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.
14
datasets available to search
ShareScore release 0.9.0
Dataset results
14 results for “Dichaea”
Data from: Molecular phylogenetics and the evolution of fruit and leaf morphology of Dichaea (Orchidaceae: Zygopetalinae)
BACKGROUND AND AIMS: The orchid genus Dichaea, with over 100 species found throughout the neotropics, is easily recognized by distichous leaves on long stems without pseudobulbs and flowers with infrastigmatic ligules. The genus has previously been divided into four sections based primarily on presence of ovary bristles and a foliar abscission layer. The aim of this work is to use DNA sequence data to estimate phylogenetic relationships within Dichaea and map the distribution of major morphological characters that have been used to delimit subgenera/sections. METHODS: Sequence data for the nuclear ribosomal internal transcribed spacers and plastid matK, trnL intron, trnL-F spacer and ycf1 for 67 ingroup and seven outgroup operational taxonomic units were used to estimate phylogenetic relationships within Dichaea. Taxa from each of the four sections were sampled, with the greatest representation from section Dichaea, the most diverse and taxonomically puzzling group. KEY RESULTS: Molecular data and morphology support monophyly of Dichaea. Results indicate that section Dichaeopsis is polyphyletic and based on symplesiomorphies, including deciduous leaves and smooth ovaries that are widespread in Zygopetalinae. There are at least three well-supported clades within section Dichaeopsis. Section Pseudodichaea is monophyletic and defined by setose ovaries and leaves with an abscission layer. Sections Dichaea and Dichaeastrum are monophyletic and defined by pendent habit and persistent leaves. Section Dichaeastrum, distinguished from section Dichaea primarily by a glabrous ovary, is potentially polyphyletic. CONCLUSIONS: The leaf abscission layer was lost once, occurring only in the derived sections Dichaea and Dichaeastrum. The setose fruit is a more homoplasious character with several losses and gains within the genus. We propose an informal division of the genus based upon five well-supported clades.
FIGURE. Vascular epiphytes representatives of the Augusto Ruschi Biological Reserve, Santa Teresa, Espírito Santo, Brazil. a–o Orchidaceae: a Barbosella gardneri. b Bifrenaria clavigera. c Bifrenaria mellicolor. d Campylocentrum ornithorrhynchum. e Cattleya harpophylla. f Cirrhaea nasuta. g Comparettia coccinea. h Crocodeilanthe spiralis. i Dichaea cogniauxiana. j Elleanthus linifolius. k Encyclia patens. l Epidendrum armeniacum. m Epidendrum carpophorum. n Epidendrum henschenii. o Epidendrum proligerum. in Augusto Ruschi Biological Reserve vascular epiphytes: a hotspot in the mountains of the Atlantic Forest of Southeastern Brazil
FIGURE. Vascular epiphytes representatives of the Augusto Ruschi Biological Reserve, Santa Teresa, Espírito Santo, Brazil. a–o Orchidaceae: a Barbosella gardneri. b Bifrenaria clavigera. c Bifrenaria mellicolor. d Campylocentrum ornithorrhynchum. e Cattleya harpophylla. f Cirrhaea nasuta. g Comparettia coccinea. h Crocodeilanthe spiralis. i Dichaea cogniauxiana. j Elleanthus linifolius. k Encyclia patens. l Epidendrum armeniacum. m Epidendrum carpophorum. n Epidendrum henschenii. o Epidendrum proligerum.
FIGURE. Orchidaceae from Honduras. A. Dichaea neglecta. B. D. panamensis. C. D. squarrosa. D. D. suaveolens. E. D. trichocarpa. F. Dichromanthus aurantiacus. G. Dinema polybulbon. H. Domingoa purpurea. I. Dryadella fuchsii. J. Elleanthus cynarocephallus. K. E. tonduzii. L. Encyclia alata. M. E. bractescens. N. E. ceratistes. O. E. chloroleuca. P. E in An Updated Checklist of the Orchidaceae of Honduras
FIGURE. Orchidaceae from Honduras. A. Dichaea neglecta. B. D. panamensis. C. D. squarrosa. D. D. suaveolens. E. D. trichocarpa. F. Dichromanthus aurantiacus. G. Dinema polybulbon. H. Domingoa purpurea. I. Dryadella fuchsii. J. Elleanthus cynarocephallus. K. E. tonduzii. L. Encyclia alata. M. E. bractescens. N. E. ceratistes. O. E. chloroleuca. P. E. cordigera. Photographs by the authors.
FIGURE. Orchidaceae from Honduras. A. Chysis laevis. B. Clowesia russelliana. C. Coelia densiflora. D. Cohniella ascendens. E. C. brachyphylla. F. Comparettia falcata. G. Coryanthes picturata. H. Corymborkis forcipigera. I. Cranichis revoluta. J. Cuitlauzina pulchella. K. Cyclopogon comosus. L. C. luteo-albus. M. Cyrtopodium macrobulbon. N. Dendrophylax porrectus. O. Dichaea glauca. P. D in An Updated Checklist of the Orchidaceae of Honduras
FIGURE. Orchidaceae from Honduras. A. Chysis laevis. B. Clowesia russelliana. C. Coelia densiflora. D. Cohniella ascendens. E. C. brachyphylla. F. Comparettia falcata. G. Coryanthes picturata. H. Corymborkis forcipigera. I. Cranichis revoluta. J. Cuitlauzina pulchella. K. Cyclopogon comosus. L. C. luteo-albus. M. Cyrtopodium macrobulbon. N. Dendrophylax porrectus. O. Dichaea glauca. P. D. hystricina. Photographs by the authors, except G (R. Gallardo) and H (P. House).
FIGURE 1. Dichaea saraca-taquerensis. A. Habit. B. Flower. C. External floral bract. D. Internal floral bract. E. Perianth. F. Lip. G–I. Column. J–K. Anther cap. L–M in Notes on taxonomy, distribution and conservation of Dichaea species (Orchidaceae: Zygopetalinae) in Brazilian Amazon
FIGURE 1. Dichaea saraca-taquerensis. A. Habit. B. Flower. C. External floral bract. D. Internal floral bract. E. Perianth. F. Lip. G–I. Column. J–K. Anther cap. L–M. Pollinarium. Photographs by A.H. Krahl.
FIGURE 4 in Notes on taxonomy, distribution and conservation of Dichaea species (Orchidaceae: Zygopetalinae) in Brazilian Amazon
FIGURE 4. Geographic distribution map of Dichaea fusca in the Brazilian Amazon with our new records.
FIGURE 3. Dichaea fusca. A. Habit. B. Flower. C. External floral bract. D. Internal floral bract. E. Perianth. F. Lip. G–I. Column. J–K. Anther cap. L–M in Notes on taxonomy, distribution and conservation of Dichaea species (Orchidaceae: Zygopetalinae) in Brazilian Amazon
FIGURE 3. Dichaea fusca. A. Habit. B. Flower. C. External floral bract. D. Internal floral bract. E. Perianth. F. Lip. G–I. Column. J–K. Anther cap. L–M. Pollinarium. Photographs by A.H. Krahl.
FIGURE. Monocots. A. Clowesia thylaciochila, B. Cuitlauzina pendula, C. Dichaea glauca, D. Dinema polybulbon, E. Domingoa kienastii, F. Encyclia hanburyi, G. Encyclia bractescens, H in Mexican Vascular Epiphytes: Richness and Distribution
FIGURE. Monocots. A. Clowesia thylaciochila, B. Cuitlauzina pendula, C. Dichaea glauca, D. Dinema polybulbon, E. Domingoa kienastii, F. Encyclia hanburyi, G. Encyclia bractescens, H. Encyclia parviflora. (Photographs by Adolfo Espejo-Serna).
FIGURE 3. Dichaea andina. A. Habit. B. Inflorescence. C in A New Species Of Dichaea (Orchidaceae: Zygopetalinae) From The Andes Of Colombia
FIGURE 3. Dichaea andina. A. Habit. B. Inflorescence. C. Ovary, column and lip, lateral view. D. Floral bract and bracteole. E. Column in lateral and ventral views. F. Perianth. G. Fruit, entire and cross section. H. Anther cap and pollinarium in dorsal and ventral views. Photographs by Y.A. Alomía based on the plant that served as type (Y.A. Alomía 216-ANDES).
FIGURE 2. Dichaea andina. A in A New Species Of Dichaea (Orchidaceae: Zygopetalinae) From The Andes Of Colombia
FIGURE 2. Dichaea andina. A. Plant in situ. B. Flower emerging below foliage. C. Flower recently pollinated. D. Muricate fruit. Photographs by Y.A. Alomía.
FIGURE 1 in A New Species Of Dichaea (Orchidaceae: Zygopetalinae) From The Andes Of Colombia
FIGURE 1. Known population of Dichaea andina. Bosque de San Antonio (BSA), Bosque El Aguapante (BAP), Parque Nacional Natural Cueva de los Guácharos (GUA), Reserva Comunitaria Cerro el Inglés (RCI).
Data from: Molecular phylogenetics and the evolution of fruit and leaf morphology of Dichaea (Orchidaceae: Zygopetalinae)
Open the record for dataset details and reuse information.
FIGURE 2 in Notes on taxonomy, distribution and conservation of Dichaea species (Orchidaceae: Zygopetalinae) in Brazilian Amazon
FIGURE 2. Geographic distribution map of Dichaea saraca-taquerensis.
FIGURE 4. Dichaea andina. A. Habit. B. Inflorescence. C in A New Species Of Dichaea (Orchidaceae: Zygopetalinae) From The Andes Of Colombia
FIGURE 4. Dichaea andina. A. Habit. B. Inflorescence. C. Ovary, column and lip, lateral view. D. Floral bract and bracteole. E. Column in lateral and ventral views. F. Dissected perianth. G. Fruit entire and cross section. H. Anther cap and pollinarium in dorsal and ventral views. Drawing by Y.A. Alomía based on the plant that served as type (Y.A. Alomía 216-ANDES).
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.