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Registros recuperados: 14
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Een nieuwe vindplaats van Carex reichenbachii Ed. Bonn Naturalis
Voo, E.E. van der.
Op 16 mei vond ik in de gemeente Wilnis op de westhelling van de Westveense kade van de Kromme Mijdrecht een vrij dichte vegetatie van Carex reichenbachii. Volgens de auteurs van de Flora Neerlandica (I, 3, 1954) „is de plant zeker vaak over het hoofd gezien.” Dit is wel aannemelijk, omdat de habitus doet denken aan Carex ligerica of aan een nog niet volgroeide C. brizoides op overeenkomstige standplaatsen. Maar in het onderhavige geval, waarbij een soort van de sectie Arenariae (behalve dan C. disticha) op een kade in het Hafdistrict werd aangetroffen, voelde ik mij door deze merkwaardige groeiplaats wel gedwongen, de plant wat nauwkeuriger te onderzoeken. Onmiddellijk vielen daarbij de gekromde aartjes op, De determinatie gaf, hoewel de urntjes nog niet...
Tipo: Article / Letter to the editor
Ano: 1959 URL: http://www.repository.naturalis.nl/record/534172
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Lycopodium annotinum en Cetraria pinastri bij het Meeuwenveen (Zuidwolde, Dr.) Naturalis
Barkman, J.J.; Voo, E.E. van der.
This paper discusses the first find of Lycopodium annotinum in a natural habitat in the Netherlands, viz. a moist Calluna-Erica-Molinia-heath with Salix aurita on a gentle N-facing slope. Nearby the extremely rare Cetraria pinastri was found on twigs of Calluna. Hitherto both species were only known from woodland sites.
Tipo: Article / Letter to the editor
Ano: 1964 URL: http://www.repository.naturalis.nl/record/526825
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Ranunculus auricomus L. en het vloedruggen-gebied van de Hollandse IJssel Naturalis
Voo, E.E. van der.
The occurrence of Ranunculus auricomus L. s.l. along and near the “Hollandse IJssel” appears to be correlated with the former sphere of influence of the tidal river.
Tipo: Article / Letter to the editor
Ano: 1968 URL: http://www.repository.naturalis.nl/record/528127
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Het Galgenwiel in de gemeente Loon op Zand Naturalis
Voo, E.E. van der.
The author describes the vegetation, origin and history of the ‘Galgenwiel’, a lake near Loon op Zand (N.-Brabant).
Tipo: Article / Letter to the editor
Ano: 1962 URL: http://www.repository.naturalis.nl/record/527449
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Een tweede vindplaats van Sphagnum riparium Ångström in Nederland Naturalis
Schroevers, P.J.; Voo, E.E. van der.
The first record of Sphagnum riparium Angstrom in the Netherlands was made by Meyer in 1946. The present authors mention a new locality of it in the “Peel”, a drained region of raised bog in the southern part of the Netherlands. A description of the material is given and the environment has been analysed. The latter research leads to the following conclusions: 1. S. riparium is found in man-made bog pools, which, originally oligotrophic, by influence of the surroundings have changed into a slightly meso-metatrophic habitat. 2. The species is only found in pools, arranged in more or less extended systems. A light movement of the water may be required. 3. A certain amount of shadow may favour the growth and occurrence of the species.
Tipo: Article / Letter to the editor
Ano: 1965 URL: http://www.repository.naturalis.nl/record/526695
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De gevolgen van de wateronttrekking voor de flora van de „Groote Meer” onder Ossendrecht Naturalis
Voo, E.E. van der.
Up to a few years ago the “Groote Meer” in Ossendrecht (south of Bergen op Zoom, prov. N.-Brabant) was known as the largest and soundest Littorellion-pool in the Netherlands. In consequence of withdrawal of water for a neighbouring water-company the pool was drained during extreme long periods in summer. Moreover a supply of reclamation water intensified the disturbance of the vegetation. Lobelia dortmanna, Isoëtes tenella, Luronium natans, and Sparganium angustifolium vanished. Sphagna diminished. In the Littorella-vegetation on the banks, in the zone of mud deposit, Agropyro-Rumicion crispi and Bidention-communities developed. In the lower zone with less mud deposit, communities of the Nanocyperion flavescentis settled. Meanwhile the waterlevel was...
Tipo: Article / Letter to the editor
Ano: 1967 URL: http://www.repository.naturalis.nl/record/526924
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Een groeiplaats van Ranunculus aquatilis subsp. peltatus (Schrank) Syme in het centrum van het Hafdistrict Naturalis
Voo, E.E. van der.
HEUKELS-VAN OOSTSTROOM (1962) mentions that Ranunculus aquatilis subsp. peltatus occurs in the pleistocene part of the Netherlands. In 1966 the species was found some tens of kilometers west of the western border of the area, in the centre of the polderland near Bodegraven in a small natural stream of young-holocene origin (a geographical phenomenon). The habitat of the species is a small winding ditch containing shallow water with only periodical weak movement. The vegetation is strongly influenced by anthropozoogene factors. The species is not accompanied by the characteristic species of Callitricho-Batrachion except Hottonia palustris. In 1970 the species occurred in a few number of individuals as a probable consequence of an excessive development of...
Tipo: Article / Letter to the editor
Ano: 1971 URL: http://www.repository.naturalis.nl/record/527562
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Een aanvullende mededeling betreffende Geranium phaeum L Naturalis
Voo, E.E. van der.
The author mentions the occurrence of Geranium phaeum L. along the carriage drive of an old farmhouse near Linschoten (prov. Utrecht).
Tipo: Article / Letter to the editor
Ano: 1966 URL: http://www.repository.naturalis.nl/record/527348
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Carex x boenninghausiana Weihe Naturalis
Voo, E.E. van der.
Op 11 juni 1960 deelde Joop Kortselius te Woerden mij mede de „rode zegge” gevonden te hebben. De determinatie werd bevestigd door de heer Th.J. Reichgelt. Volgens de Flora Neerlandica (1, 3, 1954, p. 127) komt Carex x boenninghausiana, een bastaard tussen C. paniculata en C. remota, met de stamouders voor in drassige loofbossen op humeuze, voedselrijke klei-, leem- en zandgrond, bij voorkeur in brongebieden (drassig eiken-haagbeukenbos, essen- en elzenbroekbos) en ook in grienden. Als vindplaatsen worden genoemd: aan het Hoendiep tussen Oostwolde en Hoogkerk, Nutter bij Ootmarsum, Beekhuizen, Berg en Dal bij Nijmegen, Dordrecht, Sleeuwijk (N.Br.) en Piasmolen. In het onderhavige geval werd de vondst gedaan in de gemeente Zegveld (ten noorden van Woerden),...
Tipo: Article / Letter to the editor
Ano: 1960 URL: http://www.repository.naturalis.nl/record/534144
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Carex X evoluta Hartm Naturalis
Voo, E.E. van der.
The hybrid of Carex lasiocarpa L. and C. riparia L. O (C. x evoluta Hartm.), in the Netherlands till now only found near Wychen (prov. Gelderland) in 1955, has also been found in 1961 near Maartensdijk (prov. Utrecht). Data are given concerning the ecology of the hybrid and the plant communities in which it occurs.
Tipo: Article / Letter to the editor
Ano: 1962 URL: http://www.repository.naturalis.nl/record/527255
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Chenopodium Bonus-henricus L Naturalis
Voo, E.E. van der.
Op de noordoever van de Lek in de gemeente Tuil en ’t Waal, ter hoogte van de aanlegplaats van de Culemborgse gierpont, waar de oplopende Veerweg hij de uitspanning „Landlust” haar hoogste punt bereikt, werden op 15.7.1960 een twintigtal exemplaren van Chenopodium bonus-henricus aangetroffen. Leze voor ons land buiten Zuid-Limburg zeldzame soort (Heukels-Van Ooststroom, 1956) stond hier over een lengte van 50 meter verspreid in de bermvegetatie, en wel het meest aan de oostzijde van de weg. Le floristische samenstelling van de bermvegetatie was als volgt: Lolium perenne, Bromus mollis, Poa annua, Agrostis tennis, Polygonum aviculare, Matricaria raatricarioides, Achillea millefolium en Capsella bursa-pastonis. De twee eerstgenoemde soorten zijn in...
Tipo: Article / Letter to the editor
Ano: 1960 URL: http://www.repository.naturalis.nl/record/534246
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On the ecology of plant species and plant communities in former river beds Naturalis
Donselaar, J. van; Kop, L.G.; Voo, E.E. van der; Westhoff, V..
In the years 1954-1957 The Foundation for Biocenological Research (Stichting tot Onderzoek van Levensgemeenschappen, S.O.L.) carried out an extensive study on the vegetation of about 125 former river beds in the Netherlands. They were situated along the great rivers and their branches, viz. Meuse, Oude Maas (“Old Meuse”), Heusdense Maas (“Heusden Meuse”), Rhine, Lek, Merwede, Waal and IJsel. The work was made possible by a grant of the Netherlands Organisation for Pure Research (Nederlandse Organisatie voor Zuiver Wetenschappelijk Onderzoek, Z.W.O.). Dr. M. F. Mözer Bruijns proposed and supervised the investigation, and Dr. V. Westhoff took part in the interpretation of the results. The field work was carried out by A. J. Quené-Boterenbrood (1954-55), W....
Tipo: Article / Letter to the editor
Ano: 1961 URL: http://www.repository.naturalis.nl/record/534813
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Ceterach officinarum Lamk. & DC Naturalis
Voo, E.E. van der; Leeuwen, C.G. van.
Ceterach officinarum, a very rare species in the Netherlands, was known in the western part of the country from one locality only, viz. in the joints of a brick bridge near Kamerik, prov. Utrecht (now extinct). The author describes a second recently discovered locality, near Harmelen, prov. Utrecht.
Tipo: Article / Letter to the editor
Ano: 1963 URL: http://www.repository.naturalis.nl/record/527657
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Het hooilandflorareservaat bij „de Elshof” aan het Naardermeer Naturalis
Voo, E.E. van der; Gorter-ter Pelkwijk, A.J..
A plot of grassland between a low dike and the margin of the Naardermeer, a lake near Naarden (prov. N.-Holland), was withdrawn from grazing by cattle and is now used as a hayfield without manuring. A vegetation sketch made in the year 1961 comprises 36 units of vegetation belonging to 9 higher units. The alliance Agropyro-Rumicion crispi is in agreement with the varying circumstances in the habitat. Moles and worms increase the richness in individuals of the said alliance. Soil-analyses afforded interesting ecological facets of some plant species.
Tipo: Article / Letter to the editor
Ano: 1966 URL: http://www.repository.naturalis.nl/record/527849
Registros recuperados: 14
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