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| Gradstein, S.R.; Melick, H. van. |
| First record of Bryum gemmiparum de Not. from The Netherlands. The taxonomy and distribution of the species are discussed. Bryum gemmiparum was collected in a clay-pit along the river Maas in the north of the province of Limburg. This locality seems to be the northernmost one known of the species. Bryum gemmiparum was found growing on steep, rather humid, loamy soils in a luxuriant cover of bryophytes characterized by Anisothecium varium, Riccardia sinuata, Riccardia pinguis, Bryum bicolor, Didymodon tophaceus, and Mniobryum wahlenbergii. A floristical and ecological investigation of this highly interesting bryophyte vegetation in The Netherlands is needed. |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/535128 |
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| Melick, H. van; During, H.J.. |
| Some details are given on the bryophyte vegetation in an old clay pit near Venlo. Due to burrowing activities, the bottom of the pit has a very broken surface, and in the upper soil layer sand, sandy clay and pure clay (from the Tiglien formation) replace each other. On some places water comes out of the soil. Some locally important bryophyte unions (in the sense of Barkman 1973) are described. An impoverished form of the Haplomitrium- Fossombronia incurva union occurs on moist sandy ground. On a steep, south-exposed, dry clay edge a fragment of the Aloinetum rigidae was found. The wet clayey parts are occupied by a vegetation mainly consisting of Leiocolea badensis and Anisothecium varium, for which a new union is proposed, the Leiocolea badensis-... |
| Tipo: Article / Letter to the editor |
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| Ano: 1976 |
URL: http://www.repository.naturalis.nl/record/534734 |
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