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| Registros recuperados: 308 | |
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| Loosjes, F.E.. |
| Some time ago Prof. Dr. W. Weyrauch at Lima, Peru, sent to me specimens of a species of the subfamily Neniinae that proved to be new to science. Already about 70 species of the subfamily have become known from Peru, for an important part discovered by Prof. Weyrauch himself. Andinia (Ehrmanniella) flammulata spec. nov. (Figs. 1, 2) Diagnosis. A small, rather fusiform species of the subgenus Ehrmanniella Zilch. The decollated shell is provided with rather irregular fine white striae. Especially below the suture these striae are thickened, strikingly white, and arranged in groups of about 5 to 15 on low nodules. These nodules alternate with brown, quite smooth, malleated patches. At some distance it looks like small white and brown areas running obliquely... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.73. |
| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/318600 |
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| Lam, H.J.. |
| The present paper comprises supplementary notes on Ganua, based on material which has come to our knowledge after the last contribution on the genus had been published. In the following text the previous papers have been referred to as follows: Van den Assem 1953 = Rev. Sap. IV. Ganua in Blumea 7 (2), 1953, 364—400. Van den Assem & Kostermans 1954 = Rev. Sap. IVa. Ganua (Add. Notes) in Blumea 7 (3), 1954, 481—483. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/525349 |
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| Sitter, L.U. de; Zwart, H.J.. |
| Mapping of the Paleozoic of the Central Pyrenees by students in geology of Leiden University under the directorship of Prof. Dr L.U. de Sitter started in 1948 with the Arize massif. Since then the survey has shifted first eastwards, 1949 St. Barthélemy massif; then westwards, 1950 Salat valley; 1951 Riberot valley (sheet 2); 1952, Garonne valley (sheet 1), and then southwards, 1953 and 1954 Valle de Arán, then south again to the Pallaresa and the Sègre (1955—1957). The survey has been restricted almost exclusively to the Paleozoic because the Mesozoic had been mapped by Casteras (1933) in the north and by Misch (1934), in the south, therefore only the Paleozoic rocks in their nonmetamorphic and metamorphic state have been differentiated on the map, whereas... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/505682 |
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| Clason, E.W.. |
| De Nederlandse rijksgrens is geen floristische scheidingslijn en daarom kan men zich afvragen hoever de plantengeographische districten van Nederland, onderscheiden door Van Soest (1929, 1952), zich over die grens uitstrekken. Vanuit dit gezichtspunt heb ik mij bezig gehouden met de begrenzing van het Drentse District (D. D. ). Calluna-Erica-heiden (op zand- en veengronden) noemt Van Soest (1952) voor het D.D., evenals voor de Gelderse en Kempense Districten, het meest kenmerkend. In het D.D. spelen, naast atlantische, de noordelijke soorten een belangrijke rol, die in het Gelderse D. minder wordt en in het Kempense D. nagenoeg onbetekenend is. Ook over onze rijksgrens in Nieder-Sachsen zijn deze heiden met dezelfde soorten als in ons D.D. kenmerkend,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534116 |
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| NN. |
| Mr A.G.L. Adelbert, curator of the Botanic Garden ’Setia Mulia’ W. Sumatra, went on leave end 1956; he will not return. Mr T. van Kregten, curator of the same garden came on leave March 1957. Mr A.G. Alphonso, Horticultural Assistant, Singapore Botanic Gardens, returned to Singapore in December, 1956, after a two years’ study course at the Royal Botanic Gardens, Kew, where he obtained the Kew Diploma. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/533202 |
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| Donselaar, J. v.; Leeuwen, Chr.G. v.. |
| In 1951 was er voor het eerst sprake van een Caricetum vulpinae in een publicatie van Tüxen en Preising (Erfahrungsgrundlagen für die pflanzensoziologische Kartierung des wostdeutschen Grünlandes, Angew. Pflanzensoz. 4, p.5-28). Van de gemeenschap werd slechts medegedeeld: 1. hij behoort tot het Magnocaricion-verbond, 2. de kensoorten zijn Carex vulpina en Oenanthe fistulosa, 3. differentiërende soorten t.o.v. de andere Magnocaricion-associaties zijn Agrostis canina var. genuina, Alopecurus geniculatus en Ranunculus repens. In 1954 verscheen van Tüxen: Pflanzengesellschaften und Grundwasser-Ganglinien (Angew. Pflanzensoz. 8, p. 64-98). Hierin komt een opname van de gemeenschap voor. Deze vertoont een soortencombinatie, die enerzijds inderdaad aan het... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534229 |
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| Boeseman, M.. |
| A collection of 561 specimens of East Asian freshwater fishes has recently been presented to the Rijksmuseum van Natuurlijke Historie at Leiden by Mr. A. Werner, Munich, a well known collector and naturalist. A close examination of the present material provided several interesting data, which are given below, while one sample proved to belong to a species and genus new to science. The localities given by Mr. Werner are : Colombo, Calcutta, Bangkok, and Singapore, but some of the Singapore material seems to have been imported, presumably from Sumatra or Borneo. Kryptopterus bicirrhis (C. V.) 18 ex., Singapore, probably 1956, 38-73 (46-87) mm. Occasionally the name Cryptopterus is still used for the present species. The original name was given by Bleeker... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.81. |
| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/319140 |
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| Besseling, A.J.. |
| Von seilen des Zoologischen Museums in Amsterdam wurde im Jahre 1954 eine Exkursion gemacht nach Jugoslavien. Zum Ergebnis gehörte auch eine kleine Sammlung Wassermilben. Diese Milben waren mir freundlichst von Herrn J. H. STOCK, Zoologisches Museum, Amsterdam, zur Bearbeitung überreicht worden. Folgende Arten habe ich in der Sammlung feststellen können: Stat. 14. Forelia curvipalpis, ♀ . . . . . . 2 Stück Mideopsis crassipes, ♀ . . . . . . 1 Stück Arrenurus albator. ♀ . . . . . . 1 Stück Stat. 15. Forelia curvipalpis, Nymphe . . . . 1 Stück Mideopsis crassipes. Stat. 16. ♂, ♀ . . . . . . 2 Stück Forelia curvipalpis, Nymphe . . . . 1 Stück Lebertia inaequalis, Stat. 74. Nymphe . . . . 1 Stück Limnesia undulata, ♂, ♀, Ei . . . . 3 Stück Neumania vernalis... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/504852 |
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| Allaart, J.H.. |
| In the introduction the criteria are mentioned which enable us to distinguish the products of the synkinematic and post-kinematic phases of the Hercynian metamorphism. A short characteristic has been given of the Silurian and Cambro-Ordovician rocks. The mica-schists, discussed in Chapter I, are exposed in the southeastern, central and northern parts of the mapped area. The grade of metamorphism increases from north to south in this rock-series. A biotite-, an andalusiteand a sillimanite zone can be distinguished. The biotite- and andalusite zones originated during the synkinematic phase. However, the sillimanite of the mica-schists is thought to be post-kinematic. There are indications that the rocks of the sillimanite zone have undergone high-grade... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/505898 |
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| Koster, J.Th.. |
| Dr. S. J. van Ooststroom vond op 31 Mei 1937 Pleurocladia lacustris A. Braun, een bruinwier, behorende tot de Ectocarpaceae, en vóór noch na die tijd in Nederland gevonden. Het wier groeide overvloedig op de wortels van Bryopteris thelypteris langs de kant van de Nieuwkoopsche plassen. Dr. F. Drouet (Nat. Hist. Mus., Chicago) determineerde de soort. Het materiaal wordt bewaard in het Rijksher – barium. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534140 |
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| Eisner, C.. |
| Parnassius apollo L. subsp. albus Reb. & Rog. Giebau, f. zirpsi Bryk 1 ♀ Holotype. Zugänge: Domeschau 2 ♂ 1 ♀ ; Grosswasser 3 ♂ 1 ♀ ex c. Hirschke; Würbental 1 ♂ 1 ♀ ex c. Wagner ; Olmütz 2 ♂ 2 ♀ ; Altvater-Gebirge 3 ♂ 1 ♀ ex c. Kammel. Den Fundort Würbental bezeichnet Rebel — auch ihm lagen Exemplare ex c. Wagner vor — als unwahrscheinlich; bei meinen Stücken handelt es sich um gezogenes Material, das sich ebenfalls bei anderen aufgeführten Fundorten vorfindet. Unglaublich muten die Verfälschungen verschiedener Sammler an, die eine Beurteilung sehr schwierig machen, trotzdem subsp. albus Reb. & Rog. eine sehr distincte Unterart ist. subsp. bohemicus Reb. Böhmen 1 ♂ ex c. Oberthür ex c. Kolar. subsp. isaricus Rebel Iser-Tal 1 ♂ ex c. Oberthür ex c.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/318276 |
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| Boschma, H.. |
| The last description of the coral Stylaster flabelliformis (Lamarck) appeared a century ago (Milne Edwards & Haime, 1857, p. 129). The cited authors listed in the genus Stylaster six at the time well-defined species, two of which, S. flabelliformis and S. gracilis, were characterized by having the "calices" exclusively on the lateral surfaces of the branches. From a modern point of view in the cited publication the specific characters were little clearly defined, consequently Broch (1936, p. 11) had to observe that the identity of S. flabelliformis is uncertain. Fortunately the species is well represented in the collections of the Paris Museum; during a visit in September, 1954, I made notes on the large colonies, while some small fragments were taken... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.72. |
| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/318964 |
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| NN. |
| Recently a cover and an Index have been distributed belonging to numbers 9-12, so that these can be bound into a second volume. The Foundation suffered a great loss by the passing away of the trustee, Dr E.D. Merrill, Febr. 25, 1956, Dr Merrill took a great interest in promoting the work and we will dearly miss his advice, his help, and the privilege of having access to the colossal store of his knowledge of the Malaysian flora. As a trustee of the Foundation he has been replaced by Mr E.J.H. Corner, F.R.S., Cambridge. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/532797 |
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| Docters van Leeuwen, W.M.. |
| In 1935 zocht ik naar gallen in de omgeving van Denekamp. Ik zag een boer, die een houtwalletje, dicht begroeid met Zevenster aan het omspitten was. Twee exemplaren nam ik met een goede kluit mede naar Leersum. Zij werden in onze tuin uitgeplant. Die tuin was oorspronkelijk ongeveer 60 Jaar oud dennebos, tegen de tamelijk steile helling van de Utrechtse heuvelrug. Door het hoogste gedeelte loopt een berkelaantje en de begroeiing van het terrein bestaat behalve uit dennen uit eikjes, lijsterbes, sporkenhout en Prunus serotina. De bodem is dicht bedekt met Bochtige Smele. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534169 |
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| Bree, P.J.H. van. |
| An investigation was made in order to ascertain the mode of variation of length and breadth of eggs of the black-headed gull (Larus r. ridibundus) from a colony on the northeastern side of the island of Texel in the Netherlands. The colony can be divided into two ecologically different areas. A difference could be shown in the measurements of eggs collected in these areas. Two possible explanations of this coincidence are given. Methods of egg collecting and measuring are discussed, and data and tables of the findings during 1950, 1951 and 1952 are furnished. On account of the flood and disaster of 1953 the investigation was broken off before its completion. The fact that mean measurements and weights must be used with due caution is emphasized. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/505079 |
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| NN. |
| Trifolium ornithopodioides Deze soort, waarvan de in het Rijksherbarium en in het herb, van de Kon. Ned. Botanische Ver, aanwezige exemplaren dateren van 1878 (tussen Alkmaar en Bergen), 1879 en 1880 (Oostkapelle, Walch.) en 1903 (Vlieland) werd op 19 mei 1957 door A. de Visser teruggevonden in het vroon ten N. van de Vroonweg in de gem. Vrouwenpolder, Walch. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534261 |
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| Rompaey, E. van. |
| Naar aanleiding van het artikel over Quercus petraea in het Corr. bl. no. 4 zend ik u hierbij een kopie van de Belgische verspreidingskaart, omdat daar m.i. wel een en ander uit af te leiden is, dat ook Nederland aanbelangt: 1. Bij bet massale verspreidingsgebied ten Z. van de lijn Samber-Maas (de leemten daarin duiden eer op onvoldoende prospectie dan wel op bet ontbreken van de soort) sluit bet Nederlandse gebied in Z.-Limburg volkomen natuurlijk aan. 2. N.W. van Samber en Maas volgt een gebied met meer open verspreiding (de witte vlek in E6 – E7 – F5 – F6 – F7 beantwoordt, aan het haast boomloze Haspengouw), waarvan men logisch veronderstellen mag, dat het zich voortzet in O.-Noord-Brabant en Limburg ten W. van de Maas. Vgl. de aanduiding op ons kaartje... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534255 |
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| Zwart, H.J.. |
| The relation between orogenic movements and metamorphism is discussed. Schistosity and especially lineations are characteristic for metamorphites of the synkinematic phase. Lineations show a regular pattern. Late-kinematic metamorphism accompanied by different kinds of movement result in irregular rock flowage and rheomorphism. The structures of synkinematic mica-schists, gneisses, amphibolites and marbles are discussed. In the three satellite massifs a series of gneisses and granitic rocks exists which are the products of silica and sodium metasomatism of originally pelitic rocks. The time and duration of the metamorphism determines the final state of the rocks. Synkinematic metamorphism alone gave rise to the garnet-augen-gneisses which, being rather... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/505887 |
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| Registros recuperados: 308 | |
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