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  • Articles  (812,148)
  • 1965-1969  (590,740)
  • 1950-1954  (221,408)
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  • 1
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 3 no. 9, pp. 148-148
    Publication Date: 2024-02-22
    Description: A second list of species found near Hellevoetsluis, prov. S. Holland, on heaps of stones used for the Delta-works. See also Gorteria 3 (4), 1966, p. 49\xe2\x80\x9451.
    Repository Name: National Museum of Natural History, Netherlands
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  • 2
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 4 no. 2, pp. 27-28
    Publication Date: 2024-02-22
    Description: The author mentions a second find of Lactuca tatarica (L.) C. A. Mey. in the harbour of Rotterdam in 1966, in a ruderal locality. The number of specimens increased in 1967.
    Repository Name: National Museum of Natural History, Netherlands
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  • 3
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    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 17 no. 2, pp. 303-311
    Publication Date: 2024-02-08
    Description: The area of distribution of most Myriophyllum species is insufficiently known. In this paper, many new localities are recorded for 16 species from SE. Asia, Malesia, Madagascar, and Africa, and a key is added. One species from New Guinea, M. coronatum, is described as new (fig. I). Of the other species the synonymy is complete, but no descriptions are given; of each the distribution and ecology is cited, and if necessary critical remarks are added.\nUnder the new species the second remark deals with the possible desirability of distinguishing subgenera or sections within the genus. It is concluded that, as the species show a reticulate affinity by parallelism, especially as regards reductions in both vegetative and sexual organs, the usefulness of distinguishing infrageneric taxa is debatable and not advisable.
    Repository Name: National Museum of Natural History, Netherlands
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  • 4
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 3 no. 13, pp. 209-211
    Publication Date: 2024-02-08
    Description: Two adventitious species of the genus Beckmannia Host have been found in the Netherlands. They can be distinguished as follows: 1. Stems mostly tuberously thickened at the base. Spikelets always 2-flowered (fig. 1, a). Glumes always more or less irregularly dentate at the mostly rounded and mostly very shortly acuminate apex, and with often very shortly ciliate margins, hardly swollen when ripe. Ripe stamens mostly distinctly exserted; anthers 1,6\xe2\x80\x942,1 mm long (fig. 1, b) B. eruciformis (L.) Host 1\xe2\x80\x99. Stems not thickened at the base. Spikelets 1-flowered (fig. 1, c); sometimes a few 2-flowered spikelets are present in the spike. Glumes entire at the acute and distinctly acuminate apex, and with glabrous margins, mostly rather strongly swollen when ripe. Ripe stamens mostly but slightly exserted; anthers 0,7\xe2\x80\x941,1 mm long (fig. 1, d) ... B. syzigachne (Steud.) Fern.
    Repository Name: National Museum of Natural History, Netherlands
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  • 5
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 4 no. 6/8, pp. 103-108
    Publication Date: 2024-02-08
    Description: Five species of Atriplex s.s. have been found as aliens in the Netherlands. In the following key the indigenous A. laciniata and the species belonging to the A. patula-complex have been included. Of the latter a tentative revision will appear next year. The key is to be used for dried plants with completely mature fruits only.
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
    Publication Date: 2024-01-12
    Description: Voorjaar 1949 ontving ik een kleine collectie levende vissen uit Suriname (Nederlands Guiana), door een zeeman verzameld in een poel nabij Paramaribo. Helaas is de juiste vindplaats niet nader aangegeven, dan enige kilometers ten zuiden van de hoofdstad.\nOnmiddellijk na ontvangst werden de vissen, die hier het onderwerp van bespreking zijn, in een groot gezelschapsaquarium (150 X 60 X 50 cm. hoog) ondergebracht, dat reeds werd bevolkt door verscheidene Nannostomini, Hasemania marginata, Rivulus cylindraceus, Acanthophthalmus kuhli, Dermogenus pusillus en Nannacara anomala en N. taenia.
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
    Publication Date: 2024-01-12
    Description: Cosmopsaltria agatha Moulton is removed from the synonymy of Orientopsaltria montivaga (Distant) and reallocated in Orientopsaltria. The drawings of the male genitalia facilitate the distinction of both species.
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
    Publication Date: 2024-01-12
    Description: A re-examination of the types of Lithobius occultus Silvestri, 1894, and Lithobius excellens Silvestri, 1894, from Italy, has shown that the two are based on specimens of the same species which takes the name of Eupolybothrus (Schizopolybothrus) excellens (Silvestri, 1894), and is probably most closely related to E. tabularum (Verhoeff, 1937). A tentative survey of the subgenera of the genus Eupolybothrus Verhoeff, 1907, is given, and a new subgenus, Leptopolybothrus nov. subgen., type-species Lithobius leptopus Latzel, 1880, is erected.
    Repository Name: National Museum of Natural History, Netherlands
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  • 9
    Publication Date: 2024-01-12
    Description: The myicolid copepod Pseudomyicola spinosus is reported from 22 new hosts (pelecypods) in Bermuda and the West Indies, from 1 new host (a pelecypod) in Madagascar, and from an ascidian (Pyuridae) in Cura\xc3\xa7ao (probably an accidental association). P. spinosus is redescribed, based on specimens from Isognomon alatus in Bermuda. Among 316 P. spinosus from Bermuda, Puerto Rico, Jamaica, Barbados, Brazil, Senegal, Madagascar, and Jugoslavia the dimensions of the body and caudal ramus varied widely. The ornamentation of the anal segment showed four different conditions of spination, and sometimes included an extra long ventral setule on either or both sides.\nThe specimens studied are regarded as one species, P. spinosus, without apparent subspecific differences. The following are considered as synonyms of P. spinosus: P. glaber Pearse, 1947, Myicola tageli Pearse, 1947, P. anomalocardiae Narchi, 1965, and P. mirabilis Humes, 1959.
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
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    In:  Bijdragen tot de dierkunde vol. 37 no. 1, pp. 3-10
    Publication Date: 2024-01-12
    Description: Extensive reports on losses in zoo animals are very rare. As fas as we know only London, Paris, Philadelphia and Washington give yearly reports. Of these London and Paris give very complete information. One of the reasons that so few zoos publish their results may be that it is always more pleasant to give information about successes than about failures.\nIn our opinion, however, it is no use to disguise the truth and for other zoos it can be very useful to have the opportunity to compare results. The period described in this paper is part of an important era in the history of our zoo, a period of reconstruction, rebuilding and, of increasing the collection. This period will last another 10-15 years or so as at that time the really old and worn-out buildings will have been replaced and appropriate facilities for the veterinarian will have been achieved. At the same time this period has seen great advances in veterinary care. The Cap-Chur pistol in use in our zoo since 1960 made injection possible of any animal at any time. The increasing arsenal of therapeutics and the international contacts by way of the international symposia on diseases of zoo animals have contributed largely to a better medical care of zoo animals. Thus prevention of diseases is becoming more and more important. In our opinion the effective disinfectant halamid (Chloraminum) plays an important r\xc3\xb4le in this respect.
    Repository Name: National Museum of Natural History, Netherlands
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