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Showing 54301 to 54350 of 59105 works
Land of giants: two new pachycaul Monstera (Araceae, Monsteroideae, Monstereae) from Panama
The genus Monstera is a diverse group of nomadic vines endemic to the Neotropics, with its greatest diversity concentrated in the montane forests of southern Central America. The …
The near infrared activity of Sagittarius A*
The meaning of my thesis was to obtain new insights about the supermassive Black Hole in the center of our Milky Way and its accretion flow. The non-thermal radio, X-ray, and near…
Taxonomic and nomenclatural history of Neckera (Bryophyta, Neckeraceae), including reinstatement of Rhystophyllum, the …
The complex taxonomic history of the moss genus Neckera, whose name was conserved at the Paris Congress in 1954, is reviewed. The issue of typifications of moss generic names by W…
Kathodolumineszenz in der Planetologie
Die Entwicklung eines hochempfindlichen mikrospektroskopischen Systems unter Verwendung von optimal abgestimmten Komponenten ermöglichte eine effiziente Aufnahme der zum Teil sehr…
[Neue Nr. 4424] Dransfeld / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
Thismia selangorensis (Thismiaceae): a new mitriform fairy lantern species from Selangor, Malaysia
Thismia selangorensis, a distinct mitriform species of the mycoheterotrophic genus Thismia, is described herein. It was first discovered in a tree hole on a riverbank in Taman Eko…
Reinstatement of the independent specific status of Camellia angustifolia, a tea plant (Camellia sect. Thea, Theaceae) …
Camellia angustifolia Hung T. Chang was published in 1981 and was treated as a synonym of C. sinensis var. pubilimba in 1992. Field investigation and herbarium research have revea…
Arbeitsberichte aus der Forschungsstation Bardai/Tibesti II
ULRICH BÖTTCHER: Die Akkumulationsterrassen im Ober- und Mittellauf des Enneri Misky (Südtibesti) ; HANS-GEORG MOLLE: Terrassenuntersudmngen im Gebiet des Enneri Zoumri (Tibestige…
Chronicle of a death foretold: Lepanthes nasariana (Orchidaceae, Pleurothallidinae), a newly described high-Andean orch…
Newly discovered species are increasingly found to be threatened. For some, their formal description may already foretell their extinction, a phenomenon we here term the “Nasar Ef…
New species and infrageneric names in Poa L. (Poaceae): transferring species of Agrostopoa Davidse, Soreng & P.M. Peter…
Based on DNA studies, the species of Agrostopoa Davidse, Soreng & P.M. Peterson and Raimundochloa A.M.Molina are here transferred to Poa L.: Poa barclayae, P. wallisii, P. woodii,…
Untersuchungen zur Quantifizierung der Grundwasserimmission von polyzyklischen aromatischen Kohlenwasserstoffen mithilf…
Kern der Arbeit bildete die Entwicklung einer Fluxmeter-Passivsammlereinheit für hydrophobe organische Substanzen im Grundwasser kontaminierter Standorte sowie deren Testung im Fe…
New taxa and nomenclatural changes in Bredia (Sonerileae, Melastomataceae)
A recent phylogenomic analysis has unveiled the first highly resolved phylogeny for the genus Bredia, clarifying long-standing uncertainties in species boundaries among taxonomica…
The practice of responsible research and innovation in “climate engineering”
Sunlight reflection and carbon removal proposals for “climate engineering” (CE) confront governance challenges that many emerging technologies face: their futures are uncertain, a…
Solving the riddle of Aspidium ameristoneuron Fée, a misunderstood Cuban or Mexican species of Ctenitis (Dryopteridacea…
The holotype of Aspidium ameristoneuron, the correct application of which has long been in doubt, has been identified in the herbarium RB in Rio de Janeiro. It was found to have b…
Spätglaziale bis frühholozäne Steppenbodenbildung und Klimaentwicklung im südlichen Rheinhessischen Tafel- und Hügelland
Unter den reliktischen Steppenböden der postglazialen Wärmezeiten kann in Südrheinhessen ein fossiler Boden beobachtet werden. Er ist bis zu 100 cm mächtig und stellt einen Steppe…
Phylogenetic analysis suggests early divergence followed by convergent morphological evolution in the Silene sections O…
The genus Silene presents significant taxonomic challenges, particularly for groups such as S. sect. Odontopetalae and the monotypic S. sect. Sordidae. This study investigates the…
Segment‐Scale Seismicity of the Ultraslow Spreading Knipovich Ridge
Ultraslow spreading ridges form the slowest divergent plate boundaries and exhibit distinct spreading processes in volcanically active magmatic sections and intervening amagmatic …
Telipogon rojasiae (Orchidaceae, Oncidiinae), a new species from relict forests on the western slopes of the northern P…
Telipogon rojasiae, from the western Andean slopes of northern Peru, is described as a new species. Telipogon rojasiae is similar to Telipogon montufarianus, which is only known f…
Lectotypification of Salvia bogotensis Benth. (Lamiaceae)
The species Salvia bogotensis (sect. Angulatae) was not adequately typified at the time of its description. The original material used by the author of the species corresponds to …
Gastrochilus jiuzhaigouensis (Orchidaceae, Epidendroideae), a new epiphytic orchid from Jiuzhaigou World Heritage Site,…
Gastrochilus jiuzhaigouensis (Orchidaceae), a new orchid species epiphytic on tree branches on the bank of an alpine lake at the famous Jiuzhaigou National Park in China, is descr…
Application of RAPD markers for Cuscuta species identification and biodiversity
Cuscuta species (dodders) are parasitic plants that harm both native and cultivated flora, presenting significant ecological and economic challenges. This study employs random amp…
A reappraisal of Thunberg’s spotted lily Lilium maculatum Thunb. and recognition of the elegant lily Lilium × elegans T…
Thunberg encountered nine species of Lilium during his visit to Japan in 1776. Of these, L. lancifolium Thunb., L. longiflorum Thunb., L. maculatum Thunb., and L. speciosum Thunb.…
Pollen morphology and species differentiation in selected species of Inuleae (Asteraceae)
The tribe Inuleae is widely distributed within Asteraceae and exhibits considerable morphological variation, which complicates species classification. Pollen morphology provides r…
Rezentes Spannungsfeld und Seismizität des baltischen Raumes und angrenzender Gebiete - ein Ausdruck aktueller geodynam…
[…] Zur Einschätzung neotektonischer Prozesse in relativ stabilen Kontinentalblöcken können Daten zum krustalen Spannungsfeld sowie zur Seismizität wichtige Beiträge liefern. Für …
Ligusticopsis shaniana, a new combination separated from Peucedanum sensu lato (Apiaceae) on the basis of morphological…
The genus Peucedanum sensu lato is one of the most taxonomically difficult taxa within Apiaceae, including many medically and economically valuable plants. Although previous studi…
Porroglossum hildeae sp. nov. (Orchidaceae), a new species from the threatened cloud forests of northwestern Ecuador
A new species of Porroglossum (Orchidaceae) is described and illustrated from the cloud forests of northwestern Ecuador. Porroglossum hildeae sp. nov. is morphologically similar t…
A case study on Anemone hortensis L. (Ranunculaceae): the misapplication of A. pavonina Lam. and A. fulgens (DC) Rchb. …
Anemone hortensis L. was typified on a specimen with red flowers and obovate tepals cultivated in the Netherlands, originally introduced from the eastern Mediterranean. This red-f…
Konzeption des geplanten Berliner Sonderforschungsbereiches "Geowissenschaftliche Probleme arider Gebiete"
Die geowissenschaftliche Problematik der Trockengebiete beruht vor allem auf dem Konflikt, der sich aus der lebensfeindlichen Klimasituation und dem geowissenschaftlichen Gesamtpo…
Ceratostema limonensis (Ericaceae), a new species from the Province of Morona-Santiago, Ecuador
A new species of Ceratostema (Vaccinieae) from south-eastern Ecuador is here described and illustrated. Ceratostema limonensis is distinguished by the singular, subflexuous young …
Resurrection of Cyrtandra kipahuluensis (Gesneriaceae)
Recent fieldwork has revealed multiple populations in several localities that correspond morphologically to the type of Cyrtandra kipahuluensis H. St. John, collected by C.N. Forb…
Aster xuelinii (Astereae, Asteraceae), a new species growing on moist rocks from Gansu Province, China
Aster xuelinii, a new species from Gansu Province, China, is described and illustrated based on morphological and phylogenetic evidence. The new species is superficially similar t…
Plastid genome variation with phylogenetic implications for the Helichrysum-Anaphalis-Pseudognaphalium (HAP) of the tri…
As the largest lineage in the tribe Gnaphalieae of Asteraceae, phylogenetic relationships within the Helichrysum-Anaphalis-Pseudognaphalium (HAP) remain poorly resolved. In this s…
[Neue Nr. 4735] Bibra [Nebra (Unstrut)] / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
Entwicklung eines Laser-Seitenband-Spektrometers für extrem breitbandige Frequenzanalyse
Sowohl in der Radioastronomie als auch in der Atmosphärenforschung gibt es einen Bedarf für breitbandige Spektrometer mit einer Bandbreite von bis zu 10 GHz und einer moderaten Au…
Gap analysis of knowledge about the microstructure of Impatiens Riv. ex L. (Balsaminaceae) seeds using SEM techniques
We conducted a literature review on the taxonomic importance of seed micromorphology in the genus Impatiens Riv. ex L. (Balsaminaceae), focusing on studies using scanning electron…
Taxonomic revision of Polygalaceae (Fabales) in Taiwan
Several morphological and palynological characteristics—including petiole length, number of anthers, calyx persistence, presence of petaloid sepals, morphology of keel appendages,…
Site Dependence of Fluvial Incision Rate Scaling With Timescale
Global measurements of incision rate typically show a negative scaling with the timescale over which they were averaged, a phenomenon referred to as the “Sadler effect.” This time…
Lygodium palmatum subsp. puskariorum (Lygodiaceae), a new subspecies from the eastern USA
Lygodium palmatum (Bernh.) Sw. subsp. puskariorum Metzgar, subsp. nov. (Lygodiaceae) is described from the eastern USA. This taxon differs from Lygodium palmatum subsp. palmatum b…
A taxonomic revision of Garcinia section Discostigma (Clusiaceae) in Thailand
Garcinia section Discostigma (Clusiaceae) is revised for Thailand with four species: G. merguensis, G. minutiflora, G. rostrata, and G. santisukiana. Morphological descriptions, i…
Reinstatement of Hellwigia Warb. (Zingiberaceae) and its molecular and morphological delimitation
The currently polyphyletic genus Alpinia Roxb. (Zingiberaceae) has over 260 species widely spread through subtropical and tropical Asia and a complex taxonomic history. This study…
Floristic diversity and assessment of the conservation status of Togo’s plant species
Regular updates of floristic lists are essential for assessing the state of flora, identifying threatened species, and guiding conservation actions. This study aims to provide a c…
An Adaptive Hybrid Vertical Equilibrium/Full‐Dimensional Model for Compositional Multiphase Flow
Efficient compositional models are required to simulate underground gas storage in porous formations where, for example, gas quality (such as purity) and loss of gas due to dissol…
Large Language Models can extract morphological data from taxonomic descriptions, but their stochastic nature makes aut…
Morphological data are critical for taxonomy, evolutionary biology, ecology, and species identification. However, no widely used central database for morphological data exists as …
An updated checklist of vascular plants of Myanmar
Myanmar is one of the Southeast Asian countries where biodiversity richness is very high as well as under various anthropogenic threats. Its broad latitudinal range, heterogeneous…
Reticulation within Sporobolus: recognition of two new sections, Acinifolii and Thellungia, and a new genus, Hyalolemma…
We present a molecular DNA phylogeny utilizing four plastid regions (rps16–trnK spacer, rps16 intron, rpl32–trnL spacer, ndhA intron) and the nuclear ribosomal internal transcribe…
A new species of Ceratostema (Ericaceae) with nearly tubular leaves from the Cordillera del Cóndor, Ecuador
A new species of Ceratostema from the Cordillera del Cóndor in Ecuador is described and illustrated. Ceratostema revoluta is distinguished by its nearly tubular leaves with revolu…
An overlooked morphological feature in the genus Rhodospatha (Araceae, Monsteroideae, Anepsiadeae) revealed through int…
A recent floristic survey in the Pacific slope of the Talamanca Mountain (Costa Rica), has revealed a new species of Rhodospatha, characterised by a bracteolate inflorescence. We …
Endemism patterns of the vascular flora of Lebanon: A dynamic checklist
Given its high concentration of rare and endangered plant species, Lebanon is recognized as a biodiversity meso-hotspot within the Levant. This study presents a list of vascular p…
Three-Dimensional Flow Above River Bedforms: Insights From Numerical Modeling of a Natural Dune Field (Río Paraná, Arge…
Bedforms are ubiquitous features in rivers and shallow seas, as mobile sediment is transported by flowing water. The mutual interaction of hydrodynamics and bedform has been widel…
Hypericum shunhuangshanense (Hypericaceae), a new species from Hunan, China
Hypericum shunhuangshanense, a new species of Hypericaceae from the Shunhuangshan National Nature Reserve in Hunan Province, China, is described and illustrated, based on morpholo…
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