Green-stemmed striped fern
| Green-stemmed striped fern | ||||||||||||
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Green-stemmed striped fern |
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| Asplenium viride | ||||||||||||
| Huds. |
The Grünstielige Spleenwort or Green Spleenwort ( Asplenium viride ) is a fern - type , which, apart from the green stem, the Braunstieligen Spleenwort ( Asplenium trichomanes ) is very similar.
description
The narrow lanceolate fronds of this perennial fern are between 5 and 20 cm long, but mostly about 10 cm. They are simply feathered throughout. The frond axis is green, and at most brown at the bottom. The up to 30 round to broadly ovate leaflets are flat and arranged on one level.
The spores ripen in July or August.
The number of chromosomes is 2n = 72.
Occurrence
The species is distributed throughout the northern hemisphere in the moderate latitudes (meridional to arctic zone).
It grows in shady and not too dry locations in crevices in limestone rocks or in cracks in calcareous walls. In Central Europe it is quite common in the limestone areas of the Alps and the Alpine foothills. Otherwise it occurs only very sporadically and rarely. In the Allgäu Alps, the species on the Bockkarkopf in Bavaria rises up to 2450 m above sea level. The green-stemmed striped fern is a species of the Cystopteridion association, but also occurs in stony societies of the Tilio-Acerion or Piceion association.
literature
- Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (= The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
- Rudolf Schubert , Klaus Werner, Hermann Meusel (eds.): Excursion flora for the areas of the GDR and the FRG . Founded by Werner Rothmaler. 14th edition. tape 2 : vascular plants . People and knowledge, Berlin 1988, ISBN 3-06-012539-2 .
Individual evidence
- ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 77 .
- ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , p. 84.
Web links
- Green-stemmed striped fern. In: FloraWeb.de.
- Green-stemmed striped fern . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
- Asplenium viride Huds. In: Info Flora , the national data and information center for Swiss flora .
- Distribution in the northern hemisphere from: Eric Hultén, Magnus Fries: Atlas of North European vascular plants. 1986, ISBN 3-87429-263-0 at Den virtuella floran (swed.)
- Thomas Meyer: Stripe fern data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
