Alpine flat bear moss
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Alpine flat bear moss ( Diphasiastrum alpinum ) |
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| Diphasiastrum alpinum | ||||||||||||
| ( L. ) Holub |
The alpine flat bear moss ( Diphasiastrum alpinum (L.) Holub , syn .: Lycopodium alpinum L. ) belongs to the genus flat bear moss within the bear moss family .
description
The Alpen-Flachbärlapp is a Chamaephyte , its above-ground, sterile shoots are square, usually not flattened (but somewhat flattened in shady locations). The ventral leaves are clearly stalked and kneeled and 0.5 mm wide. The dorsal and ventral leaves are the same size. The sporophyll stand is sessile, the sporophyll lanceolate, pointed. The whole plant is covered in blue-green.
The spore ripeness extends from August to September.
The chromosome number of the species is 2n = 44, 46 or approx. 48.
General distribution
The Alpen-Flachbärlapp is a boreal-alpine species (also boreal-temperat montan alpine). Its main area of distribution is in the northern hemisphere: Central Europe, the Alps, the Carpathian Mountains, the Pyrenees, especially northern Europe (to northern Scandinavia) and North America. Occasionally it can also be found in the mountains of the Balkan Peninsula and in the low mountain ranges of Central Europe. It is rare in Finland and northern Russia. It is absent in the Mediterranean region.
In the Allgäu Alps, it rises in the Tyrolean part on the Rothornspitze up to 2300 m above sea level.
Locations
The Alpine flat bear moss grows in loose groups in light-rich to weakly shaded, moderately fresh, lime-poor, acidic, often somewhat humus-rich areas on (sandy) loamy soils, mostly in long snow-covered locations (snow cover often until May-June), preferably in open, low-vegetation, but places rich in moss, often on embankments. Obviously it is a weak competitive species. Its natural occurrences are in dwarf shrub-rich nebulas of the high altitudes (Leontodo-Nardetum), regionally it is also a Nardion species.
Specialty
The very scattered occurrences in Central Europe are interpreted as a glacial relic.
literature
- Otto Schmeil , Jost Fitschen (greeting), Siegmund Seybold: The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants. 95th completely revised u. exp. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
- Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg. Volume 1: General Part, Special Part (Pteridophyta, Spermatophyta): Lycopodiaceae to Plumbaginaceae. 2nd, supplemented edition. Eugen Ulmer, Stuttgart 1993, ISBN 3-8001-3322-9 .
- The Große Bertelsmann Lexikothek, European Natural Encyclopedia, Volume 10, Mushrooms and Lower Plants: Editor Josef Reichholf, Gunter Steinbach, Mosaik-Verlag, 1992, ISBN 3-577-10110-5
Individual evidence
- ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Stuttgart, Verlag Eugen Ulmer, 2001. Page 67. ISBN 3-8001-3131-5
- ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , pp. 97-99.
Web links
- Diphasiastrum alpinum (L.) Holub, Alpen-Flachbärlapp. In: FloraWeb.de.
- Alpine flat bear moss . 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 .
- Diphasiastrum alpinum (L.) Holub, map for distribution in Switzerland In: Info Flora , the national data and information center for Swiss flora .
- Distribution in the northern hemisphere
- Thomas Meyer: Flachbärlapp data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
Photos: