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729 results for “Asparagaceae”
FIGURE 1. A–B. Veltheimia capensis. A in Genetic diversity and species limits in Veltheimia (Asparagaceae: Scilloideae): insights from noncoding cpDNA sequence data
FIGURE 1. A–B. Veltheimia capensis. A. Flowering plant in situ. B. Plant in fruit, also showing the papery tunic at the exposed part of the bulb. C–F. Veltheimia bracteata. C. Yellow form in cultivation. D. Common colour form. E. Striated leaved form from Baviaanskloof. F. Whole plant showing the globose bulb and fleshy scales. Photographs: A, B: L. Mucina; C: J. Sampson; D: T. Dold; E: G. Schafer; F: N. Barker.
FIGURE 2 in Peliosanthes crassicoronata (Asparagaceae), a new species from southern Vietnam
FIGURE 2. Phylogenetic tree of Peliosanthes crassicoronata and its related species and genera based on maximum parsimony (MP) and maximum likelihood (ML) analyses. Numbers above branches are MP (left) and ML (right) bootstrap values.
FIGURE 1 in Peliosanthes crassicoronata (Asparagaceae), a new species from southern Vietnam
FIGURE 1. Habit and organs of Peliosanthes crassicoronata (NSK 964). Photos by K.S. Nguyen; layout by L. Averyanov and T. Maisak.
FIGURE 2 in Genetic diversity and species limits in Veltheimia (Asparagaceae: Scilloideae): insights from noncoding cpDNA sequence data
FIGURE 2. Specimen distribution of species of Veltheimia. Red dots = known localities of V. bracteata, blue triangles = known locations of V. capensis (based on data from the BODATSA database of the National Herbarium, South Africa, http://posa.sanbi.org/). The inserted frame shows the Bayesian Inference phylogeny of the combined chloroplast non-coding data set (numbers shown below the branches indicate Posterior Probability values, the number above the red branch is the parsimony Bootstrap Support value). The branch with the thick red line indicates the "bracteata clade". Numbers preceding sample names link to specimens listed in Table 1, and are also (where the locality is known) indicated on the map. The Median Joining Network (MJN) is shown overlaid on the distribution to indicate the location of the samples (and haplotypes) used in the MJN analysis. The numbers in parentheses next to the lines linking the haplotypes indicate the number of mutational differences between the haplotypes, and the solid black circle indicate an un-sampled or hypothesised missing haplotype.
Data from: Timing of rapid diversification and convergent origins of active pollination within Agavoideae (Asparagaceae)
PREMISE OF THE STUDY: Yucca species are ideal candidates for the study of coevolution due to the obligate mutualism they form with yucca moth pollinators (genera Tegeticula and Parategeticula). Yuccas are not the only species to exhibit a mutualism with yucca moths; the genus Hesperoyucca is pollinated by the California yucca moth (Tegeticula maculata). Relationships among yuccas, Hesperoyucca, and other members of subfamily Agavoideae are necessary to understand the evolution of this unique pollination syndrome. Here, we investigate evolutionary relationships of yuccas and closely related genera looking at the timing and origin of yucca moth pollination. METHODS: In this study, we sequenced the chloroplast genomes of 20 species in the subfamily Agavoideae (Asparagaceae) and three confamilial outgroup taxa to resolve intergeneric phylogenetic relationships of Agavoideae. We estimated divergence times using protein-coding genes from 67 chloroplast genomes sampled across monocots to determine the timing of the yucca moth pollination origin. KEY RESULTS: We confidently resolved intergeneric relationships in Agavoideae, demonstrating the origin of the yucca–yucca moth mutualism on two distinct lineages that diverged 27 million years ago. Comparisons of Yucca and Hesperoyucca divergence time to those of yucca moths (Tegeticula and Parategeticula, Prodoxidae) indicate overlapping ages for the origin of pollinating behavior in the moths and pollination by yucca moths in the two plant lineages. CONCLUSION: Whereas pollinating yucca moths have been shown to have a single origin within the Prodoxidae, there were independent acquisitions of active pollination on lineages leading to Yucca and Hesperoyucca within the Agavoideae.
FIGURE 2. A. Polygonatum yunnanense, Ogisu 94074 in Reinstatement of Polygonatum yunnanense (Asparagaceae)
FIGURE 2. A. Polygonatum yunnanense, Ogisu 94074, filament; B, Polygonatum nodosum, Probst CPC01.4.29.1, Shaanxi, Langao, Daba Shan [living collection], filament; C, Polygonatum cyrtonema, Chen Yi s.n., Sichuan [living collection], filament; bar = 1 mm.
FIGURE 1. Polygonatum yunnanense H in Reinstatement of Polygonatum yunnanense (Asparagaceae)
FIGURE 1. Polygonatum yunnanense H. Léveillé. Lectotype (E). Inset: peduncle bracts. With permission of the Keeper of the Royal Botanic Gardens Edinburgh. Image at; http://elmer.rbge.org.uk/bgbase/vherb/bgbasevherb.php?cfg=bgbase/vherb/ fulldetails.cfg&specimens_specimen__num=437600&queryRow=1
FIGURE 6 in Charybdis glaucophylla (Asparagaceae), a new species from Sardinia
FIGURE 6. Phenological features of Charybdis glaucophylla. A. Plant in rocky habitat (Pranu Sartu, Buggerru-Iglesias). B. Plant in sandy habitat (Scivu, Arbus). C. Habit in winter (foliation). D. Flowering (Cala Vinagra, Carloforte). E. Habit in late summer (Pranu Sartu, Buggerru-Iglesias). (Photos: G. Bacchetta).
FIGURE 5 in Charybdis glaucophylla (Asparagaceae), a new species from Sardinia
FIGURE 5. Comparison of phenological stages between Charybdis glaucophylla and other Charybdis taxa. Pale gray = foliation. Dark gray = flowering. White = dormancy. Dashed = fruiting.
FIGURE 4 in Charybdis glaucophylla (Asparagaceae), a new species from Sardinia
FIGURE 4. Distribution map of Charybdis glaucophylla populations. A. S. Pietro (Carloforte, CI). B. Pranu Sartu (Buggerru-Iglesias, CI). C. Scivu (Arbus, VS), D. Monte Linas (Gonnosfanadiga, VS).
FIGURE 3 in Charybdis glaucophylla (Asparagaceae), a new species from Sardinia
FIGURE 3. Chromosome complement (2n = 20) of Charybdis glaucophylla. Mitotic metaphase plate from S. Pietro (A) and Pranu Sartu (B); arrows indicates satellited chromosomes. C. Idiogram.
FIGURE 1 in Charybdis glaucophylla (Asparagaceae), a new species from Sardinia
FIGURE 1. Diagnostic features of Charybdis glaucophylla. A. Habit. B. Inflorescence. C. Leaves. D. Inflorescence detail. E. Fruits. Illustration by Salvatore Brullo based on Bacchetta & Pontecorvo s.n. (CAT).
FIGURE 2. A. Flower, side view. B. Flower, upper view. C. Perigon with stamens. D. Bud. E. Anther. F. Ovary. G. Stigma. H. Fruit. I in Charybdis glaucophylla (Asparagaceae), a new species from Sardinia
FIGURE 2. A. Flower, side view. B. Flower, upper view. C. Perigon with stamens. D. Bud. E. Anther. F. Ovary. G. Stigma. H. Fruit. I. Seed. Illustration by Salvatore Brullo based on Bacchetta & Pontecorvo s.n. (CAT).
FIGURE 1. Herreria glaziovii. A in Herreria glaziovii (Agavoideae, Asparagaceae)-typification and a new synonym
FIGURE 1. Herreria glaziovii. A. Detail of flowering branch. B. Leaf detail. C. Flower buds. D. Flower. E. External tepal. F. Detail of papillae on adaxial surface of tepal. G. Stamens. H. Gynoecium. I. Cross section of the ovary. J. Fruit. K. Seed. A–B based on D.Araujo 9297; C–I based on R.S.Pinheiro 130; J–K based on M.L.Fonseca 1957. Illustrator: Glória Gonçalves.
FIGURE 6 in Scilla vardaria (Asparagaceae subfamily Scilloideae): a threatened new species of Scilla L. from Northeast Turkey with a floral corona
FIGURE 6. Distribution of 1. Scilla vardaria; 2. Scilla luciliae (syn: Chionodoxa luciliae), Scilla siehei (syn: Chionodoxa siehei), Scilla sardensis (syn: Chionodoxa sardensis), Scilla forbesii (syn: Chionodoxa forbesii); 3. Scilla bifolia; 4. Puschkinia scilloides, Puschkinia peshmenii in Turkey.
FIGURE 4. A–F in Scilla vardaria (Asparagaceae subfamily Scilloideae): a threatened new species of Scilla L. from Northeast Turkey with a floral corona
FIGURE 4. A–F. Scilla vardaria (A. Habit. B. Bulb. C–D. Seeds. E. Seed surface. F. Mature fruits with seeds). G. Fruits of. 1. Scilla luciliae (syn: Chionodoxa luciliae). 2. Scilla vardaria. 3. Scilla bifolia. H–M. SEM photographs of seeds and pollen grains of Scilla vardaria (H–J. Seed and seed surface. K–M. Pollen grains).
FIGURE 5. A–C in Scilla vardaria (Asparagaceae subfamily Scilloideae): a threatened new species of Scilla L. from Northeast Turkey with a floral corona
FIGURE 5. A–C. Scilla bifolia (A. Habit, B. Flower, C, Stamens and pistil); D–F. Chionodoxa sardensis (synonym of Scilla sardensis) (D. Habit, E. Flower with a cone form stamen position, F. Stamen and pistil); G–J. Scilla vardaria (G. Habit, H. Flower and floral corona, J. Floral corona, stamen and pistil), K–M. Puschkinia scilloides (K. Habit, L. Flower and floral corona with corona lobes, M. Floral corona, stamen and pistil).
FIGURE 2 in Scilla vardaria (Asparagaceae subfamily Scilloideae): a threatened new species of Scilla L. from Northeast Turkey with a floral corona
FIGURE 2. Scilla vardaria (from type locality). A. Habit. B. Frontal view of flower. C. Dorsal view of flowers.
FIGURE 1. A–I in Scilla vardaria (Asparagaceae subfamily Scilloideae): a threatened new species of Scilla L. from Northeast Turkey with a floral corona
FIGURE 1. A–I. Scilla vardaria (from holotype). A. Habit; B–C. Frontal view of flower with floral corona structure. D. Dorsal view of flower with perigon tube. E. Floral corona structures F. Front view of flower with floral corona and pistil. G–H. Fruits. I–K. seeds with elaiosomes.
FIGURE 1. Dracaena rosulata—A, B in Dracaena rosulata (Asparagaceae)-a new species from D.R. Congo
FIGURE 1. Dracaena rosulata—A, B, habit; C, detail of lower leaf surface showing veins; D, detail of inflorescence with postfloral flower; E, F, flowers. All drawn from the holotype by E. Fischer.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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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.
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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
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