Aulacomnium palustre
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Aulacomnium palustre |
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| Aulacomnium palustre | ||||||||||||
| ( Hedw. ) Schwägr. |
The dioecious ( dioecious ) deciduous moss Aulacomnium palustre , also called swamp-striped star moss, is a lime-avoiding moss of the intermediate and fens .
features
The lawn-like growing Aulacomnium palustre forms up to 10 cm large, yellowish green to fresh green colored plants. A brown root felt ( rhizoid felt ), which serves to protect the capillary water pipe from drying out, usually extends into the upper areas of the plant. The leaves, which stick out upright when wet, but twisted when dry, are narrow tongue-shaped and can be up to 5 mm long. The leaf margin is sawn in the upper half . The oval-round lamina cells are about 14 to 20 µm long and 7 to 13 µm wide. Approximately 2 to 5 nipple-like protuberances of the cells are supposed to facilitate the passage of nutrients by increasing the surface area. At the base of the leaf, the lamina is multilayered and the cells are clearly elongated. Sporogons are extremely rarely formed. Similar to Aulacomnium androgynum , A. palustre can also develop vegetative brood bodies ( pseudopodia ), but this happens much less frequently.
Distribution and location
Aulacomnium palustre grows in weakly acidic and lime-free bogs, fens, swamps , wet heaths and wet meadows . It prefers sunny to partially shaded, little to moderately nutrient-rich locations. It often grows next to peat moss ( sphagnum ), not infrequently also on tree bases (e.g. from bog birch trees ) or less often in fresh to moist, loamy locations outside of bogs. In the boreal and temperate latitudes, it is found almost worldwide. However, it is on the decline due to the drainage of wetlands and eutrophication. In some federal states it is therefore included in the warning lists of the Red Lists of Endangered Mosses.
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 2: Special part, (Bryophytina II, Schistostegales to Hypnobryales). Ulmer, Stuttgart 2001, ISBN 3-8001-3530-2 .
- Volkmar Wirth , Ruprecht Düll : Color Atlas of Lichen and Moss. Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3517-5 .
