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| Arnolds, E.J.M.. |
| A floristic-ecological evaluation near Utrecht in behalf of nature conservancy and urban planning An alternative method to that of MENNEMA (1973) is proposed for the evaluation of data from floristic investigations, as there are practical and fundamental objections, particularly against the ‘vegetation value’ of Mennema. The main objection lies in the differences in size and homogenity of the sociological-ecological groups of VAN DER MAAREL (1971a), which are fundamental to Mennema’s method. The author introduces the ‘indication value for nature conservancy’ for every Dutch vascular plant. Some examples are given in table 2. Fundamentally these indication value is similar to the contribution of each species to the ‘vegetation value’ of Mennema. But it is... |
| Tipo: Article / Letter to the editor |
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| Ano: 1975 |
URL: http://www.repository.naturalis.nl/record/528152 |
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| Leelavathy, K.N.; Manimohan, P.; Arnolds, E.J.M.. |
| Twenty-five species of Hygrocybe are described, illustrated and discussed, including 10 new species, namely H. globispora, H. keralensis, H. gregaria, H. griseoalbida, H. corallina, H. lobatospora, H. brunneosquamulosa, H. aurantiocephala, H. smaragdina and H. aurantioalba. Two new varieties are proposed, viz. H. nivosa var. pallidolutea and H. apala var. indica. The new combination Hygrocybe deceptiva is proposed. A key is provided for all described taxa. |
| Tipo: Article / Letter to the editor |
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| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/531960 |
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| Arnolds, E.J.M.; Noordeloos, M.E.. |
| Fourteen new species and three new variaties of Entoloma from grassland vegetations in the province of Drenthe, The Netherlands, are described: E. acidophilum, E. argenteostriatum, E. calthionis, E. chlorinosum, E. cryptocystidiatum, E. cuniculorum. E. defibulatum, E. farinogustus, E. occultopigmentatum, E. psilopus, E. tibiicystidiatum, E. undulatosporum, E. velenovskyi var. longicystidiatum, E. ventricosum, E. vinaceum var. fumosipes and var, violeipes and E. xanthocaulon. For nomenclatorial reasons one new name is introduced: E. ortonii. Short comments are given on the taxonomical position of some of these new taxa, more will follow in future publications (see References). |
| Tipo: Article / Letter to the editor |
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| Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/532024 |
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