Didymodon luridus
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Didymodon luridus |
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| Hornsch. |
Didymodon luridus ( Brownish double toothed Moss ) is a moss -Art from the family pottiaceae . Synonyms are: Barbula lurida (Hornsch.) Lindb., Barbula trifaria auct. non (Hedw.) Mitt., Didymodon trifarius auct. non (Hedw.) Röhl.
features
Didymodon luridus forms low, loose or dense, brownish green to olive or dark green lawns. The little branched stems are up to 2 centimeters in size and have a small central strand in cross section.
The leaves are moist, upright, lying dry and slightly bent. They are hollow, triangular, ovate to lanceolate, with entire margins and narrowed into the blunt or pointed tip of the leaf. The edges are bent back in the lower part of the sheet. The strong vein with short hexagonal cells on the upper side ends in or below the tip of the leaf.
The thick-walled leaf cells are short rectangular to square at the base, in the upper part of the leaf round, square, smooth or almost smooth and 6 to 10 micrometers in size.
The species is diocesan . The red seta has an elliptical to cylindrical, upright capsule with a beaked lid and short, upright peristome teeth . The smooth or almost smooth spores are 10 to 16 micrometers in size.
Location requirements
The moss grows in light to partially shaded, calcareous locations on earth or rock, for example in dry, warm, shallow places in dry grass, on embankments and roadsides, in quarries, gravel and clay pits. It also often colonizes the crowns and joints of walls. It can also be found on slightly fresh to moderately moist river banks on the trunk base or exposed tree roots of deciduous trees.
distribution
In Germany, Austria and Switzerland, the main areas of distribution are the flat and hilly areas as well as the large river valleys.
The moss is a warmth-loving, sub-Mediterranean flora element and is particularly widespread in Europe in the southern, western and central parts. The northern limit of distribution is in Ireland, Scotland and southern Sweden, to the east it still occurs in the Caucasus. There are other occurrences in Southwest, Central, Northeast and East Asia, in Macaronesia , in North Africa and tropical Africa as well as in North and Central America.
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 , p. 284.
- Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 , p. 315 f.
Web links
- Didymodon luridus in moose-deutschland.de