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  • 1
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    Investigations on SnS (1961)
    American Institute of Physics
    Details
    Publikationsdatum: 1961-10-01
    Print ISSN: 0021-8979
    Digitale ISSN: 1089-7550
    Thema: Physik
    Publiziert von American Institute of Physics
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  • 2
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    Couplage de spins et anomalies de chaleur Spécifique aux températures de l'hélium et de l'hydrõgène liquides pour l'acétate complexe [Cr3(CH3COO)6(OH)2] Cl.8H2O (1954)
    Elsevier
    Details
    Publikationsdatum: 1954-01-01
    Print ISSN: 0031-8914
    Digitale ISSN: 1873-1767
    Thema: Physik
    Publiziert von Elsevier
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    The importance of sports in some florist's flowers (1956)
    Springer
    Euphytica 5 (1956), S. 163-170 
    Details
    ISSN: 1573-5060
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Beschreibung / Inhaltsverzeichnis: Samenvatting Van vele op vegetatieve wijze vermenigvuldigde bloemisterijgewassen zijn knopmutanten bekend (tabel 1). Bij de anjers kwam tijdens de oorlog de gemakkelijk te telen ‘Peter Fisher’ naar voren. Dit ras met een tweetal sports overheersten direct na de oorlog, doch werden op hun beurt verdrongen door nieuwe rassen met hun knopmutanten. Thans heeft het anjerras ‘William Sim’ met enige knopmutanten een overheersende plaats (fig. 1 en 2). In een zestal jaren werden meer dan 50 knopmutanten, die ten dele in Nederland ontstaan zijn, in de handel gebracht. Enige knopmutanten bleken periklinale chimaeren te zijn. Zowel door colchicine-behandeling als door knopmutatie zijn tetraploïde vormen ontstaan. Bij de kasrozen zijn sports van de theehybriden ‘Columbia’ en ‘Ophelia’ sterk op de voorgrond getreden. Ook van vele andere snijbloemen en tal van potplanten zijn knopmutanten bekend geworden. Bij Azalia indica zijn, evenals bij de anjers en rozen, vooral knopmutanten van veel geteelde rassen bekend geworden. Deze sports zijn eerder waardevol dan die van de minder geteelde rassen.
    Notizen: Summary Bud sports are known in many florist's flowers which are vegetatively propagated (Table 1). Among carnations the variety ‘Peter Fisher’ came to the fore during the war. This variety together with two of its sports held a dominating position immediately after the war, but in their turn they were superseded by new varieties and their bud sports. At present the carnation ‘William Sim’ with some bud sports are dominant (Figs 1 and 2). Within only 6 years more than 50 bud sports were introduced. Some of them originated in the Netherlands. Some bud sports appeared to be periclinal chimaeras. Tetraploid forms have been created by colchicine treatment as well as by bud mutation. In glasshouse roses sports of the hybrid tea varieties ‘Columbia’ and ‘Ophelia’ have come to the fore. Bud sports have also become known of many other cut flowers and of numerous pot plants. In Azalea indica, as well as in carnations and roses, bud sports especially of widely grown varieties have been introduced. The latter have more chance to be fancied than those which are derived from varieties that are not in vogue.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00022074
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  • 4
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    Nyssaceae (1948)
    In:  Flora Malesiana - Series 1, Spermatophyta (0374-7778) vol.4 (1948) nr.1 p.29
    Details
    Publikationsdatum: 2015-04-20
    Beschreibung: Dioecious trees or shrubs. Leaves simple, scattered. Stipules O. Flowers unisexual, often in heads, in the axils of a bract and with 2 bracteoles. ♂: in axillary heads or short racemes; calyx entire or 5-toothed; petals 5, imbricate, often small, alternate with the calyx; stamens 8-16 in 2 alternating whorls; anthers small, dorsifixed with lateral lengthwise slits; disk pulvinate; style rudimentary. ♀: solitary, axillary or in 2-10-flowered heads; ovary inferior, 1-locular, connate with the 5-toothed or entire calyx; petals 5-8 often minute; stamens of inner whorl partly sterile, both petals and anthers soon dropping; style with 2 appressed later divergent often torulose branches stigmatose on their inside, brittle, often deficient in the herbarium. Ovule 1, hanging from the apex of the cell, anatropous with 2 integuments. Fruit drupaceous ovoid to oblong. Distr. Ca 6 spp., 4 in Atlantic N. America, 1 in China, 1 from India to W. Malaysia.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: Article / Letter to the editor
    Format: application/pdf
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  • 5
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    The distribution of Korthalsella Dacrydii (1941)
    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (0006-5196) vol.4 (1941) nr.2 p.320
    Details
    Publikationsdatum: 2015-03-06
    Beschreibung: Korthalsella Dacrydii (RIDLEY) DANSER, the only species of its genus that is parasitic on Conifers, was, up to the present, only known from two mountains, viz., Mt. Tahan in the Malay Peninsula, and Mt. Gede in Java. For the latter mountain it was, for the first time, not discovered in the living state, but, by Dr VAN STEENIS, on herbarium specimens of Podocarpus imbricata, collected by KOORDERS and VAN DER HOEVEN in 1890. Later it was collected several times on Mt. Gede in the living state. While examining the materials of Podocarpus and Dacrydium of the Leiden, Buitenzorg, and Groningen Herbaria, I was so fortunate as to discover, in the same way as Dr VAN STEENIS did, several new localities of Korthalsella Dacrydii, and these not only in Java, but also in Sumatra, Borneo, and Timor. The localities now known are the following.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: Article / Letter to the editor
    Format: application/pdf
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  • 6
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    The distribution of Korthalsella Dacrydii (1941)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 4 no. 2, pp. 320-321
    Details
    Publikationsdatum: 2024-01-12
    Beschreibung: Korthalsella Dacrydii (RIDLEY) DANSER, the only species of its genus that is parasitic on Conifers, was, up to the present, only known from two mountains, viz., Mt. Tahan in the Malay Peninsula, and Mt. Gede in Java. For the latter mountain it was, for the first time, not discovered in the living state, but, by Dr VAN STEENIS, on herbarium specimens of Podocarpus imbricata, collected by KOORDERS and VAN DER HOEVEN in 1890. Later it was collected several times on Mt. Gede in the living state.\nWhile examining the materials of Podocarpus and Dacrydium of the Leiden, Buitenzorg, and Groningen Herbaria, I was so fortunate as to discover, in the same way as Dr VAN STEENIS did, several new localities of Korthalsella Dacrydii, and these not only in Java, but also in Sumatra, Borneo, and Timor. The localities now known are the following.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
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  • 7
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    The genus Nyssa in the Netherlands Indies (1935)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 1 no. 2, pp. 343-350
    Details
    Publikationsdatum: 2024-01-12
    Beschreibung: The herbarium materials on which this publication is based were kindly put at the author\xe2\x80\x99s disposal by the Directions of the following Institutes: (B) = the Herbarium of the Botanic Garden, Buitenzorg. (BD) = the Herbarium of the Botanic Garden, Berlin\xe2\x80\x94Dahlem. (L) = the National Herbarium (Rijksherbarium), Leiden. (S) = the Herbarium of the Botanic Garden, Singapore. (U) = the Herbarium of the University, Utrecht.\nThe author feels very thankful to the Directions of these Institutes for sending the herbarium materials on loan and thus making this publication possible.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
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  • 8
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    Nyssaceae (1948)
    In:  Flora Malesiana - Series 1, Spermatophyta vol. 4 no. 1, pp. 29-31
    Details
    Publikationsdatum: 2024-01-12
    Beschreibung: Dioecious trees or shrubs. Leaves simple, scattered. Stipules O. Flowers unisexual, often in heads, in the axils of a bract and with 2 bracteoles. \xe2\x99\x82: in axillary heads or short racemes; calyx entire or 5-toothed; petals 5, imbricate, often small, alternate with the calyx; stamens 8-16 in 2 alternating whorls; anthers small, dorsifixed with lateral lengthwise slits; disk pulvinate; style rudimentary. \xe2\x99\x80: solitary, axillary or in 2-10-flowered heads; ovary inferior, 1-locular, connate with the 5-toothed or entire calyx; petals 5-8 often minute; stamens of inner whorl partly sterile, both petals and anthers soon dropping; style with 2 appressed later divergent often torulose branches stigmatose on their inside, brittle, often deficient in the herbarium. Ovule 1, hanging from the apex of the cell, anatropous with 2 integuments. Fruit drupaceous ovoid to oblong.\nDistr. Ca 6 spp., 4 in Atlantic N. America, 1 in China, 1 from India to W. Malaysia.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
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  • 9
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    The genus Podocarpus in the Netherlands Indies (1941)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 4 no. 3, pp. 359-481
    Details
    Publikationsdatum: 2024-01-12
    Beschreibung: When delimiting the area to be dealt with in this paper, it appeared, on the one hand, desirable to include some adjacent regions, such as the Malay Peninsula, North Borneo, Eastern New Guinea, the Bismarck Archipelago, and the Solomon Islands; on the other hand the war made it impossible to obtain herbarium materials from several Herbaria in Europe and the Tropics, and to elaborate the genus Podocarpus for the whole of Malaysia. Especially the Philippine Islands could not be taken into consideration, but the few materials I had the opportunity of examining have been included. I believe this treatment of the genus Podocarpus is rather complete for the Netherlands Indies proper.\nThe specimens which I could examine in Groningen were lent by the Directors of the following Herbaria: (B) = the Herbarium of the Botanic Garden, Buitenzorg. (BD) = the Herbarium of the Botanical Museum, Berlin-Dahlem. (G) = the Herbarium of the University, Groningen. (L) = the National Herbarium (Rijksherbarium), Leiden. (Pa) = the Herbarium of the Sugar Experiment Station, Pasoeroean. (S) = the Herbarium of the Botanic Garden, Singapore. (U) = the Herbarium of the University, Utrecht. (W) = the Herbarium of the University College of Agriculture, Wageningen.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
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