for each species collected.
FIGURE 3 in Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
FIGURE 3. Bayesian Phylogenetic tree based on ITS1 sequences. The numbers associated with the nodes indicate the bootstrap values (BS) for maximum likelihood and posterior probability (PP) for Bayesian analysis; nodes without values indicate BS <70% and PP <0.70; nodes with * indicate BS> 95% and PP>0.95. Sequences in bold are the new sequences generated in this study.
FIGURE 9 in A new species of Thoropa Cope, 1865 (Anura, Cycloramphidae) from the Serra da Mantiqueira, Southeast Brazil
FIGURE 9. Distribution of 68 calls of three species of Thoropa along the first and second axes of a Principal Component Analysis (PCA) of four acoustic variables. Triangles represents T. petropolitana and squares represents T. lutzi. Circles represent populations of Thoropa bryomantis sp. n.: blue circle, Cataguases (type locality) and black circle, Antônio Prado de Minas.
FIGURE 10 in A new species of Thoropa Cope, 1865 (Anura, Cycloramphidae) from the Serra da Mantiqueira, Southeast Brazil
FIGURE 10. Geographic distribution of Thoropa bryomantis sp. n., T. lutzi and T. petropolitana: 1—Serra de Cubatão (Paranapiacaba); 2—Mangaratiba; 3, 4—Rio de Janeiro; 5—Tinguá; 6—Petrópolis; 7—Magé; 8—Teresópolis; 9—Nova Friburgo; 10—Cataguases (type locality); 11—Antônio Prado de Minas; 12—Parque Nacional do Caparaó; 13—Alegre; 14—Muniz Freire; and 15, 16—Santa Teresa. Abbreviations of Brazilian states are: SP = São Paulo, MG = Minas Gerais, RJ = Rio de Janeiro, and ES = Espírito Santo.
FIGURE 8 in A new species of Thoropa Cope, 1865 (Anura, Cycloramphidae) from the Serra da Mantiqueira, Southeast Brazil
FIGURE 8. Distribution of 59 male specimens of Thoropa along the first and second axes of a Principal Component Analysis (PCA) of 13 morphometric variables. Triangles represents T. petropolitana and squares represents T. lutzi. Circles represent populations of Thoropa bryomantis sp. n.: blue circle, Cataguases (type locality); black circle, Antônio Prado de Minas; green circle, Parque Nacional do Caparaó; gray circle, Santa Teresa.
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.