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| Registros recuperados: 91 | |
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| Buitendijk, A.M.. |
| De Haan (1833, p. 22-23, tab. B (Eudora) tenax (mouthparts)) gives the following latin description of his subgenus Eudora: "Os quadratum. Max. 5arum articuli secundi paralleli, medio in longitudinem sulcati, apice truncati; articuli tertii dilatati, margine superiore emarginati; articuli apicales abbreviati1). Max. 3iarum laciniae externae supra medium, paulum dilatatae, apice emarginatae. Max. 2arum lobi interni in laciniis interioribus externis multo breviores. Thorax vix dimidio latior quam longior, dorso convexus. Chelae crassae, in utroque sexu inaequales, sinistra minor. Abdomen in utroque sexu 7-articulatum; in maribus angusto-parallelum; articulus tertius prioribus latior; articuli versus apicem sexti sinuato-angustiores; sextus quadratus; Septimus... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/319147 |
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| Lam, H.J.. |
| Now that the war in Europe is over it seems appropriate, before returning to our regular duties, to devote soms words to the fate and the activities of our institution during that period. For Dutch readers many particulars may be found in the “Jaarverslagen” (Annual Reports) ; for sister-institutions abroad the following points may be of some interest. First of all it may be stated with deep gratitude that the National Herbarium of Holland has suffered no severe losses in man or material during the war. |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525326 |
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| Herzog, Th.. |
| Tota breviter scabrido-pilosa. Radix multiceps. Caules 12—20 cm alti, adscendentes vel erecti, interne microphyllini, demum defoliati, striati. Folia alterna, brevissime petiolata, intima circa 3 mm diametentia, firma, subtus purpurascentia, superiora sensim accrescentia, ad 1.5 cm longa, 12 mm lata, orbiculari-ovata, basi et apice obtusa, apiculata, firma; floralia sterilibus similia et vix majora. Umbellae radii 3—5. Cyathium pedunculo ad 2 mm longo suffultum, extus brevissime, intus longe pilosum ; lobi apice laciniati; glandulae 4, extus subtruncatae, supra concavae; bracteae florum ♂ longe pilosae. Styli fere ad medium bilobi, cruribus apice capitatis. Capsula circa 3 mm longa, 5 mm lata, breviter pilosa. Semina circa 3 mm longa, dorso carinata,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525496 |
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| Hooijer, D.A.. |
| Some time ago Dr. L. D. Brongersma, curator of the Leiden Museum, entrusted me for examination some subfossil equine teeth, received from Mr. H. van Hoepen, who had found them between Glen and Mazelspoort, in Orange Free State. The teeth proved to belong all to one and the same individual, and to constitute the entire upper premolar-molar-series of the right side, almost undamaged. The importance of this find is evident, as most of the fossil or subfossil equine species from S. Africa are based on isolated teeth. An inner view of our specimen is given in pl. VI lower figure, the crown surfaces are represented in the upper figure of the same plate. It can be seen, that the P4 is the longest tooth, its height is 72 mm. The mesostyle is prominent, and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22; 42.84. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318787 |
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| Ooststroom, S.J. van. |
| Frutex scandens. Caules in statu florigero foliis destituti, internodiis longis, usque ad 18 cm metientibus, in nodis ramulos laterales breves vel apicem versus inflorescentias emittentes. Ramuli laterales folia nonnulla vel inflorescentias gerentes, internodiis multo brevioribus vel brevissimis. Caules teretes vel juniores obscure angulati, griseo-brunnei, in sicco longitudinaliter hinc inde transversaliter rugosi, juniores pilis brevibus adpressis praediti, adultiores glabri, plusminusve verrucosi (lenticellati). Folia petiolata ; petiolo breviter et adpresse piloso ut in partibus junioribus caulis, supra sulcato, ad 6 cm longo; lamina ovato-oblonga, apice breviter acuminata, basi ± rotundata (vel in foliis junioribus late cuneata), nervis exceptis... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525857 |
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| Lam, H.J.. |
| In one of his papers on Malaysian Orchids R. Schleehter (1911) expresses his surprise that the flora of Celebes, though promising so much from a phytogeographical point of view, is very little known in comparison with that of the Philippines and Java and even with that of Borneo. In 1926 E. D. Merrill repeated this assumption with little less emphasis, and it is, indeed, still holding good even nowadays. I am not able to tell the reason why Celebes has been so much neglected in this respect, though it has been given ample attention by zoogeographers. Yet, botanical exploration has been carried out ever since the French scientific world cruises of the “Astrolabe” (1828) and the “Astrolabe” and the “Zelee” (1839). The more important collections have been... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/524741 |
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| Teunissen, H.C.M.. |
| Es war schon längst meine Absicht mich mit dieser Gattung zu befassen, weil sich im Leidener Museum eine grosse Sammlung befindet, welche durch Snellen van Vollenhoven damals von Holmgren käuflich erworben wurde. Die Tiere besitzen in meinen Augen einen paratypischen Wert. Erst heute bin ich imstande, das Ergebnis meiner Untersuchungen zu veröffentlichen, wobei ich besonders den Herren Professoren Dr. H. Boschma, Direktor des Rijksmuseum van Natuurlijke Historic, Leiden, und Dr. W. Roepke, Direktor des Entomologischen Laboratorium der Landbouwhoogeschool, Wageningen, grossen Dank schulde für die Bereitschaft, mit der sie das ihnen zuvertraute Material mir zur Verfügung gestellt haben. Den meisten Dank aber schulde ich Herrn Dr. A. Roman, den meist... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318910 |
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| Holthuis, L.B.. |
| In 1935 R. Zariquiey Cenarro published a paper in the Spanish language, in which he separated the specimens of Nephrops norvegicus occurring in the Mediterranean and the southern Atlantic Ocean as a separate variety meridionalis from the typical form of the northern Atlantic. In this paper he remarks that Boas as well as Bouvier stated that the second maxillipede of Nephrops norvegicus does not bear a podobranch. When Zariquiey, however, examined material from the Catalonian coast he found that in all his specimens a podobranch was present. For comparison with the northern forms he obtained an adult male and ovigerous female from Danish waters. In these specimens indeed the podobranch was absent, the maxillipede bearing only a rounded tubercle provided... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318115 |
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| Lam, H.J.. |
| We always have thoroughly detested the mentality of those scientific periodicals which deemed it proper to introduce politics into their columns. During the war we have repeatedly been offended by the unworthy attitude of the editorial staffs of certain botanical journals of “Greater Germany” who admitted — or possibly even deliberately furthered — perorations stating not only the marvellous achievements of nazi-methods and their amazing usefulness towards the particular field of science covered by the periodical in question, but the faith and the devotion of their persons towards the sacred cause of the nazi-system. We have, as I say, not exactly admired this mentality in a scientific paper and we will not follow the example. However, too much has... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525897 |
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| Pfeiffer, J.Ph.; Varossieau, W.W.. |
| 1. The literature gives various methods to compile a universal scheme for the classification and identification of wood species. To attain this object a new method is now given possessing various advantages over the methods that have been used so far. 2. The wood structure is subsequently described using decimal indices. Each of five sections of features are divided into four groups, and these again in subgroups, which have been worked out by means of indices. In the treatment of various features literature data are discussed. The classification of wood species aims at obtaining a grouping which, as far as possible, links up with the botanical groupings according to natural systems. 3. On the grounds given in the introduction and the discussion, the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/526100 |
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| Smith, J.J.. |
| In Blumea V (1943), 316, I published a list of the Orchidaceae collected by Dr van Steenis in Atjeh. In this list a certain number of specimens were purposely omitted, on account of the fact that flowers had been preserved in alcohol, which material, however, was apparently not extant in Leiden. Under these conditions I have worked up the herbarium so far as possible from the dried specimens only. Peristylus goodyeroides (D. Don) Lndl. Gen. et Sp. Orch. (1835), 299; etc. |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525239 |
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| Karstens, W.K.H.. |
| Prom a number of Ginkgo trees kernels were examined. The investigation of the variability of the material was greatly favoured by the large number of stones, in total about 4700. In addition, one tree, grown in the Botanic Garden at Leyden, supplied the material for an investigation of the variability of the female “flowers”, in total about 1700. 1. The number of female “flowers” or rather macrosporangiophores on the brachyblasts (short shoots) proved to be most variable, showing a correlation with the age of the shoot (Table I, fig. 1). 2. A subdivision of the macrosporangiophores into a series of types proved to be possible (Table II, fig. 2-3). 3. A certain relation between the shape of the macrosporangiophore and the shape of the leafy organs from... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/524732 |
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| Schreuder, A.. |
| De opzet van dit artikel is het in kaart brengen van de plaatsen, waar het negental in Nederland niet algemeene muizen (Sorex minutus, Neomys fodiens, Crocidura leucodon en russula, Clethrionomys glareolus, Microtus oeconomus en agrestis, Pitymys subterraneus en Micromys minutus), hetzij in uileballen, hetzij in het vleesch, geconstateerd kon worden. De basis van het onderzoek vormen de resultaten, verkregen uit een sinds 1930 uitgevoerd onderzoek van uileproppen mij uit alle provincies toegezonden. Ook de resultaten van enkele andere, mij als betrouwbaar bekende, onderzoekers zijn gaarne medeopgenomen. Evenzoo de gegevens mij welwillend ter beschikking gesteld, die zich in de Musea te Leiden, te Maastricht en te Amsterdam bevinden. Allen, die mij hierbij... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.84. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318296 |
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| Holthuis, L.B.. |
| On the initiative of Dr. A. D. J. Meeuse investigations were made on the fauna of the greenhouses of several Botanic Gardens in the Netherlands; material was also collected in greenhouses of other institutions and in those kept for commercial purposes. The isopods contained in the collection afforded many interesting species, so for instance six of the species are new for the Dutch fauna, viz., Trichoniscus pygmaeus Sars, Hyloniscus riparius (Koch), Cordioniscus stebbingi (Patience), Chaetophiloscia balssi Verhoeff, Trichorhina monocellata Meinertz and Nagara cristata (Dollfus). Before the systematic review of the species a list of the localities from which material was obtained is given here with enumeration of the collected species. I. Greenhouses of the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/317941 |
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| Buitendijk, A.M.. |
| Van Dr. A. C. Oudemans ontving het Rijksmuseum van Natuurlijke Historic in 1942 ten geschenke de door hem in den loop der jaren bijeen gebrachte belangrijke verzameling van Acari. Deze verzameling omvat 5981 praeparaten van mijten, behoorende tot 1316 soorten. Verder legateerde Dr. Oudemans aan het museum zijn verzameling van afbeeldingen van dieren van deze groep, welke na zijn overlijden op 14 Januari 1943 werden ontvangen. Bij deze afbeeldingen, voor het meerendeel bestaande uit door Dr. Oudemans zelf gemaakte teekeningen (in het geheel 2045 bladen), heeft een groot aantal betrekking op soorten (of onderdeelen daarvan), van welke praeparaten in de verzameling aanwezig zijn, terwijl andere bladen met afbeeldingen betrekking hebben op vormen die niet als... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318256 |
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| Regteren Altena, C.O. van. |
| I. Introduction. In the Geological Institution of the University of Amsterdam there is a collection of recent shells as material for comparison with fossil Mollusca. From this collection the writer identified a lot of shells collected by Professor Dr. H. Gerth during his stay in Java from 1928 to 1929. These materials will be discussed here. The writer is indebted to Prof. Dr. H. A. Brouwer (Amsterdam) for his permission to publish the results of these investigations on materials belonging to the Geological Institution, to Prof. Dr. H. Gerth for placing at his disposal the present collection and his field notes, and further to Dr. Ch. Bayer (Leiden), Mrs. W. S. S. van der Feen-van Benthem Jutting (Amsterdam), Mr. L. de Priester (Apeldoorn), Dr. F. A.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.73. |
| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/318546 |
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| Registros recuperados: 91 | |
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