Tamarisk sack moss
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Tamarisk water sack moss ( Frullania tamarisci ) |
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| Frullania tamarisci | ||||||||||||
| ( L. ) Dumort. |
The tamarisk water sack moss ( Frullania tamarisci ) is a liverwort species from the Frullaniaceae family .
features
This form-rich species forms red-brown to copper-red, more rarely green to black-green, shiny lawns that often protrude from the substrate. The rather strong stems are twofold. The upper lobes of the two-lobed flank leaves are broadly oval and usually have an attached tip, while the lower lobes, shaped as water sacs, are about twice as long as they are wide and aligned parallel to the trunk. The leaf cells with moderately thickened corners are about 16 to 20 micrometers in size. There are 2 to 6 oval oil bodies per cell . The flank leaves often have pearl-like ocellae . Lower leaves are rounded, rectangular, twice as wide as the stem and bilobed at the tip, the edges are rolled up.
The moss is diocesan . The smooth (without warts) perianth protruding about half of the long, pointed bracts is ovoid and narrowed into a short tube. Perianthia and spore capsules are rare.
Location claims and distribution
The tamarisk water sack moss prefers moderately dry, light to partially shaded locations on more or less neutral substrates. It grows both on rock and epiphytically, mainly on the bark of hardwoods.
It is circumboreal and more or less restricted to oceanic and sub-oceanic regions.
According to information in the old literature, the species was common and much more common in Germany and Austria. A sharp decline began as early as 1900. The causes are likely to be emissions of air pollutants, drainage in the landscape and effects from forestry (promotion of spruce, decline in old wood stocks). Today in Germany the species is only found in richer populations in the south-west with more precipitation and on the edge of the Alps, in other areas it is less likely to be endangered or is already extinct. In Austria it is scattered to widespread in the Alps, otherwise rarely or completely absent.
swell
- Jan-Peter Frahm, Wolfgang Frey, J. Döring: Moosflora . 4th edition, UTB Verlag, 2004, ISBN 3-8252-1250-5
- Nebel, Philippi: Die Moose Baden-Württemberg Volume 3 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3278-8 , p. 395f
