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  • Articles  (3,626)
  • General Chemistry  (1,844)
  • Inorganic Chemistry  (1,735)
  • taxonomy  (47)
  • 2020-2024  (48)
  • 1915-1919
  • 1
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    \xef\xbb\xbfA new genus of soft coral (Octocorallia, Malacalcyonacea, Cladiellidae) and three new species from Indo-Pacific coral reefs (2024)
    In:  ZooKeys vol. 1188, pp. 275-304
    Details
    Publication Date: 2024-02-01
    Description: Molecular systematic studies of the anthozoan class Octocorallia have revealed widespread incongruence between phylogenetic relationships and taxonomic classification at all levels of the Linnean hierarchy. Among the soft coral taxa in order Malacalcyonacea, the family Alcyoniidae and its type genus Alcyonium have both been recognised to be highly polyphyletic. A recent family-level revision of Octocorallia established a number of new families for genera formerly considered to belong to Alcyoniidae, but revision of Alcyonium is not yet complete. Previous molecular studies have supported the placement of Alcyonium verseveldti (Benayahu, 1982) in family Cladiellidae rather than Alcyoniidae, phylogenetically distinct from the other three genera in that family. Here we describe a new genus, Ofwegenum gen. nov. to accommodate O. verseveldti comb. nov. and three new species of that genus, O. coronalucis sp. nov., O. kloogi sp. nov., and O. colli sp. nov., bringing the total number of species in this genus to four. Ofwegenum gen. nov. is a rarely encountered genus so far known from only a few locations spanning the Indian and western Pacific Oceans. We present the morphological characters of each species and use molecular data from both DNA barcoding and target-enrichment of conserved elements to explore species boundaries and phylogenetic relationships within the genus.
    Keywords: DNA barcoding ; molecular phylogeny ; new combination ; northern Red Sea ; Ofwegenum gen. nov. ; Oman ; R\xc3\xa9union ; sclerites ; target-enrichment ; taxonomy ; ultraconserved elements
    Repository Name: National Museum of Natural History, Netherlands
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  • 2
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    From depressed to detached: extreme shell shape variation in some Peruvian Bostryx species (Gastropoda: Bulimulidae) (2024)
    In:  Folia conchyliologica vol. 71, pp. 18-33
    Details
    Publication Date: 2024-04-22
    Description: This paper investigates Bostryx species from Peru, which show variation in shells shape and are partly carinated, using both ecological and molecular data. The study area is situated in a valley at the western side of the Andes, with a total length of 25 km and an altitudinal range of almost 1,140 m, but focuses on two localities: El Infernillo at ca. 3,350 m and Tambo de Viso at ca. 2,700 m. The morphological variation of the species presents a rather complex picture that cannot completely be resolved by ecological data alone. Molecular data points to three taxa, two of which are variable in shell shape and each restricted to one of the localities mentioned; the third taxon is constant in shell shape and occurs over a large range of the study area. The species originally described as Bostryx multiconspectus Breure, 2008 and B. primigenius Breure, 2008 are redefined as a result.
    Keywords: carination ; ecology ; taxonomy ; Peru ; Orthalicoidea
    Repository Name: National Museum of Natural History, Netherlands
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  • 3
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    Navigating taxonomic complexity: a use-case report on FAIR scientific name-matching service usage in ENVRI Research infrastructures (2024)
    Pensoft Publishers
    In:  Research Ideas and Outcomes vol. 10 no. e121871
    Details
    Publication Date: 2024-04-12
    Description: This paper presents a use-case conducted within the ENVRI FAIR project, examining challenges and opportunities in deploying FAIR-aligned (ensuring Findability, Accessibility, Interoperability and Reusability) scientific name-matching services across Environmental Research Infrastructures (RIs). Six services were tested using various name variations, revealing inconsistencies in match types, status reporting and handling of canonical forms and typos. These diversities pose challenges for RI data pipelines and interoperability. The paper underscores the importance of standardised tools, enhanced communication, training, collaboration and shared resources. Addressing these needs can facilitate more effective FAIR implementation within the ENVRI community and biodiversity research. This, in turn, will empower RIs to seamlessly integrate and leverage scientific names, unlocking the full potential of their data for research and policy implementation.
    Keywords: scientific names ; taxonomy ; biodiversity ; FAIR ; ENVRI
    Repository Name: National Museum of Natural History, Netherlands
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  • 4
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    A new, unusually large, Clavicornaltica Scherer, 1974 flea beetle from Borneo, described and sequenced in the field by citizen scientists (Coleoptera, Chrysomelidae, Galerucinae) (2024)
    Pensoft Publishers
    In:  Biodiversity Data Journal vol. 12 no. e119481
    Details
    Publication Date: 2024-05-20
    Description: Background: The genus Clavicornaltica Scherer 1974 consists of very small, soil-dwelling flea beetles in South, Southeast and East Asia. Due to their diminutive size and morphological similarities, very little is known about their ecology and taxonomical diversity. It is likely that further studies will reveal this genus to be much more speciose than the 30 species currently recognised. New information: A new species of Clavicornaltica from Brunei Darussalam is described, C. mataikanensis Otani et al., sp. nov. This is the second species of this genus recorded from Ulu Temburong National Park.
    Keywords: Lowland Dipterocarp rainforest ; citizen science ; new species ; humicole beetles ; taxonomy ; tourism
    Repository Name: National Museum of Natural History, Netherlands
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  • 5
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    An overlooked name for the species known as Sinetectula farinosa (A. Gould, 1850) (Gastropoda, Pisaniidae) (2023)
    In:  Acta Malacologica Inquisitionis vol. 1 no. 3, pp. 43-45
    Details
    Publication Date: 2024-02-01
    Description: Recently, the new genus Sinetectula Fraussen & Vermeij, 2021 was introduced \nfor some species of Engina-like shells, as they showed clear differences with \ntypical Engina species. For one of the included species an overlooked name was \nfound, changing the name from Sinetectula farinosa (Gould, 1850) to Sinetectula \ncarduus (Reeve, 1844).
    Keywords: Pisaniidae ; taxonomy ; Sinetectula
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
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    First records of water mites from La R\xc3\xa9union Island with the description of one new species (Acari, Hydrachnidia) (2023)
    Les Amis d\'Acarologia
    In:  Acarologia vol. 63 no. 4, pp. 1102-1108
    Details
    Publication Date: 2024-02-01
    Description: New records of water mites (Acari: Hydrachnidia) from La R\xc3\xa9union Island are presented. \nOne species new to science, i.e. Diplodontus insulanus Pe\xc5\xa1i\xc4\x87 & Smit sp. nov. (Hydryphantidae) is described\xcd\xbe a second species, Neumania nodosa (Daday, 1898) (Unionicolidae) is \nreported for the first time from La R\xc3\xa9union.
    Keywords: water mites ; new species ; taxonomy ; DNA-barcoding ; running waters
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
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    Molecular diversity and species delimitation in the genus Mideopsis Neuman, 1880 in Europe (Acari, Hydrachnidia, Mideopsidae) (2023)
    Institute for Biodiversity and Ecology
    In:  Ecologica Montenegrina vol. 70, pp. 101-115
    Details
    Publication Date: 2024-01-17
    Description: Water mites of the genus Mideopsis are often a very abundant member of running and standing water communities \nwhose taxonomy has been based almost exclusively on traditional morphological studies. In this study, we present a \nspecies-level phylogeny of the genus in Europe using 71 cytochrome c oxidase subunit I (COI) barcodes available in the \nBOLD database. In addition to morphological identification, we applied two different molecular taxon delimitation \napproaches (Assemble Species by Automatic Partitioning - ASAP and multi-rate Poisson tree processes). The ASAP \nmolecular delimitation revealed the presence of five molecular operational taxonomic units (MOTU), i.e., M. crassipes \nSoar, 1904, M. milankovici Pe\xc5\xa1i\xc4\x87 & Smit, 2020, M. roztoczensis Biesiadka & Kowalik, 1979 and two distinct M. \norbicularis MOTUs, both widely distributed and sympatric in Central and Northern Europe. Morphological analysis \nrevealed that specimens of Clade 1 match the description given by Biesiadka & Kowalik (1979) for Mideopsis \norbicularis. We highlight the need for a thorough revision of the genus Mideopsis in Europe by integrating \nmorphological and molecular data.
    Keywords: Acari ; DNA barcoding ; taxonomy ; running waters ; standing waters
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
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    Quantification of bone surface textures: exploring a new method of ontogenetic ageing (2023)
    In:  Journal of Analytical Science and Technology vol. 14 no. 1
    Details
    Publication Date: 2024-02-26
    Description: Identifcation of ontogenetic age classes plays an important role in the felds of zoology, palaeontology and archaeology, where accurate age classifcations of (sub)fossil remains are a crucial component for the reconstruction \nof past life. Textural ageing\xe2\x80\x94the identifcation of age-related bone surface textures\xe2\x80\x94provides a size-independent \nmethod for age assessment of vertebrate material. However, most of the work so far is limited to qualitative results. \nWhile qualitative approaches provide helpful insights on textural ageing patterns, they are heavily subject to observer \nbias and fall short of quantitative data relevant for detailed statistical analyses and cross-comparisons. Here, we present a pilot study on the application of 3D surface digital microscopy to quantify bone surface textures on the long \nbones of the grey heron (Ardea cinerea) and the Canada goose (Branta canadensis) using internationally verifed \nroughness parameters. Using a standardised measuring protocol, computed roughness values show a strong correlation with qualitative descriptions of textural patterns. Overall, higher roughness values correspond to increased numbers of grooves and pits and vice versa. Most of the roughness parameters allowed distinguishing between diferent \nontogenetic classes and closely followed the typical sigmoidal animal growth curve. Our results show that bone \ntexture quantifcation is a feasible approach to identifying ontogenetic age classes.
    Keywords: General Physics and Astronomy ; General Environmental Science ; General Biochemistry ; Genetics and Molecular Biology ; General Materials Science ; General Chemistry ; Roughness ; Surfaces ; Taphonomy ; Topography ; Bone ; Ontogeny ; Digital microscopy
    Repository Name: National Museum of Natural History, Netherlands
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  • 9
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    New combinations in and typification of tropical African species of Urochloa (incl. Brachiaria) (Poaceae) (2023)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 68 no. 2, pp. 73-84
    Details
    Publication Date: 2024-05-06
    Description: Detailed morphological and molecular research has led to the conclusion that the majority of the species of the genus Brachiaria have to move to the much smaller genus Urochloa. Although many of the necessary new combinations were made, in Africa a fair number of accepted species still do not yet have a name within Urochloa. Following work on WestAfrica, CentralAfrica and Madagascar, this paper now provides these new combinations for the remaining sub-SaharanAfrican species, as well as a full synonymy for all EastAfrican ones, including typification. In total, the paper deals with 40 species, for 12 of these new combinations are created, while 55 lectotypes and one neotype of both accepted names and synonyms are designated.
    Keywords: Africa ; grasses ; nomenclature ; Paniceae ; taxonomy ; typification
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
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    The genus Gautieria (Gomphales) in Europe and the Mediterranean Basin: a morphological and phylogenetic taxonomic revision (2023)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 50 no. 1, pp. 48-122
    Details
    Publication Date: 2024-04-02
    Description: Type material and additional collections of 11 taxa of Gautieria described in Europe and North Africa have been studied, namely G. dubia, G. graveolens, G. morchelliformis var. globispora, G. morchelliformis var. magnicellaris, G. morchelliformis var. morchelliformis, G. morchelliformis var. stenospora, G. otthii, G. pseudovestita, G. retirugosa, G. trabutii and G. villosa. At the same time, morphological and genetic studies on recent and herbarium collections from several European countries have been carried out. This enabled clarification of sections within Gautieria and differentiation of 28 taxa, of which 21 are new to science. However, the deeper relationships and nomenclature changes related to the phylogenetic position of the genus Gautieria within Gomphaceae will not be addressed in this study because they would require a more complete molecular analysis together with that of related genera, e.g., Gomphus, Turbinellus, and the four subgenera of Ramaria. In addition, a lectotype for G. villosa var. villosa and reference specimens for G. graveolens and G. morchelliformis var. morchelliformis are selected, and the new combination G. morchelliformis var. dubia is proposed. Detailed descriptions, macro- and microphotographs and distribution maps of all taxa are provided, as well as extensive information on their ecology, chorology and phylogeny. A key is included to facilitate identification of taxa.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Europe ; Gautieria ; ITS-LSU phylogeny ; Mediterranean Region ; Ramaria ; sequestrate fungi ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 11
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    A new subspecies of Spermacoce bequaertii (Rubiaceae: Spermacoceae) (2023)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 68 no. 1, pp. 63-65
    Details
    Publication Date: 2024-03-24
    Description: A new subspecies of the African species Spermacoce bequaertii is described and illustrated. This new subspecies (subsp. brevituba) is restricted to the Kasai district in the Democratic Republic of Congo, and differs from the typical subspecies in having smaller mature flowers with a glabrous corolla tube inside.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Africa ; Rubiaceae ; Spermacoce bequaertii ; Spermacoceae ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 12
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    Dyscritulus europaeus sp. nov. (Hymenoptera, Braconidae, Aphidiinae): description of a new aphid parasitoid species with an identification key for species of the genus (2023)
    Pensoft Publishers
    In:  ZooKeys vol. 1175, pp. 285-297
    Details
    Publication Date: 2024-04-03
    Description: The braconid genus Dyscritulus Hincks is a small member of the subfamily Aphidiinae, distributed in Europe and Central Asia. All its species are highly specialized parasitoids of aphids of the genera Drepanosiphum Koch and, probably, Periphyllus van der Hoeven which are mostly associated with maple and sycamore trees (genus Acer). Upon examination of specimens from the Naturalis Biodiversity Center, Leiden, we unexpectedly noted unusual variability in morphological characters compared to other known Dyscritulus species. Further inspection of other material previously identified as Dyscritulus planiceps Marshall, 1896 revealed additional specimens with the same morphological variability. Here we describe a new species of the genus, Dyscritulus europaeus sp. nov., associated with Drepanosiphum aphids on Acer.
    Keywords: Aphid parasitoids ; Europe ; museum collections ; new species ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 13
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    Widespread support for a global species list with a formal governance system (2023)
    Proceedings of the National Academy of Sciences
    In:  Proceedings of the National Academy of Sciences vol. 120 no. 45
    Details
    Publication Date: 2024-03-06
    Description: Taxonomic data are a scientific common. Unlike nomenclature, which has strong governance institutions, there are currently no generally accepted governance institutions for the compilation of taxonomic data into an accepted global list. This gap results in challenges for conservation, ecological research, policymaking, international trade, and other areas of scientific and societal importance. Consensus on a global list and its management requires effective governance and standards, including agreed mechanisms for choosing among competing taxonomies and partial lists. However, governance frameworks are currently lacking, and a call for governance in 2017 generated critical responses. Any governance system to which compliance is voluntary requires a high level of legitimacy and credibility among those by and for whom it is created. Legitimacy and credibility, in turn, require adequate and credible consultation. Here, we report on the results of a global survey of taxonomists, scientists from other disciplines, and users of taxonomy designed to assess views and test ideas for a new system of taxonomic list governance. We found a surprisingly high degree of agreement on the need for a global list of accepted species and their names, and consistent views on what such a list should provide to users and how it should be governed. The survey suggests that consensus on a mechanism to create, manage, and govern a single widely accepted list of all the world\xe2\x80\x99s species is achievable. This finding was unexpected given past controversies about the merits of list governance.
    Keywords: taxonomists survey ; taxonomy ; classification ; species lists ; governance
    Repository Name: National Museum of Natural History, Netherlands
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  • 14
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    Diversity and novel lineages of black yeasts in Chaetothyriales from freshwater sediments in Spain (2023)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 51 no. 1, pp. 194-228
    Details
    Publication Date: 2024-03-06
    Description: Black yeasts comprise a group of Ascomycota of the order Chaetothyriales with highly variable morphology, \na great diversity of ecological niches and life cycles. Despite the ubiquity of these fungi, their diversity in freshwater \nsediments is still poorly understood. During a survey of culturable Ascomycota from river and stream sediments \nin various sampling sites in Spain, we obtained 47 isolates of black yeasts by using potato dextrose agar supplemented with cycloheximide. A preliminary morphological study and sequence analyses of the internal transcribed \nspacer region (ITS) and the large subunit (LSU) of the nuclear rDNA revealed that most of the isolates belonged \nto the family Herpotrichiellaceae. We have confidently identified 30 isolates representing the following species: \nCapronia pulcherrima, Cladophialophora emmonsii, Exophiala equina, Exophiala pisciphila, Exophiala radicis, and \nPhialophora americana. However, we encountered difficulty in assigning 17 cultures to any known species within \nChaetothyriales. Combining phenotypic and multi-locus phylogenetic analyses based on the ITS, LSU, \xce\xb2-tubulin \n(tub2) and translation elongation factor 1-\xce\xb1 (tef1-\xce\xb1) gene markers, we propose the new genus Aciculomyces in the \nHerpotrichiellaceae to accommodate the novel species Aciculomyces restrictus. Other novel species in this family \ninclude Cladophialophora denticulata, Cladophialophora heterospora, Cladophialophora irregularis, Exophiala \ncandelabrata, Exophiala dehoogii, Exophiala ramosa, Exophiala verticillata and Phialophora submersa. The new \nspecies Cyphellophora spiralis, closely related to Cyphellophora suttonii, is described, and the phylogeny of the \ngenus Anthopsis in the family Cyphellophoraceae is discussed. By utilizing these four markers, we were able to \nstrengthen the phylogenetic resolution and provide more robust taxonomic assessments within the studied group. \nOur findings indicate that freshwater sediments may serve as a reservoir for intriguing black yeasts, which warrant \nfurther investigation to address gaps in phylogenetic relationships, particularly within Herpotrichiellaceae.
    Keywords: Ascomycota ; biodiversity ; Cyphellophoraceae ; fluvial sediments ; Herpotrichiellaceae ; new taxa ; phylogeny ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 15
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    Multigene phylogeny of the order Physarales (Myxomycetes, Amoebozoa): shedding light on the dark-spored clade (2023)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 51 no. 1, pp. 89-124
    Details
    Publication Date: 2024-03-06
    Description: The class Myxomycetes consists of free-living protists characterised by their complex life cycle, which \nincludes both microscopic (amoebae, flagellates and cists) and macroscopic stages (spore-bearing fruiting bodies, \nsclerotia, and plasmodia). Within it, the order Physarales, with more than 450 recognised species, constitutes the \nlargest group. Although previous studies have shown the polyphyly of some of the traditionally accepted genera, \nits internal phylogenetic relationships have remained uncertain so far, and together with the lack of data for some \nkey species, it prevented any taxonomic and nomenclatural revisions. We have compiled a substantially expanded \ndataset in terms of both taxon sampling and molecular data, including most of the genera described to date and \nfour unlinked DNA regions, for which we provide partial sequences: nSSU, EF-1\xce\xb1, \xce\xb1-Tub, and mtSSU, analysed \nthrough maximum likelihood and Bayesian methods. Our results confirm that the family Didymiaceae is paraphyletic to the rest of Physarales. Within Didymiaceae s.lat., the recent reinstatement of the genus Polyschismium for \nmost species traditionally ascribed to Lepidoderma, except for the type (Ronikier et al. 2022), is further supported \nhere, as well as the definite inclusion of the genus Mucilago in Didymium and Lepidoderma s.str. (L. tigrinum) in \nDiderma (Prikhodko et al. 2023). Additionally, the genus Diachea is redefined to include some species previously \ntreated in Physaraceae (Craterium spp. with true columella). Within the monophyletic family Physaraceae, most \ngenera are recovered as polyphyletic, suggesting that they should be no longer accepted as currently defined. \nHowever, the lack of resolution of some relationships within Physaraceae prevents us from resuscitating or creating several new genera to mitigate polyphyly. Among the well-defined groups with clear molecular signatures, we \npropose two taxonomic and nomenclatural changes at generic level: 1) a new genus, Nannengaella, is proposed \nfor a major clade containing Physarum globuliferum and other species with heavily calcified sporophores and, often, \na true calcareous columella; 2) Lignydium is resurrected for the clade containing Fuligo muscorum. Additionally, \nTrichamphora is suggested as the correct name for the clade containing Physarum pezizoideum. The taxonomy \nand nomenclature of some provisional genera, currently synonymous with Fuligo and Physarum, are disentangled, \nand we provide a comprehensive and updated nomenclatural conspectus that can be used when better resolved \nphylogenies are obtained. In total, 22 new combinations are proposed in different genera. A provisional key to the \ngenera of the order is also provided.
    Keywords: \xce\xb1-Tub ; classification ; EF-1\xce\xb1 ; Lignydium ; mtSSU ; Nannengaella ; new taxa ; nomenclature ; nSSU ; systematics ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 16
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    A new species of Schoenorchis (Orchidaceae) from West Java, Indonesia (2023)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 68 no. 1, pp. 66-69
    Details
    Publication Date: 2024-03-17
    Description: Schoenorchis kembangleutik Yudistira & Mustaqim described here as new to science is an orchid species \ncurrently considered endemic to West Java. It is similar to S. pachyachris (J.J.Sm.) J.J.Sm. from Sumatra and Java \nbut differs in having flowers with midlobe of labellum orbicular (vs oblong) with horizontal and rounded (vs pointing \nupwards and tapering to a point) apex, the labellum side lobes white, uncinate and retrorse at the apex (vs yellow, \nstraight and erect at apex), and in having shorter spurs with straight base (2 vs 4 mm long, with geniculate base). \nA morphological description, notes on distribution, habitat and ecology, an illustration, photographs and a key to \nthe five species of Schoenorchis of Java are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Aeridinae ; flora of Indonesia ; Malesia ; Schoenorchis kembangleutik ; taxonomy
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  • 17
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    A fifty-locus phylogenetic analysis provides deep insights into the phylogeny of Tricholoma (Tricholomataceae, Agaricales) (2023)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 50 no. 1, pp. 1-26
    Details
    Publication Date: 2024-03-27
    Description: As an ectomycorrhizal fungal genus that contains matsutake and other edible mushrooms, Tricholoma has great economic and ecological significance. However, the phylogenetic relationships within the genus remain unsettled. To clarify the infrageneric relationships of Tricholoma, including the identification of monophyletic subgenera and sections, three phylogenetic analyses were conducted employing single-locus (ITS), five-locus (ITS/ RPB2/EF-1α/MCM7/mtSSU) and 50-locus (45 single-copy orthologous genes plus the aforementioned ones) DNA nucleotide sequences. Our data indicated that ITS sequences could serve the species delimitation of Tricholoma in most cases and monophyletic groups recognition in some cases, and the five-locus dataset could resolve a section-level phylogeny of this genus, while the 50-locus dataset could clarify the delimitation of subgenera and settle the relationships among sections within this genus. A fifty-locus dataset was firstly employed to construct a robust phylogeny of Tricholoma. Based on this, a new infrageneric arrangement for the genus Tricholoma, with four subgenera, of which two are in accordance with the previous subgenera Pardinicutis and Sericeicutis, and eleven sections, is suggested. Subgenus Pardinicutis, occupying the basal position, only harbors sect. Pardinicutis, while the subg. Sericeicutis comprises sects. Lasciva and Sericella located at the sub-basal position with good support. Subgenus Terrea is newly erected here and consists of sect. Terrea, sect. Atrosquamosa and two as yet unnamed phylogenetic lineages. Besides an unnamed section-level lineage, subg. Tricholoma consists of sects. Genuina, Muscaria, Rigida, Tricholoma, Fucata and Matsutake, of which the two latter are newly proposed. The previously defined subg. Contextocutis is clustered within subg. Tricholoma and is a synonym of the latter. Tricholoma colossus, T. acerbum and their allies, which used to be allocated in sect. Megatricholoma (or genus Megatricholoma), are relocated to sect. Genuina since they form a strongly supported monophyletic group and share rusty or black spots on lamellae with other species in this section. Taxonomic descriptions of the new infrageneric taxa and a key to subgenera and sections of the genus Tricholoma are presented.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; ectomycorrhizal fungi ; new sections ; new subgenus ; systematics ; taxonomy
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  • 18
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    Overview of the European species of the genus Clitocella (Entolomataceae, Agaricales) with notes on extralimital taxa (2023)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 50 no. 1, pp. 123-157
    Details
    Publication Date: 2024-04-08
    Description: A revision, based on morphological and multigene analysis, of the Clitocella species currently present in Europe is provided. Portions of nrITS rDNA, nr28S rDNA (LSU), RNA polymerase II second largest subunit (RPB2), translation elongation factor 1-alpha (EF-1α), and ATPase subunit 6 (ATP6), were used to sort out the relationships of the species within the genus. Three subgenera were recognized: Clitocella subg. Clitocella encompassing C.popinalis, C.colorata, C.mundula, C.nigrescens, C.obscura and the new species C.solaris from Switzerland; the new Clitocella subg. Paraclitopilus including C.fallax and C.blancii; and the new Clitocella subg. Rhodopleurella for accommodating C. termitophila, a peculiar entity characterized by a pleurotoid habit and growing on decaying, abandoned termite nests in the Dominican Republic. Clitocella colorata originally described from China is here reported and described for the first time in Europe (Italy and Estonia). Rhodocybe cupressicola and Clitopilus ammophilus are reduced to later synonyms of Rhodopaxillus nigrescens; similarly, Clitopilus amarus is treated as a later synonym of Omphalia fallax while Rhodocybe amarella and R. ochraceopallida of Rhodopaxillus blancii. Finally, Austrian and Swedish herbarium collections identified as Rhodocybe, a doubtful taxon considered by several modern authors occasionally as either a similar but distinct species from R.popinalis or as a dwarfish, puny and odourless form of R. popinalis, have been proved to be R. tugrulii, a species recently described from Turkey and Estonia, and also later reported from Italy and USA.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Agaricomycetes ; Basidiomycota ; Rhodocybe ; taxonomy ; Tricholomatineae
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  • 19
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    Diversity of Sporocadaceae (pestalotioid fungi) from Rosa in China (2022)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 49 no. 1, pp. 201-260
    Details
    Publication Date: 2024-03-20
    Description: Rosa (Rosaceae) is an important ornamental and medicinal plant genus worldwide, with several species being cultivated in China. Members of Sporocadaceae (pestalotioid fungi) are globally distributed and include endophytes, saprobes but also plant pathogens, infecting a broad range of host plants on which they can cause important plant diseases. Although several Sporocadaceae species were recorded to inhabit Rosa spp., the taxa occurring on Rosa remain largely unresolved. In this study, a total of 295 diseased samples were collected from branches, fruits, leaves and spines of eight Rosa species (R. chinensis, R. helenae, R. laevigata, R. multiflora, R. omeiensis, R. rugosa, R. spinosissima and R. xanthina) in Gansu, Henan, Hunan, Qinghai, Shaanxi Provinces and the Ningxia Autonomous Region of China. Subsequently 126 strains were obtained and identified based on comparisons of DNA sequence data. Based on these results 15 species residing in six genera of Sporocadaceae were delineated, including four known species (Pestalotiopsis chamaeropis, Pes. rhodomyrtus, Sporocadus sorbi and Spo. trimorphus) and 11 new species described here as Monochaetia rosarum, Neopestalotiopsis concentrica, N. subepidermalis, Pestalotiopsis tumida, Seimatosporium centrale, Seim. gracile, Seim. nonappendiculatum, Seim. parvum, Seiridium rosae, Sporocadus brevis, and Spo. spiniger. This study also represents the first report of Pes. chamaeropis, Pes. rhodomyrtus and Spo. sorbi on Rosa. The overall data revealed that Pestalotiopsis was the most prevalent genus, followed by Seimatosporium, while Pes. chamaeropis and Pes. rhodomyrtus were the two most prevalent species. Analysis of Sporocadaceae abundance on Rosa species and plant organs revealed that spines of R. chinensis had the highest species diversity.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Amphisphaeriales ; Ascomycota ; new taxa ; phylogeny ; taxonomy
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  • 20
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    Masters of the manipulator: two new hypocrealean genera, Niveomyces (Cordycipitaceae) and Torrubiellomyces (Ophiocordycipitaceae), parasitic on the zombie ant fungus Ophiocordyceps camponoti-floridani (2022)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 49, pp. 171-194
    Details
    Publication Date: 2024-03-20
    Description: During surveys in central Florida of the zombie-ant fungus Ophiocordyceps camponoti-floridani, which manipulates the behavior of the carpenter ant Camponotus floridanus, two distinct fungal morphotypes were discovered associated with and purportedly parasitic on O. camponoti-floridani. Based on a combination of unique morphology, ecology and phylogenetic placement, we discovered that these morphotypes comprise two novel lineages of fungi. Here, we propose two new genera, Niveomyces and Torrubiellomyces, each including a single species within the families Cordycipitaceae and Ophiocordycipitaceae, respectively. We generated de novo draft genomes for both new species and performed morphological and multi-loci phylogenetic analyses. The macromorphology and incidence of both new species, Niveomyces coronatus and Torrubiellomyces zombiae, suggest that these fungi are mycoparasites since their growth is observed exclusively on O. camponoti-floridani mycelium, stalks and ascomata, causing evident degradation of their fungal hosts. This work provides a starting point for more studies into fungal interactions between mycopathogens and entomopathogens, which have the potential to contribute towards efforts to battle the global rise of plant and animal mycoses.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Hypocreales ; behaviour manipulation ; entomopathogenic fungi ; genomics ; mycoparasites ; new taxa ; taxonomy
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  • 21
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    Synopsis of the genus Drosera (Droseraceae) in Angola and the Democratic Republic of the Congo (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 1-14
    Details
    Publication Date: 2024-05-03
    Description: While someAfrican Floras were continuously revised and several are now almost completed, the Flora of Angola’s ‘Conspectus Florae Angolensis’ still remains incomplete. This applies also for Droseraceae and the genus Drosera. Our study aims to provide an identification key for Drosera ofAngola and the Democratic Republic of the Congo, including all morphological characters of the different Angolan and Congolese taxa. Loans from different herbaria were studied. A list of important morphological characters was combined with data obtained by observations and measurements. Beside the identification key, nine species descriptions with drawings of the main characteristics, distribution maps and SEM-pictures of pollen and seed morphology are provided. The possibility of hybridisation is discussed. Despite difficulties such as varying morphology or hybridisation in some species, the identification key enables researchers to identify specimens by morphological characters.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Angola ; Democratic Republic of the Congo ; distribution ; Drosera ; identification key ; taxonomy
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  • 22
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    A synoptic revision of the golden glories, genus Decalobanthus Convolvulaceae (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 37-70
    Details
    Publication Date: 2024-05-03
    Description: Eighteen species of Decalobanthus are recognized in this concise revision of the genus. Two new combinations are made and one new name is proposed to accommodate a change in rank. The genus is centered in SoutheastAsia and Malesia, with outlier species in the tropical Pacific and one species that reaches the Neotropics; a single wide-ranging species extends from eastern Tropical Africa and Madagascar in the west to the Hawaiian Islands in the east. Each species is provided with a diagnosis, summary of the species’ ecology, compiled vernacular names, and uses. Distributions are mapped based on herbarium voucher specimens. Where appropriate, typifications and nomenclatural problems are explained and comments on morphological variation and the need for further study are highlighted. Selected species are illustrated with colour photos of living plants. An index of numbered collections examined is provided to aid in specimen identification and herbarium curation.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; biodiversity ; Convolvulaceae ; Decalobanthus ; Malesia ; Merremia ; Southeast Asia ; taxonomy
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  • 23
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    Revision of the genera Leptopus and Notoleptopus (Phyllanthaceae) in Malesia (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 20-25
    Details
    Publication Date: 2024-05-04
    Description: A revision of Leptopus and Notoleptopus (Phyllanthaceae tribe Poranthereae) in Malesia is presented. Both genera are present with a single species in Malesia, L. australis and N. decasnei, respectively. Phylogenetically the two genera are distinct, but morphologically their differences are minimal. Nomenclature, descriptions, distributions and various notes are presented, just as a technical drawing of both species.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Leptopus ; Malesia ; Phyllanthaceae ; Poranthereae ; revision ; taxonomy
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  • 24
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    Numerous new records of tropical non-indigenous species in the Eastern Mediterranean highlight the challenges of their recognition and identification (2021)
    Pensoft Publishers
    In:  ZooKeys vol. 1010, pp. 1-95
    Details
    Publication Date: 2024-01-12
    Description: New data on 52 non-indigenous mollusks in the Eastern Mediterranean Sea is reported. Fossarus sp. (aff. aptus sensu Blatterer 2019), Coriophora lessepsiana Albano, Bakker & Sabelli, sp. nov., Cerithiopsis sp. aff. pulvis, Joculator problematicus Albano & Steger, sp. nov., Cerithiopsis sp., Elachisina sp., Iravadia aff. elongata, Vitrinella aff. Vitrinella sp. 1 (sensu Blatterer 2019), Melanella orientalis, Parvioris aff. dilecta, Odostomia cf. dalli, Oscilla virginiae, Parthenina cossmanni, Parthenina typica, Pyrgulina craticulata, Turbonilla funiculata, Cylichna collyra, Musculus coenobitus, Musculus aff. viridulus, Chavania erythraea, Scintilla cf. violescens, Iacra seychellarum and Corbula erythraeensis are new records for the Mediterranean. An unidentified gastropod, Skeneidae indet., Triphora sp., Hypermastus sp., Sticteulima sp., Vitreolina cf. philippi, Odostomia (s.l.) sp. 1, Henrya (?) sp., and Semelidae sp. are further potential new non-indigenous species although their status should be confirmed upon final taxonomic assessment. Additionally, the status of Dikoleps micalii, Hemiliostraca clandestina comb. nov. and H. athenamariae comb. nov. is changed to non-indigenous, range extensions for nine species and the occurrence of living individuals for species previously recorded from empty shells only are reported. Opimaphora blattereri Albano, Bakker & Sabelli, sp. nov. is described from the Red Sea for comparison with the morphologically similar C. lessepsiana Albano, Bakker & Sabelli, sp. nov. The taxonomic part is followed by a discussion on how intensive fieldwork and cooperation among institutions and individuals enabled such a massive report, and how the poor taxonomic knowledge of the Indo-Pacific fauna hampers non-indigenous species detection and identification. Finally, the hypothesis that the simultaneous analysis of quantitative benthic death assemblages can support the assignment of non-indigenous status to taxonomically undetermined species is discussed.
    Keywords: Animal Science and Zoology ; Ecology ; Evolution ; Behavior and Systematics ; Cerithiopsidae ; invasion biology ; Lessepsian invasion ; Mollusca ; new species ; Red Sea ; taxonomy ; Triphoridae
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  • 25
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    Asplenium alleniae (Aspleniaceae), a new fern species from Borneo and New Guinea (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 219-223
    Details
    Publication Date: 2024-01-12
    Description: A new species, Asplenium alleniae, is described from high elevation habitats in Sabah (Malaysia) and \nPapua New Guinea. Previous phylogenetic analyses of chloroplast loci determined that A. alleniae was most closely \nrelated to A. pauperequitum from New Zealand. Asplenium alleniae differs from A. pauperequitum most obviously by \nthe acuminate apices of its longer pinnae. The combination of pinnate fronds with few pairs of primary pinnae and \ndark red-brown axes distinguishes A. alleniae from superficially similar species of Asplenium in Malesia. Asplenium \nalleniae is provisionally assessed as Endangered.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; conservation ; Malaysia ; Malesia ; Mount Kinabalu ; Papua New Guinea ; Sabah ; taxonomy
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  • 26
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    The integrative taxonomy of Beauveria asiatica and B. bassiana species complexes with whole-genome sequencing, morphometric and chemical analyses (2021)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 47, pp. 136-150
    Details
    Publication Date: 2024-04-23
    Description: Fungi are rich in complexes of cryptic species that need a combination of different approaches to be delimited, including genomic information. Beauveria (Cordycipitaceae, Hypocreales) is a well-known genus of entomopathogenic fungi, used as a biocontrol agent. In this study we present a polyphasic taxonomy regarding two widely distributed complexes of Beauveria: B. asiatica and B. bassiana s.lat. Some of the genetic groups as previously detected within both taxa were either confirmed or fused using population genomics. High levels of divergence were found between two clades in B. asiatica and among three clades in B. bassiana, supporting their subdivision as distinct species. Morphological examination focusing on the width and the length of phialides and conidia showed no difference among the clades within B. bassiana while conidial length was significantly different among clades within B. asiatica. The secondary metabolite profiles obtained by liquid chromatography-mass spectrometry (LC-MS) allowed a distinction between B. asiatica and B. bassiana, but not between the clades therein. Based on these genomic, morphological, chemical data, we proposed a clade of B. asiatica as a new species, named B. thailandica, and two clades of B. bassiana to respectively represent B. namnaoensis and B. neobassiana spp. nov. Such closely related but divergent species with different host ranges have potential to elucidate the evolution of host specificity, with potential biocontrol application.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Beauveria ; chemotaxonomy ; population genomics ; taxonomy
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  • 27
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    Cortinarius subgenus Leprocybe in Europe: expanded Sanger and Next Generation Sequencing unveil unexpected diversity in the Mediterranean (2021)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 46, pp. 188-215
    Details
    Publication Date: 2024-04-23
    Description: Molecular phylogenies in the past decade have demonstrated that the described diversity of Cortinarius is still underestimated, especially outside continental and boreal ecoregions where the genus has been historically investigated. We tackled this issue by revisiting the so far unresolved subgenus Leprocybe, and focused on the largely unexplored Mediterranean hotspot of biodiversity. The sequencing and phylogenetic analysis of 161 vouchered collections from Austria, Cyprus, France, Germany, Italy and Spain, including 16 types, allowed for the delineation of 11 species in this lineage, three of them recognised as new to science and formally introduced as C. jimenezianus, C. selinolens and C. viridans spp. nov., respectively. Interestingly, the newly described species exhibit a strict Mediterranean distribution, and one of them is putatively endemic to the island of Cyprus, highlighting the remarkable potential of this neglected ecoregion to uncover further undescribed diversity of Cortinarius in the future. The present work also unveils 23 synonymies in this subgenus, as well as previously undetected crypticism within C. venetus. Next Generation Sequencing carried out on three old and contaminated holotypes, successfully decrypts their phylogenetic identity, including that of C. leproleptopus, finally settling the long-standing controversy over the taxonomic status of this species. A brief overview of each species in the subgenus is lastly provided and a key is proposed to facilitate the identification of presently known European taxa of Leprocybe in the field.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Cedrus brevifolia ; endemism ; phylogeny ; taxonomy ; Veneti
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  • 28
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    Multi-locus phylogenetic analysis of lophiostomatoid fungi motivates a broad concept of Lophiostoma and reveals nine new species (2021)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 46, pp. 240-271
    Details
    Publication Date: 2024-04-09
    Description: Recent studies on the fungal families Lophiostomataceae and Lophiotremataceae (Pleosporales) have provided varying phylogenetic and taxonomic results concerning constituent genera and species. By adding DNA sequences of 24 new strains of Lophiostomataceae and nine new strains of Lophiotremataceae to a sequence data matrix from international databases, we provide a new understanding of the relationships within these families. Multigene analysis of the four molecular markers ITS, LSU, TEF1-α, and RPB2 reveals that the genera within Lophiotremataceae are phylogenetically well supported. Lophiostoma myriocarpum is recognised as a species of Lophiotrema in contrast to earlier concepts. In Lophiostomataceae, we resurrect a broad generic concept of the genus Lophiostoma and reduce 14 genera to synonymy: Alpestrisphaeria, Biappendiculispora, Capulatispora, Coelodictyosporium, Guttulispora, Lophiohelichrysum, Lophiopoacea, Neopaucispora, Neotrematosphaeria, Platystomum, Pseudocapulatispora, Pseudolophiostoma, Pseudoplatystomum, and Sigarispora. Nine new species are described based on molecular data and in most cases supported by morphological characters: Antealophiotrema populicola, Atrocalyx nordicus, Lophiostoma carpini, Lophiostoma dictyosporium, Lophiostoma erumpens, Lophiostoma fusisporum, Lophiostoma jotunheimenense, Lophiostoma plantaginis, and Lophiostoma submuriforme. Lophiostoma caespitosum and Lophiotrema myriocarpum are lecto- and epitypified to stabilise their species concepts. High intraspecific variability of several morphological traits is common within Lophiostomataceae.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Lophiostomataceae ; Lophiotremataceae ; molecular phylogeny ; new taxa ; Pleosporales ; taxonomy
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    Hygrophorus sect. Olivaceoumbrini: new boundaries, extended biogeography and unexpected diversity unravelled by transatlantic studies (2021)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 46, pp. 272-312
    Details
    Publication Date: 2024-04-15
    Description: As currently delineated, Hygrophorus sect. Olivaceoumbrini is a polyphyletic assembly within subg. Colorati, encompassing glutinous and pigmented taxa. According to available literature, between a dozen and twenty species may belong in the section, mostly represented in continental and boreal forests of Europe and North America. However, the limited phylogenetic and biogeographic coverage of the genus does not presently allow for a reliable assessment of its taxonomic boundaries, nor does it provide a complete picture of species diversity within sect. Olivaceoumbrini. In an ongoing effort to confer an evolutionary backbone to Hygrophorus systematics, we assembled and analysed a dataset comprising 268 intercontinental sequences, including holotypes of 7 taxa previously not positioned phylogenetically, and enriched with collections from largely unexplored Mediterranean and Anatolian ecosystems. Overall, 30 clades are identified within 5 distinct lineages, including 11 species putatively new to science. Seven of these are formally described here as H. agathosmoides, H. albofloccosus, H. canadensis, H. limosus, H. marcocontui, H. pinophilus and H. pustulatoides spp. nov. This enriched coverage of section Olivaceoumbrini s.lat. calls for a re-evaluation of its natural boundaries into a core monophyletic clade, including H. olivaceoalbus and five closely related lookalikes, as well as the assignment of the section rank to the four remaining lineages: sect. Fuscocinerei sect. nov., sect. Limacini sect. nov., sect. Nudolidi sect. nov. and sect. Tephroleuci, respectively. We also stabilize the usage of six historical names, H. glutinifer, H. hyacinthinus, H. mesotephrus, H. olivaceoalbus, H. pustulatus and H. tephroleucus, through designation of two neotypes, three lectotypes and four epitypes.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Hygrophorus latitabundus ; Hygrophorus olivaceoalbus ; Hygrophorus persoonii ; phylogeny ; taxonomy ; waxcap
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  • 30
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    Expansion of the fern genus Lecanopteris to encompass some species previously included in Microsorum and Colysis (Polypodiaceae) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 242-248
    Details
    Publication Date: 2024-05-03
    Description: The fern genus Microsorum is not monophyletic, with previous phylogenetic analyses finding three lineages to group not with the type species, but to form a grade related to the 13 species of Lecanopteris. These three lineages have recently been recognised as separate genera: Bosmania, Dendroconche, and Zealandia. Here, we explore the morphological characterisation of Lecanopteris and these other three lecanopteroid genera. While the traditional circumscription of Lecanopteris has seemed sacrosanct, its defining morphological character states of rhizome cavities and ant brooding associations occur in other lecanopteroid ferns and elsewhere in the Polypodiaceae. Instead, we suggest that the morphological characterisation of an expanded Lecanopteris including the Dendroconche and Zealandia lineages is just as good, if not better, with the pertinent character states being the absence of sclerenchyma strands in the rhizome and at least some fronds having Nooteboom’s type 5 venation pattern. This wider circumscription is also better able to accommodate phylogenetic uncertainty, and it means that groups of species traditionally placed together in a single genus are not distributed across different genera. General users familiar with the narrower circumscription of Lecanopteris will not be significantly disrupted, because there is little geographic overlap with the lineages added to the genus. Consequently, we make new combinations in Lecanopteris for 11 species and one subspecies.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Bosmania ; Colysis ; Dendroconche ; lecanopteroid ; microsoroid ; taxonomy ; Zealandia
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    Two new species of Hanguana (Hanguanaceae) from Kalimantan, Indonesia (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 101-105
    Details
    Publication Date: 2024-05-22
    Description: Two new Hanguana species from Kalimantan, Indonesian Borneo, are described here. Hanguana karimatae from Karimata Island, West Kalimantan province, is characterised by a stout habit, prominently oblique yellow fruits with raised stigma and 1- or 2-seeded fruits. Hanguana nana from Central Kalimantan province is the smallest species in the genus with the stem entirely covered by leaves, deflexed barely branched infructescences with only a few fruits, each with a single bowl-shaped seed with a large and incurved appendage. These are the first descriptions of new Hanguana species from Kalimantan (Indonesian Borneo). Colour plates as well as notes on distribution, ecology, habitat and conservation status are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Borneo ; Hanguana karimatae ; Hanguana nana ; Kalimantan ; Karimata Island ; taxonomy
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    New combinations and names for some Philippine vascular plants (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 96-100
    Details
    Publication Date: 2024-05-22
    Description: New names and new combinations are presented for 29 Philippine species in the families Acanthaceae, Aspleniaceae, Cucurbitaceae, Gesneriaceae, Lauraceae, Myrtaceae, Oleaceae, Thelypteridaceae, Urticaceae, and Vitaceae. Seventeen names are lectotypified.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; lectotypification ; nomenclature ; Philippines ; taxonomy
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    Maesa brevipedicellata (Primulaceae), a new species from Papua New Guinea (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 83-85
    Details
    Publication Date: 2024-01-12
    Description: Maesa brevipedicellata, a new species of Maesa (Primulaceae-Maesoideae) from Papua New Guinea, \nis described and illustrated based on herbarium specimen observations. The collections of this species resemble \nM. rufovillosa and were previously determined as that species. Maesa brevipedicellata is unique with its selfsupporting habit, hispid hairs throughout and paniculate inflorescences with very short pedicels. This new species \nmainly differs from M. rufovillosa by the habit (tree/shrub in M. brevipedicellata vs climber in M. rufovillosa) and the \ninflorescence structure (panicles in M. brevipedicellata vs simple racemes in M. rufovillosa).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Ericales ; Maesa ; Malesia ; Myrsinaceae ; new species ; Papuasia ; taxonomy
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  • 34
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    A revision of the extant species of Theodoxus (Gastropoda, Neritidae) in Asia, with the description of three new species (2020)
    In:  Zoosystematics and Evolution vol. 96, pp. 25-66
    Details
    Publication Date: 2024-01-12
    Description: Asia contains a high species diversity of the freshwater gastropod genus Theodoxus. Recent molecular and morphological reviews of this diversity have uncovered a number of yet undescribed species while suggesting the urgent revision of several others. Moreover, some of these studies have indicated a number of species previously not recorded for this continent. Despite the advancements, a taxonomic revision and an update on the distribution of Theodoxus spp. in Asia is still pending. Here, we construct the most robust phylogeny of Theodoxus up to now and review original descriptions, type material, recent taxonomic revisions, compendia, and species lists to provide a comprehensive checklist of all known extant Asian Theodoxus spp. Our checklist also provides descriptions for three recently discovered and yet undescribed species (Theodoxus gurur Sands & Gl\xc3\xb6er, sp. nov., Theodoxus wesselinghi Sands & Gl\xc3\xb6er, sp. nov., and Theodoxus wilkei Sands & Gl\xc3\xb6er, sp. nov.), as well as shows the need to synonymise several previously described morphospecies. The present revision recognizes 14 extant Theodoxus spp. for Asia. Some of these species are widespread, while others are endemic to just a single location. Based on the revised and new distribution data, we provide updates and new assessments of species conservation statuses.
    Keywords: checklist ; conservation ; morphology ; Palearctic ; phylogenetics ; taxonomy ; Marie Sk\xc5\x82odowska-Curie Actions ; action: H2020-MSCA-ITN-2014 ; PRIDE ; grant agreement No: 642973
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  • 35
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    Impatiens marroninus, a new species of Impatiens (Balsaminaceae) from Sumatra, Indonesia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 10-11
    Details
    Publication Date: 2024-01-12
    Description: Impatiens marroninus Utami (Balsaminaceae), collected from Sumatra, Indonesia, is described and \nillustrated as a new species. The species belongs to subg. Impatiens sect. Kathetophyllon. It is characterized by \nopposite or whorled leaves, yellow flowers with red maroon stripes in the upper part of the two lateral petals, dark \ngreen leaves and the lower sepal deeply navicular and constricted into a short curved spur. This combination of \nmorphological characters was previously unknown. Detailed description, illustration, phenology, IUCN conservation \nassessment and ecology of the species are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Balsaminaceae ; endemic ; Impatiens ; Indonesia ; new species ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 36
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    New species of Amorphophallus (Araceae) in the Philippines and an updated key (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 1-9
    Details
    Publication Date: 2024-01-12
    Description: The number of named Philippine species of the genus Amorphophallus (Araceae-Thomsonieae) amounts \nto 13 today. Three existing species names (not included in this count) cannot be attributed to presently recognized \nspecies for lack of their holotypes, which were all destroyed in WWII. Five new species are described here and an \nidentification key to all species recognized from the Philippines is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Amorphophallus ; Araceae ; identification key ; new species ; Philippines ; taxonomy
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  • 37
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    A taxonomic revision of Trigonostemon (Euphorbiaceae) outside Malesia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 25-52
    Details
    Publication Date: 2024-01-12
    Description: The Trigonostemon species outside Malesia are taxonomically revised based on herbarium collections \nand fresh material. The research history in the concerning regions, i.e., the Indian subcontinent (including S India, \nSri Lanka, Bangladesh and Myanmar), China, Thailand, Indochina, NE Australia and New Caledonia, is briefly \nsummarised. A total of 32 species are accepted (including one doubtful species) and 17 names are newly treated \nas synonyms. Trigonostemon montanus is newly described for India. Regional identification keys, nomenclature, \ndescriptions, geographic distributions and taxonomic notes are provided. Together with our previous work, the \ngenus is now fully revised. A total of 59 species are accepted. A full identification list of all Trigonostemon collections seen is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Euphorbiaceae ; identification ; morphological revision ; non-Malesian ; taxonomy ; Trigonostemon
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  • 38
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    High diversity of Diaporthe species associated with pear shoot canker in China (2020)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 45, pp. 132-162
    Details
    Publication Date: 2024-05-06
    Description: Species of Diaporthe (syn. Phomopsis) are important endophytes, saprobes and pathogens, infecting a wide range of plants and resulting in important crop diseases. However, the species occurring on pear remain largely unresolved. In this study, a total of 453 Diaporthe isolates were obtained from branches of Pyrus plants (including P. bretschneideri, P. communis, P. pyrifolia and P. ussuriensis collected from 12 provinces in China) showing shoot canker symptoms. Phylogenetic analyses based on five loci (ITS, TEF, CAL, HIS, and TUB) coupled with morphology of 113 representative isolates revealed that 19 Diaporthe species were isolated, representing 13 known species (including D. caryae, D. cercidis, D. citrichinensis, D. eres, D. fusicola, D. ganjae, D. hongkongensis, D. padina, D. pescicola, D. sojae, D. taoicola, D. unshiuensis and D. velutina) and six new species described here as D. acuta, D. chongqingensis, D. fulvicolor, D. parvae, D. spinosa and D. zaobaisu. Although Koch’s postulates confirmed all species to be pathogenic, a high degree of variation in aggressiveness was observed. Moreover, these species have a high diversity, plasticity, and prevalence related to the geographical location and pear species involved.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; multi-gene phylogeny ; pathogenicity ; Pyrus ; six new taxa ; taxonomy
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  • 39
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    Cytospora (Diaporthales) in China (2020)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 45, pp. 1-45
    Details
    Publication Date: 2024-05-05
    Description: Members of the genus Cytospora are often reported as endophytes, saprobes or phytopathogens, primarily causing canker diseases of woody host plants. They occur on a wide range of hosts and have a worldwide distribution. Although several species have in the past been reported from China, the vast majority are not known from culture or DNA phylogeny. The primary aim of the present study was thus to clarify the taxonomy and phylogeny of a large collection of Cytospora species associated with diverse hosts in China. Cytospora spp. were collected in northeast, northwest, north and southwest China, indicating that the cold and dry environments favour these fungi. In this paper, we provide an assessment of 52 Cytospora spp. in China, focussing on 40 species represented by 88 isolates from 28 host genera. Based on a combination of morphology and a six-locus phylogeny (ITS, LSU, act1, rpb2, tef1-α and tub2), 13 new species and one new combination are introduced. The majority of the species investigated here appear to be host-specific, although further collections and pathogenicity studies will be required to confirm this conclusion.
    Keywords: canker disease ; new taxa ; plant pathogen ; systematics ; taxonomy ; Valsa
    Repository Name: National Museum of Natural History, Netherlands
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  • 40
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    Fungal associates of an invasive pine-infesting bark beetle, Dendroctonus valens, including seven new Ophiostomatalean fungi (2020)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 45, pp. 177-195
    Details
    Publication Date: 2024-05-08
    Description: The red turpentine beetle (RTB; Dendroctonus valens) is a bark beetle that is native to Central and North America. This insect is well-known to live in association with a large number of Ophiostomatalean fungi. The beetle is considered a minor pest in its native range, but has killed millions of indigenous pine trees in China after its appearance in that country in the late 1990s. In order to increase the base of knowledge regarding the RTB and its symbionts, surveys of the beetle’s fungal associates were initially undertaken in China, and in a subsequent study in its native range in NorthAmerica.Atotal of 30 Ophiostomatalean species that included several undescribed taxa, were identified in these surveys. In the present study, seven of the undescribed taxa collected during the surveys were further characterised based on their morphological characteristics and multi-gene phylogenies. We proceeded to describe five of these as novel Leptographium spp. and two as new species of Ophiostoma. Four of the Leptographium spp. resided in the G. galeiformis-species complex, while one formed part of the L. olivaceumspecies complex. One Ophiostoma sp. was a member of the O. ips-species complex, while the only new species from China was closely related to O. floccosum. Two of the previously undescribed taxa from North America were shown to be congeneric with L. terebrantis, implying that this species was most often isolated in association with the RTB in North America. The undescribed taxon from North America was identified as O. ips, and like L. terebrantis, this species was also not recognized during the initial North American survey. Resolving the identities of these taxa provides essential baseline information to better understand the movement of fungal pathogens with this beetle. This then enhances our ability to accurately assess and predict the risks of invasions by these and related fungi.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; invasion biology ; phylogenetics ; Scolytinae ; seven new taxa ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 41
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    Senecio beltranii (Asteraceae, Senecioneae): a new caespitose species endemic to South Peru (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 162-166
    Details
    Publication Date: 2024-04-02
    Description: Senecio beltranii, a new species of Asteraceae (Senecioneae) belonging to S. ser. Suffruticosi subser. Caespitosi, is described from the highland mountains of southern Peru. Morphologically, S. beltranii is similar to S. algens, but can easily be distinguished by its subshrub matt-forming habit, the presence of scattered papillose trichomes on stems and leaves, its pinnatilobate leaf shape, larger involucre and pedicel length, calycular bracts nearly glabrous, larger phyllary length and by the larger number of phyllaries. The major differences between the species are outlined in a morphological comparison table and discussed. The IUCN status is defined as Vulnerable (VU).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Asteraceae ; Senecio subser. Caespitosi ; South America ; taxonomy
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  • 42
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    Taxonomic revision of Dehaasia (Lauraceae) in Sumatra (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 167-175
    Details
    Publication Date: 2024-01-12
    Description: A revision of Dehaasia (Lauraceae) in Sumatra is presented. Eight species are recognized, including \ntwo newly described species (D. bandaharense and D. pilosa). Akey to the eight species, descriptions and distribution maps of each species and illustrations of newly described species are provided. A neotype for D. incrassata \nis designated.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Dehaasia ; Lauraceae ; revision ; Sumatra ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 43
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    Peliosanthes macrophylla var. assamensis (Asparagaceae), a new variety from Behali Reserve Forest in Assam, Northeast India (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 121-125
    Details
    Publication Date: 2024-01-12
    Description: Peliosanthes macrophylla var. assamensis, a new variety from Behali Reserve Forest in Assam, Northeast \nIndia, is described with accompanying photos and relevant taxonomic data. It differs from var. macrophylla from \nArunachal Pradesh and Sikkim, Northeast India, mainly by the staminal corona internally protruding near the middle \n(vs internally upright corona without a particular inward protrusion), shorter anthers somewhat divergent distally \n(vs nearly upright anthers), and longer, papillulate pistils exceeding the anthers (vs glabrous pistils not exceeding the \nanthers).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Asparagaceae ; Eastern Himalayas ; floral structure ; new variety ; Peliosanthes macrophylla ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 44
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    The Pleuranthodium (Zingiberaceae) of Mount Wilhelm, Papua New Guinea (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 95-101
    Details
    Publication Date: 2024-01-12
    Description: Three species of Pleuranthodium were encountered and collected during a survey of gingers at Mount \nWilhelm, Chimbu Province, Papua New Guinea. Based on new material, the only previously known Pleuranthodium \nfrom this area, P. piundaundense, is described in more detail highlighting new diagnostic characters and its known \ndistribution range is expanded based on identification of older specimens at Edinburgh from two other provinces. \nTwo species so far only known from Mount Wilhelm could not be identified after studying all protologues, types and \nmaterial from several herbaria. These are here described as new species, P. corniculatum and P. sagittatum. A key \nwith both floral and vegetative characters is provided to all three species. Pleuranthodium corniculatum is distinct \nin having apical appendages on the calyx, and P. sagittatum has a wrinkled calyx. All species are described and \nillustrated, and conservation assessments are made.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Chimbu ; Eastern Highlands ; Pleuranthodium corniculatum ; Pleuranthodium piundaundense ; Pleuranthodium sagittatum ; taxonomy ; Zingiberaceae
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  • 45
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    A new species of Eurystyles (Orchidaceae: Spiranthinae) from Costa Rica (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 65-68
    Details
    Publication Date: 2024-01-12
    Description: Eurystyles comprises about 23 species ranging from Mexico to northernArgentina. Six species are recognized in Mexico and Central America and three in Costa Rica. A new species, named E. uxoris, is here described \nand illustrated based on Costa Rican material. The species is similar to Eurystyles auriculata and E. standleyi, \nhowever, it differs by the smaller plants up to 3 cm tall, smaller leaves of less than 1.6 cm long, flowers with brown \ndorsal sepal and brown lip apex, petals callose or thickened at apex, and a pandurate lip. Information about distribution, habitat, ecology, etymology and phenology of the new species is provided. An updated key to the Costa \nRican species of Eurystyles is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Eurystyles auriculata ; Eurystyles cornu-bovis ; Eurystyles standleyi ; floristics ; neotropics ; taxonomy
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  • 46
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    Taxonomic notes on Trigonostemon (Euphorbiaceae) in the Philippines (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 12-24
    Details
    Publication Date: 2024-01-12
    Description: Descriptions of five Trigonostemon species in the Philippines (four endemic) are updated with taxonomic \nnotes based on herbarium collections and field observations. A new species of Trigonostemon is described. All \nspecies treated here are illustrated with photos. The formerly uncertain species, T. stenophyllus, is now synonymized \nwith T. filiformis. In addition to T. pentandrus, three more Trigonostemon species are reported to cohabit with ants. \nA new identification key and an updated identification list of Trigonostemon species in the Philippines are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Euphorbiaceae ; Philippines ; revision ; taxonomy ; Trigonostemon
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  • 47
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    Dieback and decline pathogens of olive trees in South Africa (2020)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 45, pp. 196-220
    Details
    Publication Date: 2024-05-03
    Description: Trunk disease fungal pathogens reduce olive production globally by causing cankers, dieback, and other decline-related symptoms on olive trees. Very few fungi have been reported in association with olive dieback and decline in South Africa. Many of the fungal species reported from symptomatic olive trees in other countries have broad host ranges and are known to occur on other woody host plants in the Western Cape province, the main olive production region of South Africa. This survey investigated the diversity of fungi and symptoms associated with olive dieback and decline in South Africa. Isolations were made from internal wood symptoms of 145 European and 42 wild olive trees sampled in 10 and 9 districts, respectively. A total of 99 taxa were identified among 440 fungal isolates using combinations of morphological and molecular techniques. A new species of Pseudophaeomoniella, P. globosa, had the highest incidence, being recovered from 42.8 % of European and 54.8 % of wild olive samples. This species was recovered from 9 of the 10 districts where European olive trees were sampled and from all districts where wild olive trees were sampled. Members of the Phaeomoniellales (mainly P. globosa) were the most prevalent fungi in five of the seven symptom types considered, the only exceptions being twig dieback, where members of the Botryosphaeriaceae were more common, and soft/white rot where only Basidiomycota were recovered. Several of the species identified are known as pathogens of olives or other woody crops either in South Africa or elsewhere in the world, including species of Neofusicoccum, Phaeoacremonium, and Pleurostoma richardsiae. However, 81 of the 99 taxa identified have not previously been recorded on olive trees and have unknown interactions with this host. These taxa include one new genus and several putative new species, of which four are formally described as Celerioriella umnquma sp. nov., Pseudophaeomoniella globosa sp. nov., Vredendaliella oleae gen. & sp. nov., and Xenocylindrosporium margaritarum sp. nov.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Celerioriella ; five new taxa ; Olea europaea subsp. cuspidata ; Olea europaea subsp. europaea ; phylogenetics ; Pseudophaeomoniella ; taxonomy ; Vredendaliella ; Xenocylindrosporium
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  • 48
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    A morphological and phylogenetic evaluation of Marasmius sect. Globulares (Globulares-Sicci complex) with nine new taxa from the Neotropical Atlantic Forest (2020)
    Naturalis Biodiversity Center
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 44, pp. 240-277
    Details
    Publication Date: 2024-05-22
    Description: The largest and most recently emended Marasmius sect. Globulares (Globulares-Sicci complex) has increased in number of species annually while its infrasectional organization remains inconclusive. During forays in remnants of theAtlantic Rainforest in Brazil, 24 taxa of Marasmius belonging to sect. Globulares were collected from which nine are herein proposed as new: Marasmius altoribeirensis, M. ambicellularis, M. hobbitii, M. luteoolivaceus, M. neotropicalis, M. pallidibrunneus, M. pseudoniveoaffinis, M. rhabarbarinoides and M. venatifolius. We took this opportunity to evaluate sect. Globulares sensuAntonín & Noordel. in particular, combining morphological examination and both single and multilocus phylogenetic analyses using LSU and ITS data, including Neotropical samples to a broader and more globally distributed sampling of over 200 strains. Three different approaches were developed in order to better use the genetic information via Bayesian and Maximum Likelihood analyses. The implementation of these approaches resulted in: i) the phylogenetic placement of the new and known taxa herein studied among the other taxa of a wide sampling of the section; ii) the reconstruction of improved phylogenetic trees presenting more strongly supported resolution especially from intermediate to deep nodes; iii) clearer evidence indicating that the series within sect. Sicci and sect. Globulares in the traditional concept are non-monophyletic by this more stringent evaluation; and iv) the existence of several monophyletic suprespecific groups equivalent to the stirpes of Singer – clusters of morphologically similar species. These two latter points corroborate with findings of previous studies implementing analyses with the entire genus. Based on these results, we proposed a new infrasectional classification elevating Singer’s concept of stirpes to series. Thirteen new series, the emendation of three extant series and three subsections gathering these series based on the major clades are proposed.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Agaricales ; Marasmiaceae ; Neotropics ; phylogenetics ; stirpes ; systematics ; taxonomy
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  • 49
    Electronic Resource
    Electronic Resource
    Verbindungen von Komplexen Cyaniden mit Quecksilbercyanid (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 111-112 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080109
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  • 50
    Electronic Resource
    Electronic Resource
    Die chemischen Vorgänge in Lösungen und ihre Geschwindigkeit (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 149-188 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A. 1.Gelegentlich der Besprechung der Reaktionsgeschwindigkeit in Gasen wird das Wesen der Quantentheorie anläßlich der NERNST-schen Konstanten als bedingt erkannt durch Stufung der Raumerfüllung, ganz, wie eine natürliche Stufung der Massen  -  in der Existenz der Atome  -  bereits bekannt ist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060111
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  • 51
    Electronic Resource
    Electronic Resource
    Zur Bestimmung der Phosphorsäure als Magnesiumpyrophosphat (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 268-280 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060115
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  • 52
    Electronic Resource
    Electronic Resource
    Zur Theorie der magmatischen Mineralisatoren (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 229-267 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Von der Vorstellung ausgehend, daß das Wasser der hauptsächlichste Mineralisator bei Eruptivgesteinsbildungen sei und das Magma eine wenn auch stark konzentrierte wässerige Lösung, wurden die für die gewöhnlichen wässerigen Lösungen geltenden Prinzipien auf die magmatische Lösung übertragen. Da wir in einer Lösung jeden beliebigen Lösungsgenossen als Lösungsmittel auffassen können, wurden die Mineralisatoren derart betrachtet, daß wir jeden derselben der Reihe nach als Lösungsmittel aufzufassen suchten.
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    URL: http://dx.doi.org/10.1002/zaac.19191060114
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    Über den Art- und Mengennachweis des Molybdäns im Stahl und Eisen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 73-80 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080107
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    Beiträge zur systematischen Verwandtschaftslehre X. Über Die Temperaturabhängigkeit der Valenzzahl. III (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 132-144 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19191090111
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    Über Schmelz-, Erstarrungs- und Siedeerscheinungen von Gemischen aus Salmiak und anderen Chloriden (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 145-186 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 18 Ill.
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    URL: http://dx.doi.org/10.1002/zaac.19191090112
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    Über die Ammoniumpentahalogenorutheniate. Bemerkungen zu der Abhandlung der Herren F. Mylius und A. Mazzucchelli: „Über die Platinanalyse“ (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 187-212 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19191090113
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    Das Vorkommen des Polyhalits im älteren Zechsteinkalisalzlager, im Zusammenhange mit den Angaben van't Hoffs (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 167-170 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die über das Vorkommen des primären und sekundären Polyhalits ausgeführten Untersuchungen stimmen mit den Angaben VAN'T HOFFS in vielem überein. Mit Ausnahme der carnallithaltigen Lagerteile kann der Polyhalit, in größeren oder geringeren Mengen, fast in allen kalihaltigen Teilen des älteren Zechsteinsalzlagers angetroffen werden. Als primär abgelagertes Salz tritt er hauptsächlich im stellenweise entwickelten polyhalitischen Steinsalz (Polyhalit-Halit) auf. In der kieseritischen Übergangszone (Hangend-Polyhalit) des Staßfurter Carnallitlagers treffen wir in der Gestalt des Anhydrits, Kieserits, Sylvins und Carnallits bereits nur sekundäre Umwandlungsprodukte dieses primären Polyhalits vor. Es haben eingesickerte Laugen des fortschreitenden Eintrocknungsvorganges, als auch die in der Tiefe erfolgte Einwirkung chlormagnesiagesättigter Laugen des Carnallitgebietes zu diesen Umwandlungsvorgängen beigetragen.
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    Beiträge zur Atomistik Nr. II. Eine Deutung der Raumerfüllungszahlen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 46-48 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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    Berechnung der Nullpunktsdichte einiger Elemente (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 171-174 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19191050112
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    Über kristallisierte Substanzen mit kolloidalen Eigenschaften. Über die basischen Zirkonsulfate und den molekularen Zustand des Zirkonsulfats in wäßriger Lösung (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 1-8 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19191060102
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    Arbeiten im Gebiet hoher Temperaturen. XII. Die Messung von Dampfspannungen bei sehr hohen Temperaturen nebst einigen Beobachtungen über die Löslichkeit von Kohlenstoff in Metallen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 76-94 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird ein dynamisches Verfahren zur Messung von Dampfdrucken in Kohlerohrwiderstandsofen für Temperaturen über 1200° beschrieben.
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    Über die Autoxydation des Natriumamids (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 44-48 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19191080104
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    Zum Gedächtnis der Entdeckung des Isomorphismus vor 100 Jahren. Die chemischen und galvanischen Eigenschaften von Mischkristallreihen und ihre Atomverteilung (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 107 (1919), S. 1-239 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Übersicht S.1.- 1. Die regellose Verteilung zweier Molekülarten S.9.-2. Die regelmäßigen Verteilungen zweier Atomarten in Raumgittern S. 15.-3. Die bei der Extraktion mit Salpetersäure verbleibenden Rückstände der Gold - Silber- und Gold -Kupferlegierungen S. 49. - 4. Vorläufige Bestimmung der Einwirkungsgrenzen von schwefelhaltigen Agentien und schwachen Oxydationsmitteln auf die Cu-Au-Mischkristalle und der Einfluß der Temperatur auf diese Einwirkungsgrenzen S. 57 - 5. Genauere Bestimmung der Einwirkungsgrenzen auf die Cu-Au- und Ag-Au-Mischkristalle in Abhängigkeit von der Natur der chemischen Agentien S. 62. - 6. Über die Löslichkeit von Wasserstoff in Palladiummischkristallen S. 89. - 7. Deutung der Einwirkungsgrenzen S. 96. - 8. Das Verhalten der ternären Mischkristalle von Cu, Ag und Au gegen chemische Agentien und ihre Farben S. 107. - 9. Die Einwirkungsgrenzen der Mischkristalle des Vanadins und Siliciums mit Eisen S. 118.-10. Die galvanischen Spannungen der Legierungen S. 136.- 11. Angenäherte Bestimmung der Einwirkungsgrenzen auf die Mischkristallreihen des Mn mit Ag und die des Mg mit Ag S. 169. - 12. Über den Einfluß der Kaltbearbeitung auf die chemischen Einwirkungsgrenzen S. 171. - 13. Zusammenfassung der Resultate, betreffend die Einwirkungsgrenzen und Übersicht ihrer Deutung S. 186. - 14. Über den atomistischen Aufbau nichtmetallischer Mischkristalle S. 186.- 15. Die normale Molekülverteilung in Mischkristallen als Ursache ihrer anomalen Doppelbrechung S. 208. - 16. Isomere metallische Mischkristalle S. 217.-17. Bemerkungen über „Säure“ beständige Legierungen S.235.- Schlußwort S.237.
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    Mitteilungen aus dem Institut für physikalische Chemie das Universität Göttingen. Nr. 7. Über einige Schmelzkurven, das Zustandsdiagramm des Resorcins und die Zustandsdiagramme einiger Kryohydrate (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 1-43 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es wurden durch Feststellung von p-Linien die Koordinaten der Schmelzkurven von Betol, Triphenylmethan, Erythrit Guajakol, Salol und Benzoesäureanhydrid bestimmt.
    Additional Material: 16 Ill.
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    Ableitung der chemischen Verwandtschaft aus der Elektronenthorie (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 137-160 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 17 Ill.
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    Platotriaminsulfit (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 211-214 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19191080116
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    Beiträge zur Theorie der elektrolytischen Ionen. Nr. 9. Raumerfüllung und Beweglichkeit einwertiger organischer Kationen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 175-186 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 5 Ill.
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    Über das Gadolinium. Trennungsmethoden in der Reihe der Terbin- und Yttererden (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 1-30 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A. Es wurden folgende Methoden zur Darstellung des Gadoliniums geprüft: 1Die Alkalidoppelsulfatmethode.Die Methode erweist sich zur Darstellung des Gadoliniums nur bedingt als brauchbar. Ihre unbequeme Handhabung verbietet eine erschöpfende Anwendung zur Darstellung einer Einzelerde. Dagegen vermag sie gut Dienste zu leisten, wenn es sich darum handelt, ein umfangreiches schwachgadoliniumhaltiges Material in zwei Teile zu teilen, in deren einem man das Gadolinium konzentrieren kann.2Die Hydrazindoppelsulfatmethode.Diese Methode wurde neu ausgearbeitet; sie wirkt der Alkalidoppelsulfatemethode analog und in dem gleichen Sinne. Sie hat gegenüber jener den Vorzug, daß man die Menge der abzuscheidenden Erden in der Hand hat.Es werden die Hydrazindoppelsulfate einiger typischer Erden dargestellt und ihre Zusammensetzung durch Analyse ermittelt.3Die fraktionierte Kristallisation der Bromate.Diese von C. James zuerst angegebene Methode eignet sich in hervorragender Weise zur Trennung der Terbinerden von den Yttererden. Die Scheidung verläuft schnell und gestattet das Arbeiten in größtem Maßstabe, infolge der großen Löslichkeit und guten Kristallisationsfähigkeit der Bromate. Man kann jedoch mit ihr keine Trennung der Ceriterden von den Terbinerden erzielen, da die Löslichkeit des Gadoliniumbromats zwischen den Löslichkeiten von Samarium und Neodymbromat liegt. Die Methode muß also mit einer anderen, zur Abscheidung der Ceriterden dienenden verbunden werden.
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    I. Verdampfungs- und Kondensationsgeschwindigkeit und die Berechnung der chemischen Konstanten aus den Dichten der Kondensate (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 97-111 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Aus der Molekulartheorie und Thermodynamik und der Theorie der chemischen Reaktionsgeschwindigkeit werden die Formeln für einen einfachen Grenzfall der letzteren, Verdampfungs- und Kondensationsgeschwindigkeit abgeleitet und gezeigt, wie man beide Größen nach Betrag und Temperaturabhängigkeit berechnen kann bei Kenntnis der Verdampfungs- und Molarwärmen, des Molekulargewichts, des Molekulardurchmessers, der Kondensatdichte und genau genommen der Packungsweise.
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    Zur Kenntnis des Graphitischen Kohlenstoffs und der Graphitsäure (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 121-144 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es wurden die Entstehungsbedingungen und Eigenschaften der Kohlenarten untersucht, die auf verschiedene Weise aus Graphitsäure erhalten werden. Dabei werden unter „Graphitsäure“ die festen Oxydationsprodukt verstanden, die aus einem reinen, elektrisch gewonnene Graphit mit einer Mischung von Salpetersäure, Schwefelsäure und Chlorat nach einem Normalverfahren erhalten wurden, ohne Rücksicht auf das Stadium der Einwirkung auf den Graphit.
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    Über die chemischen Gleichgewichte zwischen Bleisulfid und seinen Röstprodukten. I (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 145-166 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Die Messungen der Reaktionstensionen, welche bei der Umsetzung von Schwefelblei mit seinen Oxydationsprodukten auftreten, wurden mit Erhitzungsröhrchen aus Calciumphosphat wiederholt. Dadurch werden die Fehler, welche bei der Verwendung von Silikatgefäßen auftreten, vermieden.
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    Über Ternäre Legierungen des Aluminiums mit Magnesium und Kupfer (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 107 (1919), S. 265-307 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 20 Ill.
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    Plate (1919)
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    Zeitschrift für anorganische Chemie 107 (1919), S. I 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Additional Material: 22 Ill.
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    Masthead (1919)
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    Zeitschrift für anorganische Chemie 108 (1919) 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Über die Einwirkung von Kupfer auf Natriumnitrit (1919)
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    Zeitschrift für anorganische Chemie 107 (1919), S. 313-316 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Ableitung des periodischen Systems der chemischen Elemente aus der Elektronentheorie (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 189-208 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 14 Ill.
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    Über Heuslersche Legierungen. Erster Teil. Über magnetisierbare Legierungen unmagnetischer Metalle (1919)
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    Zeitschrift für anorganische Chemie 108 (1919), S. 49-69 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 7 Ill.
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    Metallographische Mitteilungen aus dem physikalisch-chemischen Institut der Universität Göttingen XCV. Die Legierungen: Mangan-Wismut, Mangan-Zink und Mangan Silber (1919)
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    Zeitschrift für anorganische Chemie 108 (1919), S. 161-183 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Über Molybdänsäure-Brenzkatechinverbindugen (1919)
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    Zeitschrift für anorganische Chemie 108 (1919), S. 231-247 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    URL: http://dx.doi.org/10.1002/zaac.19191080119
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    Verbindungen der Molybdänsäure mit aromatischen ortho-Oxysäuren (Salizylsäure und α-Oxynaphthoesäure) (1919)
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    Zeitschrift für anorganische Chemie 108 (1919), S. 248-266 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Jodometrische Bestimmung des Chromsäuregehaltes der Bleichromate (1919)
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    Zeitschrift für anorganische Chemie 108 (1919), S. 267-272 
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080121
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  • 82
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    Der Basenaustausch im Permutit. II (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 215-225 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Versuche über den Basenaustausch im Permitit wurden fortgesetzt; beim Austausch des Kupfers gegen die Erdalkalien wurde die Unabhängigkeit von der Verdünnung für gleichwertige Ionen neuerdings bestätigt gefunden und gleichzeitig eine analoge Gesetzmäßigkeit im Verhalten der Homologen beim Austausch wie bei den Alkalien festgestellt. An der Reihe Silber-Barium wurde eine Formel für den Austausch zwischen ein- und zweiwertigen ionen erprobt und auch für die Reihe Natrium-Calcium gültig befunden; in dieser Reihe wurde außerdem eine Mischungslücke konstatiert und gezeigt, daß die Umwandlung der beiden festen Phasen  -  mindestens von einer Seite  -  beträchtliche Zeit braucht. Schließlich wurde noch am Austausch Silber-Lanthan gezeigt, daß auch dreiwertige Ionen zum Austausch befähigt sind und daß der Einfluß der Verdünnung hier besonders grß ist.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080117
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  • 83
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    Physikalisch-chemische Studien über die Röstprozesse. II. Gleichgewichte im System Blei-Schwefel-Sauerstoff. Bemerkungen über eine Arbeit von R. Schenck und A. Albers (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 52-62 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191090104
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  • 84
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    Über das Skandium (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 303-317 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080123
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  • 85
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    Beiträge zur Theorie der elektrolytischen Ionen Nr. 13. Über das Leitvermögen mehrwertiger und mehrstufiger Elektrolyte. Ergänzungen und Berichtigungen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 63-68 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191090105
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  • 86
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    Nomogramme für die Funktionen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 126-131 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191090110
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  • 87
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    Über die Auswertung von Dissoziationsmessungen bei Ammoniakaten nach dem Theorem von Nernst mit Hilfe von Nomogrammen (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 109 (1919), S. 111-125 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Aus den Dissoziationsmessungen der Verbindungen von Ammoniak mit Halogeniden der Mangan-, Eisen-, Kobalt-, Nickelreihe wurden nach der genauen Gleichung von NERNST: \documentclass{article}\pagestyle{empty}\begin{document}$$ \log p = - \frac{{Q_0 }}{{4.57{\rm }T}} + 1.75\,{\rm log }\,T + \frac{{\Sigma \nu \beta + \Sigma nb}}{{4.57}} \cdot T + 3.3 $$\end{document} die Werte Q0 und die Koeffizienten von T bestimmt.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191090109
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  • 88
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    Beiträge zur Theorie der elektrolytischen Ionen. Nr. II. Über die Grenzwerte des molaren Leitvermögens und die Regeln sie aufzufinden (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 81-110 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. In der vorstehenden Arbeit wird die Frage aufgeworfen, wie genau die Grenzwerte des molaren Leitvermögens μ∞ bei den organischen Ionen bekannt sind. Dieselben wurden bisher aus den bei verschiedenen Verdünnungen (32, 64, 128, 256, 512, 1024) gemessenen Werten des molaren Leitvermögens μ nach der sogen. OSTWALD-BREDIGschen Regel dadurch extrapoliert, daß man nach einer von diesen Forschern gegebenen, auf empirischem Wege gefundenen Tabelle zu jedem Werte von μ ein Zahl addiert and nach der Gleichung \documentclass{article}\pagestyle{empty}\begin{document}$$ \mu _\infty ^ - = \mu + \Delta $$\end{document} den Wert von μ∞ findet.
    Additional Material: 12 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080108
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  • 89
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    Ist das Verhältnis der Atomgewichte 0 = 16: Ag = 107.88 richtig?? (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 113-118 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080110
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  • 90
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    Platinitetramindisulfit (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 184-190 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080114
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  • 91
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    Zur Kenntnis des Molekularvolums (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 226-230 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080118
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  • 92
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    Berechnungen zum Ammoniakgasgleichgewicht (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 108 (1919), S. 273-302 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus den vorhergehenden Berechnungen ergeben sich folgende Zusammenstellungen im Vergleich mit der von HABER in der Zeitschrift für Elektrochemie 1914, 603 angegebenen Tabelle 4, welche sämtliche Ergebnisse von ihm und seinen Mitarbeitern zusammenfaßt.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191080122
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  • 93
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    Zur Kenntnis des gelben Kupferoxyduls (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 105 (1919), S. 112-120 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Die beste Darstellungsweise des gelben Cuprooxydes ist jene durch Reduktion von Cu″-Ion bei Gegenwart von OH′-Ion mittels salzsaurem Hydroxylamin und die elektrolytische Methode, welche zuerst von LORENZ angegeben wurde, mittels Reinkupferanode und Alkalisulfat als Elektrolyt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191050108
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  • 94
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    Masthead (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919) 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060101
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  • 95
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    Über die Konstitution der Ferrisalze der unterphosphorigen Säure (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 15-45 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060104
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  • 96
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    Der thermische Zerfall des Phosphins PH3 (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 95-125 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Der thermische Zerfall des Phosphins PH3 in H2 und P4 wurde zwischen T = 845 und T = 956 in großen Porzellankugeln manometrische zeitlich verfolgt. Oberhalb dieser Temperatur verlief er unmeßbar schnell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060108
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  • 97
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    Über Zirkoniumalkalisulfate (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 9-14 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060103
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  • 98
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    Beiträge zur Theorie der elektrolytischen lonen. Nr. 10. Über das Leitvermögen mehrwertiger und mehrstufiger Elektrolyte (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 49-75 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es werden die Formeln des molaren Leitvermögens und des Dissoziationsgrades mehrteiliger und mehrstufiger Elektrolyte im Sinne der üblichen Theorie der elektrolytischen Dissoziation (ARRHENIUS, OSTWALD, KOHLRAUSOH) entwickelt und eindeutig festgelegt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060106
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  • 99
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    Notiz · zu der Abhandlung über das System SiO2 (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 106 (1919), S. 143-148 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191060110
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    Masthead (1919)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 107 (1919) 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19191070101
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