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| Registros recuperados: 381 | |
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| Ooststroom, S.J. van; Reichgelt, Th.J.. |
| Of Cerastium holosteoides Fr. three subspecies occur in the Netherlands. Subsp. triviale (Murb.) Möschl is common throughout the country, subsp. holosteoides and subsp. pseudoholosteoides Möschl are very rare and only found in a few localities in the tidal area of our larger rivers (island of Dordrecht; Biesbosch). The three subspecies may be distinguished as follows: 1. Leaves hairy above. Indumentum of the plant consisting of long, very acute hairs, whether or not mixed with glandular ones.............. subsp. triviale 1’. Leaves glabrous above, at most ciliate at the margin. 2. Indumentum of the plant consisting of very acute hairs, which are, however, shorter than in subsp. triviale; glandular hairs present or lacking (fig. 1, b-c) subsp. holosteoides... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/526495 |
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| Leeuwen, C.G. van; Westhoff, V.. |
| Op 8 okt 1960 vond de heer J.C. Tanis, custos van het Biologisch Station “Schellingerland” op Terschelling, in de nabijheid van dit Station een bloeiend exemplaar van Erica cinerea L. Na opzending van een bloeiende tak via ondergetekenden naar het Rijksherbarium werd deze determinatie bevestigd. Deze opmerkelijke waarneming geeft aanleiding tot commentaar, temeer, daar men op het eerste gezicht geneigd is, hier enig verhand te zien met de ontdekking van twee andere, mediterraan-atlantische, Erica-soorten in dezelfde omgeving, te weten E. scoparia L. door Th.J. Reichgelt in 1952 (zie van Ooststroora en Reichgelt 1956) en E. ciliaris L. door P. Runge in 1955 (zie Runge 1956, van Ooststroom en Reichgelt 1956). |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/534198 |
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| Gadella, T.W.J.. |
| Few cytological data are available of the Loganiaceae. Its subfamily Buddleioideae, often considered a separate family, is a well-defined group, as far as could be concluded from the chromosome number. On the other hand, nothing can be said with certainty of the other subfamily, the Loganioideae, because the available data are still insufficient. Hitherto, the chromosome numbers of the following seven species of Loganioideae, studied by MOHRBUTTER (1936) and Moore (1947), are known: Gelsemium sempervirens 2n = 16 (MOORE, 1947) Strychnos laurina 2n = 24 (MOHRBUTTER, 1936) Strychnos nux-vomica 2n = 24 (MOHRBUTTER, 1936) Strychnos sansibariensis 2n = 24 (MOHRBUTTER, 1936) Spigelia marilandica 2n = 48 (MOORE, 1947) Fagraea fragrans 2n = 12 (MOHRBUTTER, 1936)... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/535228 |
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| Royen, P. van. |
| Herba valde caespitosa. Folia linearia, interdum falcata, 0.8—4 X 0.2—0.5 cm, vel basi interdum subabrupte usque ad 1 cm dilatata, glabra, axillis pilis longis albis munita. Pedunculi 0.5—4 cm longi, 5—8-costulati. Bracteae involucrantes oblongae vel ovato-oblongae, pallide luteae, glabrae; bracteae florales conchatae, late ovatae, panduratae vel oblongo-obovatae, nigrescentes sed interdum basi pallide lutei, extus parte apicali albo-pilosae. Receptaculum longe pilosum. Flos ♂: sepala 3, interdum 2, connata, basi excepta nigrescentia, parte apicale albo-pilosa; petala 3, connata, glandulosa, extus apice et intus omnino albo- vel luteo-pilosa. Flos ♀: sepala 3, libera, naviculata, nigra, extus parte apicali albo- vel luteo-pilosa; petala 3, inaequalia,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/524783 |
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| Visser, A. de. |
| Dryopteris linnaeana C. Chr., die bij ons in hoofdzaak gevonden wordt in het Gelderse-, Drentse-, Subcentreurope- en Krijtdistrict, en ook wel op enige plaatsen elders werd aangetroffen, b.v. op oude muren e.d. te Amsterdam en te Gouda, werd in 1956 door E. E. van der Voo (Woerden) gevonden op een knotwilg aan de Kooiplas ten Z.O. van Rhoon op het eiland IJsselmonde en in 1961 door W. J. Wolff (Leiden) eveneens op een knotwilg in een eendenkooi op de Visplaat in de Brabantse Biesbosch. Het is zeker van belang om in het Haf- en Fluviatiele district op soortgelijke vindplaatsen eens naar deze soort uit te kijken. v. O. en R. |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/527718 |
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| Laar, W. van. |
| It is generally understood that characters of the genitalia are indispensable for the natural classification of most groups of the Lepidoptera. The genital structures are of great value, especially in cases where difficulties may arise in distinguishing groups on external characters, like venation, colour, etc. Following this tendency, in the present work the female genitalia of the species of Depressaria Hw. s.l. occurring in the Netherlands are figured and described. Moreover, an attempt to improve the possibilities for identification may be useful, as some species have economic significance. The male genitalia of the European species of this group have been described and figured by Hannemann (1953, 1954, 1958), who divided it into several groups of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/318724 |
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| Boedijn, K.B.. |
| A systematic account of the Myrangiales known to occur in Indonesia is given. The order is represented by 9 genera containing together 15 species distributed over 5 families. The genus Micularia Boedijn and two species (Micularia merremiae Boedijn, Elsinoë fici Boedijn) are described as new. Additional collections are cited for most of the other species. Agyrona calami (Rac.) Boedijn is a new combination. |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/532242 |
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| Henkes, H.. |
| En Espagne septentrionale, dans la province de León, à une dizaine de kilomètres au NO de la ville de Cistierna, s’étend un bassin houiller entre le Rio Porma et le Rio Esla, perpendiculaire à ces fleuves et avec la ville de Sabero au centre. La situation précise peut être retrouvée sur les feuilles 130 et 131 du service topographique d’Espagne. Ce bassin houiller de Sabero, dont la longueur est de 13 km et la largeur n’excède pas 2 km, suit une direction franchement E\u2500O au pied du versant méridional de la chaîne des montagnes Cantabriques. Les assises, qui ont un aspect si régulier au bord septentrional du bassin, se comportent d’une manière plus compliquée au bord méridional. Il est rare qu’un horizon spécifique traverse la largeur du bassin sans... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/505997 |
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| Hooijer, D.A.. |
| A male skull of Tapirus terrestris (L.) originating from Dutch Guiana (Leiden Museum, reg. no. 11632), received from the Rotterdam Zoological Garden through the kind intermediary of Mr. F. J. APPELMAN on July 15, 1952, is remarkable for the abnormal development of its right P1. The full permanent dentition is in place except for the posterior premolars and last molars, which are in alveolo. The teeth are but little worn and, apart from the right P1, they do not show anv unusual characters. The left P1 has the shape normally found in the Brazilian tapir; the crown is triangular with rounded angles, and bears a continuous outer crest (ectoloph) extending from the front angle (parastyle) to the posterior outer cusp (metacone). The position of the central... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/504614 |
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| Vecht, J. van der. |
| INTRODUCTION In the early years of systematic entomology Johann Christian Fabricius (1745-1808) described an enormous number of insects, including several hundreds of Hymenoptera, from various parts of the world. His descriptions are generally short and incomplete, the classification of the species is often unsatisfactory, and the author himself frequently misidentified species which he had described in previous works. His work has thus raised a considerable number of problems, which in most cases can be solved only by a study of the typical specimens. Workers in some insect groups have realised this at an early date, and by a detailed study of the Fabrician collections they have made important contributions to our knowledge of many doubtful species. A... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/317715 |
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| Steenis, C.G.G.J. van. |
| Greenhouses appear frequently too low for large palms which outgrow them. This seals their fate and they are removed and destroyed. This seems a pity, as they are sometimes rarities which have served for scientific purpose or description. The idea has come to me that it might be possible to rejuvenate them by marcotting, because so many palms are capable to throw roots from the lower parts of the stem, some being even distinctly stilted, as pandans. It has not come to my knowledge whether it has ever been tried if this method could be successful. |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/532816 |
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| Ploeg, D.T.E. v.d.. |
| In Juni 1960 vond ik in gezelschap van mijn collega’s M. Baaijens en K. Boelens op de noordelijke Makkumer Waard een Carex-soort, die ik niet herkende. Bij determinatie bleek het te zijn de in Nederland niet eerder aangetroffen Carex divisa Huds., welke determinatie bevestigd werd door de heer Th.J. Reichgelt. Alvorens nader op deze nieuwe vondst in te gaan, eerst iets over het terrein waar de plant werd aangetroffen. Langs de zuidelijke en westelijke kust van Friesland zijn na het tot stand komen van de Afsluitdijk en de daarmee gepaard gaande verlaging van de waterstand een aantal zandige platen nagenoeg permanent droog komen te liggen. Alleen hij storm raken de platen door opwaaiing soms overstroomd. |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/534127 |
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| NN. |
| Flora of Java. In May 1961 the English translation of this great work was completed, except for the Bambusaceae which Mr Ch. Monod de Froideville is engaged in writing up. Dr. R.C. Bakhuizen van den Brink Jr has finished the nomenclatural polishing. It is hoped that this voluminous work can be published in 1962. The main body was written by Dr. C.A. Backer, who for many families had the assistance of specialists. Forest Botany in North Borneo. Dr. W. Meijer of Sandakan has prepared a mimeographed report under this title, April 1961, 33 pp. He describes summarily the present state of our knowledge, gives particulars about botanical work in North Borneo up till the present, a survey of dipterocarp genera, a tentative list of climbers (a much neglected... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/532947 |
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| Wiebes, J.T.. |
| Recently, I received a sample of fig wasps from Uganda (East Africa), collected by Mrs. Ir. W. A. Rijks-Jongbloed in November, 1960. The fig, from which the insects were taken, was recognized by Dr. Gordon P. DeWolf as belonging to Ficus brachypoda Hutchinson1). The sample consisted of two species of Agaonidae, viz., Agaon paradoxum (Dalman) Grandi, and Seres armipes Waterston; moreover several species of Idarninae were represented. The Agaonid species were known from West Africa only2), where they seem to be rather constant in their characters. It is interesting to establish the fact that the species also occur in East Africa, where, however, they differ significantly from the West African forms. The East African forms are described here as separate... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/318599 |
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| Bemmel, A.C.V. van. |
| The discovery of the Congo Peacock (Afropavo congensis CHAPIN) is one of the most recent in ornithology. Certainly it is the most famous one. The history of the discovery has been described by CHAPIN in detail (5, 6). The first living specimens exported from Kongo reached the United States June 1949. CHARLES CORDIER told the story of this remarkable transport and of the painstaking work which he undertook to secure these first specimens (7, 8). |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/504049 |
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| Koopmans, B.N.. |
| A continuous sequence of about 1000 m of Devonian sediments has been found in the Valsurvio dome, ranging from probable Siegenian to Famennian in age. This sequence of a neritic-littoral facies shows similar characteristics to the Devonian found further west in the province of León. North of the Valsurvio dome, a narrow E—W ridge (zone of San Martin—Camporredondo) has been uplifted by a total of 900—1000 m during two periods in the Middle and Upper Devonian. The upheaval of this zone resulted in rapid facies changes, the development of two large hiatuses in the Devonian of this zone and in the totally different facies development north (Rio Arruz area) and south (Valsurvio dome). During Carboniferous time the San Martin-Camporredondo zone played an... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/505669 |
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| Clason, E.W.. |
| Up to 1954 Ceratophyllum submersum L. was represented in the Netherlands herbaria mainly from a few localities in the neighbourhood of the coast, and in the living state it was practically unknown to Dutch botanists. As appears from an investigation since 1954, this species still occurs in several localities in the coastal area, and is fairly common in some parts of the province of Zeeland. It grows in oligohaline to mesohaline waters but not in salt ones. The only inland occurrence of the species is in South-Limburg (see „Naschrift”). On the map the localities known before 1954 are marked with a circle, those after 1954 with a dot (fig. 1). |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/526727 |
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| Jansen, M.T.. |
| Mentha X dumetorum Schult. is de zeldzaam voorkomende bastaard van M. aquatica L. en M. longifolia (L.) Huds. De Voerenbeek of Voer zoeke men niet bij Voerendaal; het is nl. de beek die even bezuiden Eysden, nog juist op Nederlands gebied in de Maas uitmondt. Op Belgisch gebied ontspringt hij bij Sint Pietersvoeren (Fouron St. Pierre) en stroomt dan in hoofdzakelijk west-zuidwestelijke richting via Sint Maartensvoeren (Fouron St. Martin) en ’s-Gravenvoeren (Fouron le Comte) naar Mesch en Eysden op Nederlands gebied. GOFFARTS Flore de Belgique noemt Fouron St. Martin als vindplaats van M. X dumetorum. Inderdaad groeit de plant daar veel; stroomopwaarts vindt men haar tot aan de oorsprong van de beek bij Fouron St. Pierre. Gaat men stroomafwaarts dan ziet... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/527131 |
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| Registros recuperados: 381 | |
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