Wavy star moss
| Wavy star moss | ||||||||||||
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Sterile shoot of Plagiomnium undulatum |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Plagiomnium undulatum | ||||||||||||
| ( Hedw. ) T. Kop. |
Plagiomnium undulatum ( Syn. Mnium undulatum ( L. ) Hedw. ) Is a moss from the Mniaceae family . In Central Europe it is common and one of the most noticeable mosses. In English, it is sometimes called Wavy Sternmoos , Curled Sternmoos or bow Sternmoos referred.
features
These are strong plants with heights of up to 10 cm, but usually around 5 cm. The tongue-shaped leaves are about 1 cm long and 2–3 mm wide and therefore have a strikingly large leaf area for a moss. When moist they are clearly cross-corrugated. The species is dioecious ( dioecious ), d. H. there are male and female plants.
The leaves are surrounded on the edge by a border of narrowed and elongated cells, while the cells of the leaf blade are rounded to hexagonal. The leaf margin is serrated. The leaf vein extends into the tip of the leaf or emerges as a short spike tip.
With the species there is a difference in habit between the sterile and fertile stems. The sterile plants are unbranched and hang slightly overhead in an arch. The fertile plants are stiffly upright and branched at the top in rosettes or trees. The unbranched side branches then hang down in a curved manner. In the middle of the rosette sits the perichaetium , from which several sporophytes usually arise. These are reddish to yellowish. The shape of the capsule is short, cylindrical and nodding.
Habitus
Spore capsules
Leaf margin
Cells in the middle of the leaf
Spurs
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distribution
Plagiomnium undulatum occurs in the temperate areas of Eurasia . In Central Europe it is common and common everywhere.
It grows on earth in all moderately moist locations, such as on the edges of forest paths, under bushes, on shady meadows and lawns, on streams or in alder swamps. The species prefers nitrogen-rich soils, which is why it can be found in city centers. But it can also grow on poor soil.
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Hans Martin Jahns : Ferns, mosses, lichens of Central, Northern and Western Europe (= BLV -bestungsbuch. 28). 3rd, revised edition. BLV, Munich et al. 1987, ISBN 3-405-13458-7 .
