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Showing 54351 to 54400 of 59105 works
Typische Böden und Bodengesellschaften der Extremwüste Südwest-Ägyptens
Ziel dieser Arbeit war es» die Kenntnisse Ober Böden In der ägyptischen Sahara zu erweitern und einen Beitrag zur Bodenentwicklung unter extrem ariden Klimabedingungen zu leisten.…
Towards a monophyletic Melicope (Rutaceae): Phylogenetic placement of Dutailliopsis and other New Caledonian genera, an…
Dutailliopsis (Rutaceae) is a scarcely known monotypic genus from New Caledonia. It is one of the few genera of Rutaceae that has never been included in a molecular phylogenetic s…
Aquatic macrophytes of Angola: a preliminary verified checklist
Aquatic macrophytes are photosynthetic macroscopic organisms that grow permanently or periodically submerged or floating on the surface of the water. The aim of this study is to c…
Lappula monocarpa, a new synonym of Lappula tenuis (Boraginaceae)
Lappula monocarpa is currently the sole described species within the genus Lappula characterized by the development of a single nutlet per fruit. However, since its initial public…
Paphiopedilum motuoense (Orchidaceae, Cypripedioideae), a new species from Motuo, Xizang, China
Paphiopedilum motuoense, a newly discovered orchid from Motuo County, Xizang, China, is described and illustrated. Paphiopedilum motuoense can be distinguished from the related Pa…
Das Seminar zu Moor und Torf in Zeven
DFG, SUB Göttingen, DGMT
Reinstatement of Memecylon elegantulum (Melastomataceae) and recircumscription of Memecylon rostratum, two species ende…
Memecylon elegantulum Thwaites, a heterotypic synonym of M. rostratum Thwaites, is re-instated based on recent collections and field observations. The two species differ mainly in…
Rhizophora stylosa (Rhizophoraceae) newly recorded from Thailand: lectotypification, leaf anatomy, and pollen morphology
Rhizophora stylosa (Rhizophoraceae), previously known from India (Andaman and Nicobar Islands), China to Indo-China, and the Pacific Island, is reported here as a new record from …
Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y.Ling (Astereae, Asteraceae), with an…
Recent molecular phylogenetic studies have demonstrated extensive paraphyly of Aster ser. Albescentes Y.Ling. This woody-based shrubby group is both morphologically and molecularl…
Camellia yangii (Theaceae), a new species of tea plants (Camellia section Thea)
Camellia sect. Thea contains plants of beverage sources with huge profits. Their natural germplasm resources have yet to be fully explored. Here, morphological, phenological and p…
Urban pluvial flood adaptation: Results of a household survey across four German municipalities
In recent years, German cities were heavily impacted by pluvial flooding and related damage is projected to increase due to climate change and urbanisation. It is important to ask…
Fragilariforma meireana, a new araphid diatom species (Bacillariophyta) producing internal valves from Flanders
During a biodiversity survey around the historic Flemish town of Damme, a large Fragilariforma taxon was observed in a small pond that could not be identified using the currently …
Systematics and floral micromorphology of core Aster and its related groups (Asteraceae, Astereae): Taxonomic significa…
Four floral microcharacters were examined within 40 species of core Aster and its related groups in the genus Aster L. (Asteraceae, Astereae). These microcharacters included corol…
Systematics, natural history, and conservation of Erica (Ericaceae)
Worldwide, many tens of thousands of plant species are threatened with extinction in the wild. Those that are naturally rare or have narrow distributions are particularly vulnerab…
Rubus semiplenus (Rosaceae), a new species with naturally occurring semi-double flowers from Hunan, China
The semi-double (semiplenus) floral trait is highly valued in the field of horticulture, yet it remains exceptionally rare in wild plants. Rubus semiplenus, a new species with nat…
Accumulation of germanium (Ge) in plant tissues of grasses is not solely driven by its incorporation in phytoliths
Ge/Si ratios of plant phytoliths have been widely used to trace biogeochemical cycling of Si. However, until recently, information on how much of the Ge and Si transferred from so…
Synopsis of the genus Elymus (Poaceae) in Uzbekistan (Middle Asia) with a description of Elymus uzbekistanicus a new sp…
A synopsis of the genus Elymus in Uzbekistan, including a description of the genus and species, a key to species identification, illustrations, geographical distribution, and habi…
Tephra Deposition and Bonding With Reactive Oxides Enhances Burial of Organic Carbon in the Bering Sea
Preservation of organic carbon (OC) in marine sediments exerts a major control on the cycling of carbon in the Earth system. In these marine environments, OC preservation may be e…
Cardamine mangshanensis, a new species of Brassicaceae from limestone landform in Southern Hunan, China
Cardamine mangshanensis, a new species, is described and illustrated from the limestone landform in southern Hunan, China. The new species is similar to C. macrophylla, but differ…
Zur Gliederung, Bildung und Altersstellung des Kalksteinschutts am Trauf der westlichen Schwäbischen Alb
Nach der Größe der Gesteinsstücke und dem Gehalt an Feinbestandteilen sind die Schuttmassen am Trauf der westlichen Alb drei verschiedenen Schuttarten zuzuordnen: dem „Schutt der …
Heathers (Erica, Ericaceae) of Madagascar: taxonomy, evolution, ecology and uses
The plant genus Erica L. (heathers; anjavidy in Malagasy) has 35 recognised species in Madagascar, but there has not been a taxonomic revision since 1927 and there are few identif…
Geologisches Jahrbuch Hessen
DFG, SUB Göttingen
Starkregenereignis am 01./02. August 2024 in Trendelburg-Gottsbüren: Katastrophale Überflutung und der Abgang von Oberf…
In der Nacht vom 01. auf den 02. August 2024 entwickelte sich über dem nördlichen Landkreis Kassel im Raum Trendelburg und Hofgeismar eine ungewöhnlich große Starkregenzelle. In…
Wie können physiologische Wirkungen von Huminstoffen ausgelöst werden?
Eine gewöhnlich hilfreiche Ursache-Wirkung-Beziehung als heuristisches Prinzip zur Interpretation biochemischer Wirkungen wird bei Huminstoffen seltener zur Anwendung kommen, da d…
Cardamine tangutorum O.E.Schulz (Brassicaceae), a new synonym of Cardamine macrophylla Willd
Cardamine macrophylla Willd. and Cardamine tangutorum O.E.Schulz are both widely distributed plants of the genus Cardamine L. in East Asia, and they are regarded as the same speci…
Trennbruchversagen von Festgesteinen unter triaxialen Spannungsbedingungen
Im Konturbereich einer untertägigen Auffahrung kommt dem Spannungsregime Extension aufgrund der Reduzierung des Spannungsanteils normal zur freien Oberfläche besondere Bedeutung z…
Beiträge der Fernerkundung zur Lösung von Umweltproblemen in der Oderregion
[…] Die Untersuchung beschreibt die ingenieurgeologischen und hydrogeologischen Rahmenbedingungen für geplante Bauwerks- und Infrastrukturmaßnahmen im Bereich des Müggelspree-Löck…
Lilium brunneum (Liliaceae): a newly discovered species in north-western Yunnan, China
Lilium brunneum represents a newly discovered and described lily species with a limited distribution in isolated alpine regions of north-western Yunnan, China. The recognition of …
Neotectonics of a Segment of the San Andreas Fault, Southern California (USA)
Die San Andreas-Verwerfung zwischen Valyermo und Wrightwood ist durch eine Hauptverwerfungslinie charakterisiert, die durch Verwerfungskliffe und -senken und tektonische Depressio…
Resolving a nearly 95-year-old enigma: Transfer of the little-known Japanese moss Arctoa schistioides to Kiaeria falcat…
Taxonomic uncertainties regarding rare species often impede effective biodiversity conservation. One such taxonomic uncertainty is the 95-year-old mystery surrounding Arctoa schis…
Taxonomic treatment on Garcinia sopsopia (Section Brindonia, Clusiaceae) in Thailand, with a new synonym and three lect…
Garcinia sopsopia belongs to the section Brindonia in the family Clusiaceae. The fruits, young shoots and leaves are edible and have a sour taste. Morphological description and il…
Typification of names of Weinmannia (Cunoniaceae) of species described by José Cuatrecasas from Colombian collections
We propose 18 new lectotype designations for names of Weinmannia, five of which are second-step typifications involving four inadvertent first-step lectotype designations, and 13 …
Carex yankouensis, a new species of Cyperaceae from limestone landform in northern Guangdong, China
Carex yankouensis, a new species of Cyperaceae (Carex section Rhomboidales) from the limestone landform in northern Guangdong, China is described and illustrated. The new species …
Lösse und Paläoböden der letzten Kaltzeit im mediterranen Raum
Vorkommen und Aufbau von Lößprofilen des mediterranen Raumes werden besprochen und als Klimaindikatoren der letzten Kaltzeit interpretiert. Mangels sicherer stratigraphischer Mark…
Aristolochia zhuhaiensis, a self-supporting new species of Aristolochiaceae from Guangdong, China and notes on Aristolo…
A self-supporting new species of Aristolochiaceae, Aristolochia zhuhaiensis Y.Fan Wang & Z.R.Guo, is described and illustrated from Zhuhai City, Guangdong Province, China. Morphol…
A new species of Pleurothallis (Pleurothallidinae, Orchidaceae) from the historic sanctuary of Machupicchu, Perú
Pleurothallis machupicchuensis, a new species from Cusco, Perú, is described and illustrated. Information regarding its distribution, habitat, and phenology is provided. Morpholog…
Analyse der variszisch-apenninischen Deformationsgeschichte des paläozoischen Basements der Apuaner Alpen (Toskana, Ita…
Die Apuaner Alpen bilden im Intembereich des Nordapennins ein großes tektonisches Fenster, das einen umfassenden Einblick vor allem in die tieferen Einheiten dieses Gebirges gewäh…
Broad-ranged, highly disjunct, locally rare and severely endangered: the challenging risk assessment and a global conse…
The distribution range of Erica sicula Guss. sensu lato spans the central and eastern Mediterranean Basin, but shows a significantly fragmented pattern, and its populations are lo…
Pternopetalum shunhuangensis (Apiaceae), a new species from Hunan, China
Based on field investigations, morphological and molecular systematic studies, a new species, Pternopetalum shunhuangensis (Apiaceae) from Hunan Province, China is described. Diag…
Statistical relevance of meteorological ambient conditions and cell attributes for nowcasting the life cycle of convect…
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">The usually short lifetime of convective stor…
Impact of robot antenna calibration on dual-frequency smartphone-based high-accuracy positioning: a case study using th…
The access to Android-based Global Navigation Satellite Systems (GNSS) raw measurements has become a strong motivation to investigate the feasibility of smartphone-based positioni…
Geologisches Jahrbuch Hessen
Band 140 des Geologischen Jahrbuchs Hessen enthält zehn Beiträge zur Paläontologie, Geophysik, Mineralogie und regionalen Geologie Hessens. Ein Schwerpunkt liegt auf detaillierten…
A digital multi-access key for easy identification of large tree species of ebony wood in Madagascar
In 2013, all populations of the precious wood genera Dalbergia (Fabaceae) and Diospyros (Ebenaceae) from Madagascar were placed on CITES Appendix II in an effort to combat unsusta…
Examples of Weichselian environments: local versus regional developments
In der vorliegenden Arbeit werden einige Unsicherheitsfaktoren bei der Rekonstruktion von Paläo-Umweltbedingungen diskutiert. In der Diskussion werden zwei Beispiele aus dem terre…
On the identity and typification of Viola tenuis Bentham (Violaceae)
Viola tenuis Benth. was first described by George Bentham in 1842, without any type specimen designated, but with a collection record by Richard Brinsley Hinds in 1841. Currently,…
Sinosenecio tongziensis (Asteraceae), a new species from north Guizhou, China
Sinosenecio tongziensis R.B.Zhang, Tan Deng & Ying Liu (Asteraceae), a new species from Tongzi County in northern Guizhou, China, is described and illustrated. It closely resemble…
Nitrate reduction potential of a fractured Middle Triassic carbonate aquifer in Southwest Germany
Nitrate reduction constitutes an important natural mechanism to mitigate the widespread and persistent nitrate contamination of groundwater resources. In fractured aquifers, howev…
Ovicula biradiata, a new genus of Compositae from Big Bend National Park in Trans-Pecos Texas
Here, we describe and illustrate a new monospecific genus of Compositae, Ovicula biradiata gen. et sp. nov., from the Chihuahuan Desert in Big Bend National Park, Texas. Ovicula b…
Caelospermum versus Coelospermum in Rubiaceae (Gentianales): their etymologies explained
Caelospermum is the original spelling of the generic name, as it appeared in the protologue, but in literature and online databases, the variant spelling Coelospermum is often use…
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