Rhytidiadelphus loreus
| Rhytidiadelphus loreus | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
_3644.JPG)
Rhytidiadelphus loreus |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Rhytidiadelphus loreus | ||||||||||||
| ( Hedw. ) Warnst. |
Rhytidiadelphus loreus is a pleurocarpic moss from the Hylocomiaceae family . German-language names are Schöner Wrzelbruder , Schöner Wrzelpeter , Schöne Kranzmoos or Riemenstengel-Kranzmoos .
features
Rhytidiadelphus loreus is one of the attractive representatives of the Central European moss flora. This species forms loose, often extensive, olive-green to brownish-green and somewhat glossy lawns with up to 20 centimeters long, single or multiply forked and irregularly pinnately branched stems. The branches are simple and protruding, often extended like runners. The trunks and branches are densely leafed. The stem leaves are crescent-shaped, one-sided, sparsely protruding to curved back, drawn out from the broad, egg-shaped, deeply longitudinally folded leaf base into a long and narrow tip, 4 millimeters long and have clearly serrated leaf margins. The leaf vein is short and double, often it is completely absent. Branch leaves are less sickle-shaped and somewhat narrower and smaller.
The leaf cells are linear, thick-walled, spotted and rounded at the ends, about 7 µm wide and 10 to 15 times as long. At the base of the leaf, the cells are orange, slightly wider and more dotted. Leaf-wing cells are not particularly differentiated.
The diocesan moss occasionally produces fruit. The sporophyte develops a 2 to 4 centimeter long, purple seta with a spherical to short ovoid, 2 to 2.4 millimeter long capsule. The capsule lid is approximately hemispherical and has a little point. Spore ripening time is in winter.
Distribution and location requirements
The calcareous moss grows on acidic humus, raw humus or peat in moist, shady locations, especially in coniferous forests.
The European distribution has its focus in the north-western parts, in Norway it extends beyond the Arctic Circle. In Central and Southern Europe, the occurrences are mainly limited to the montane areas of the mountains. To the east there are deposits as far as the Carpathian Mountains. The moss is also found in the Faroe Islands, Iceland, Greenland, the Azores and Madeira as well as in North America.
literature
- Ruprecht Düll , Barbara Düll-Wunder: Determine mosses easily and reliably. An illustrated excursion guide to the types of Germany and neighboring countries. Quelle & Meyer, Wiebelsheim 2008, ISBN 978-3-494-01427-2 .
- 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 .
