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| Registros recuperados: 17 | |
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| Barkman, J.J.. |
| These fascicles, the first part of a moss flora of Fennoscandia, comprise five (acrocarpous) orders of the Eubryales. All species and a number of forms and varieties have been included. There are clear dichotomous keys to genera and species. Of each species the original literature, the most familiar synonyms, an excellent description with critical remarks on the differences between allied species and original drawings have been given. Ecology and general distribution have been indicated, with special reference to Scandinavia. In addition there is a glossary of technical terms, which is nearly identical to that in Dixon’s famous Student’s Handbook of British Mosses, though less extensive. Nevertheless it may be doubted whether this book actually fills a... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/524753 |
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| Barkman, J.J.. |
| This paper deals with the habitat of Cornus suecica in pine and spruce plantations near Wilhelmshaven (N.W. Germany), one of its southernmost localities in Europe. The table of records represents a transect from open pinewood to a dense, mixed pine-spruce-wood. All the shrubs, as well as the herbs and bryophytes of groups 1 obviously prefer the light wood stand, whereas those of groups 2 and especially 3 are most abundant and fertile in dense shade. Cornus suecica and Trientalis europaea show an opposite behaviour with regard to light, and so do the two closely allied Dryopteris species, D. austriaca and D. spinulosa. |
| Tipo: Article / Letter to the editor |
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| Ano: 1963 |
URL: http://www.repository.naturalis.nl/record/526809 |
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| Barkman, J.J.. |
| In. no. 15 van dit blad vermeldde ir. E. Stapelveld een vondst van Listera cordata in Drente, nl. in het Tonckenshos bij Westervelde (gem. Norg). Dit is na Vledder de tweede zekere vondst in ons land buiten de Waddeneilanden. Interessant is het voorkomen, op dezelfde plek, van nog enige boreaal-montane soorten, nl. de mossen Dicranum majus, D. rugosum (undulatum) en Plagiothecium undulatum. |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/534269 |
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| Barkman, J.J.. |
| Le Rosmarineto-Lithospermetum, défini par J. Braun—Blanquet (1924) en Languedoc, a été étudié ensuite par R. Molinier (1934) en Provence occidentale et par G. Braun—Blanquet (1936) dans le département de l’Hérault (Languedoc). D’après nos connaissances actuelles il comprend onze sous-associations dont six se trouvent dans la région de Montpellier (Braun-Blanquet, Roussine & Nègre, 1952). Des recherches sur la structure de la végétation n’existent que pour la sous-association schoenetosum (Zwillenberg & De Wit, 1952). Grâce à une subvention de la part du Ministère de l’Éducation, des Beaux-Arts et des Sciences (Ministerie van Onderwijs, Kunsten en Wetenschappen) du Gouvernement Néerlandais, j’avais l’opportunité de faire des recherches analogues... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/526347 |
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| Barkman, J.J.; Noordeloos, M.E.. |
| During a long-term mycological investigation of Juniperus communities in north-western Europe by the first author, a small Entoloma species was found, which did not seem to fit with one of the known species of Entoloma with a brownish pileus and bluish stipe, because of the small, almost isodiametrical spores and clamped basidia. The only species which seemed to be related was Entoloma lampropus in the sense of Kühner & Romagnesi (1953). That species however, turned out to be clearly different in a number of characters such as size and shape of spores and structure and pigmentation of the pileipellis (see Noordeloos, 1982). Therefore the collections of this apparently new species were examined by the second author in the course of a critical revision... |
| Tipo: Article / Letter to the editor |
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| Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/532351 |
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| Barkman, J.J.; Doing Kraft, H.; Leeuwen, C.G. van; Westhoff, V.. |
| De ontwikkeling van het vegetatiekundig onderzoek heeft in de laatste 10 jaar althans in ons land geen gelijke tred gehouden met de daarvoor in sommige gevallen noodzakelijke uitbouw van het terminologisch apparaat. Het mag sommige buitenstaanders misschien voorkomen, dat de terminologie van de vegetatiekunde reeds rijkelijk ingewikkeld is. Dit is echter slechts schijn. Weliswaar bestaat er een indrukwekkende reeks van termen, doch de meeste hiervan spelen in de practijk van het onderzoek geen enkele rol, en zijn slechts bedacht om er zich van te kunnen bedienen in extreme en vaak gezochte probleemstellingen. In de practijk van het onderzoek heeft men behoefte aan behoorlijk omschreven termen voor alle verschillende gevallen die zich kunnen voordoen bij... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/534250 |
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| Barkman, J.J.. |
| As a reaction to the paper by Geesink (Gorteria 12, 1985: 153-155) it is argued that his method is not very practical, as the number of needle samples required for a full list of species and a reliable measure of their cover degree is extremely high. It is proposed to use the line transect method or long and narrow rectangular plots, both at right angles to the vegetation gradient. |
| Tipo: Article / Letter to the editor |
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| Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/526836 |
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| Barkman, J.J.. |
| In de 1400 ha. grote Staatsbossen ten O. van Dwingeloo was reeds geruime tijd een vindplaats van Lycopodium annotinum bekend en wel in het meest oostelijke deel, vlak bij Spier. Onlangs deelde de boswachter Fickweiler mij mee, dat er een tweede groeiplaats in deze bossen zou zijn en wel ten Z.O. van Lhee. Toen ik de nauwkeurig aangegeven plaats bezocht, bleek het evenwel een grote plek Lycopodium clavatum te zijn, rijk fructificerend in het dennenbos, wat op zichzelf merkwaardig mag heten voor deze heideplant. De heer Beijerinck, die ik hierop attent maakte, bezocht vorige week deze plek en vond toen in de buurt ook Lycopodium annotinum, L. selago en Goodyera repens. Lycopodium selago was uit deze bossen nog niet bekend, Goodyera wel, maar van een andere... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/534115 |
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| Barkman, J.J.. |
| This paper deals with the flora and vegetation of two small woods in the northern part of the prov. Drente. These woods are comparatively rich in species for the region in question, probably owing to the richer soil. Wood associations present are: Querco-Betuletum, Violo-Quercetum, Stellario-Carpinetum, Carici remotae-Fraxinetum, Pruno-Fraxinetum (not very typical), Macrophorbio-Alnetum, Irido-Alnetum, and Frangulo-Salicetum. The epiphytic vegetation is also discussed. Interesting species, many of which are very rare in this province of the Netherlands, are Salix pentandra, Adoxa moschatellina, Carex sylvatica, Circaea lutetiana, Crepis paludosa, Equisetum sylvaticum, Hypericum pulchrum, Lysimachia nemorum, Sanicula europaea, Scutellaria minor and the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1971 |
URL: http://www.repository.naturalis.nl/record/526692 |
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| Hou, Ding; Steenis, C.G.G.J. van; Lam, H.J.; Ooststroom, S.J. van; Barkman, J.J.. |
| The publication of the supplement 1 of the well known and essential reference work of “A Bibliography of Eastern Asiatic Botany” is very welcome. It is a continuation of the original work, which closed with 1936, and extends through 1958. It covers the botanical literature on eastern Asia, as indicated by the title, which comprises China, Japan, Korea, Ryukyu, Mongolia and Soviet eastern Asia, as well as the major published papers appertaining to adjacent areas. It has been prepared on essentially the same pattern as the original volume while the subject index has been treated perhaps in a more thorough manner. The volume contains over 11,000 extensively and carefully annotated entries occupying 414 pages. The work is in English but the titles, papers and... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/524871 |
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| Barkman, J.J.. |
| Sinds vier jaar geeft het Gustav Fischer Verlag in Stuttgart een botanische bibliografie uit, de Excerpta Botanica, waarvan de „Sectio B. Sociologica” onder hoofdredactie staat van professor R. Tüxen, Stolzenau, en in welks redactie voorts als Nederlanders Dr. W. C. de Leeuw en Dr. V. Westhoff zitting hebben. Het zal de lezers van Gorteria ongetwijfeld interesseren dat in deze serie nu ook een plantensociologische bibliografie van Nederland verschenen is, samengesteld door V. Westhoff [Bd. 3 (2), 1961, p. 81—160 en Bd. 3 (3), 1961, p. 161—220]. Het is een zeldzaam volledige bibliografie van 1433 titels, waarvan de waarde nog verhoogd wordt door een auteursindex (404 auteurs). Hij bestrijkt de periode 1935—1959 en sluit dus aan op de „Bibliographia... |
| Tipo: Article / Letter to the editor |
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| Ano: 1963 |
URL: http://www.repository.naturalis.nl/record/528155 |
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| Lam, H.J.; Barkman, J.J.; Ooststroom, S.J. van; Soest, J.L. van. |
| This charming and handy book printed on excellent paper, with its numerous clear pictures of well-known Malayan plants, reminds one in many ways of Merrill’s “Plant Life of the Pacific World” (MacMillan 1946, New York), which has perhaps served Prof. Holttum as an example. Its size being only slightly smaller than Merrill’s book and the area covered being very considerably smaller, its descriptions of plants are naturally more detailed; the more so as only a choice has been made, in which the special interests of the author — ferns, orchids, gingers — are evident though not predominant. The plants described are not regionally arranged. The 17 chapters are rather headed by names of life-forms, striking organs, and special habitats. As is pointed out in the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/524743 |
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| Barkman, J.J.. |
| Carex trinervis has recently been rediscovered in a locality in the province of Drente, where it was found already in 1953. The author discusses its habitat in the two localities in this province, which are the only recent natural occurrences of this species in the Netherlands outside the coastal dune area. Carex trinervis is most abundant here in open, dry, mobile sand (Corynephoretum, records no. 2262 and 2263), but it was also found in a light pine-wood on inland dunes (record no. 2791). |
| Tipo: Article / Letter to the editor |
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| Ano: 1963 |
URL: http://www.repository.naturalis.nl/record/527583 |
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| Registros recuperados: 17 | |
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