Cypress flat bear moss
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Cypress flat bear moss ( Diphasiastrum tristachyum ) |
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| ( Pursh ) Holub |
The cypress flat bear moss ( Diphasiastrum tristachyum (Pursh) Holub ; syn .: Lycopodium tristachyum Pursh , Lycopodium chamaecyparissus A. Braun ex Mutel ; Diphasium tristachyum (Pursh) Rothm. ) Belongs to the genus of the flat bear moss ( Diphasiastrum ).
description
Persistent Chamaephyte , above-ground shoots round to square, densely tufted, dark green, frosted on the underside, similar to pseudo cypress. Belly and flank leaves designed in the same way. Sporophyll stand 3 to 12 cm long. Sporophylls drawn out in long tips. Chlorophyll-free main shoot 3 to 15 cm deep, underground.
The number of chromosomes is 2n = 46.
Locations
The cypress flat bear thrives in dry, sparse coniferous forests and on heaths; it likes fresh or alternately moist, low-base, acidic, peaty-humic, sandy soils, especially over red sandstone or granite. According to Ellenberg , it is a light plant, a freshness indicator and a strong acid indicator that grows in locations with the lowest nitrogen levels. He is a federation character of the Gorse-Heidestrauch-Heiden (Genisto-Callunion).
distribution
The cypress flat bear found in Europe, Turkey and North America. But it is missing in Europe in Great Britain and on the Iberian Peninsula.
Hazard / protection
The cypress flat bear is endangered in Germany (category 2) and is under nature protection.
literature
Diphasiastrum tristachyum. In: FloraWeb.de.
Individual evidence
- ^ 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. 66-67 .
Web links
- Cypress 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 tristachyum (Pursh) 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 )
- Description (PDF file; 725 kB)
