Atrichum
| Atrichum | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
_4457.jpg)
Atrichum undulatum |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Atrichum | ||||||||||||
| P.Beauv. |
Atrichum ,called Katharinenmoose in German, is a genus of deciduous moss from the family Polytrichaceae . The name Atrichum is derived from the Greek a = negation and trichos = hair and refers to the bald kalyptra . The German name Katharinenmoos goes back to the earliergenus namefrom Ehrhart , who named this genus in honor of the Russian Tsarina Katharina II Catharinea . Atrichum species are common in Europe, Asia, America, Africa and Australia.
features
The mostly strong plants with simple or rarely branched stems form loose lawns. The leaves are oblong-ovate to lanceolate and fringed and serrated on the edges with elongated narrow cells. The leaves are bent when dry, and often wavy when wet. The leaf vein extends to the tip of the leaf and is usually covered with up to nine upright, longitudinal lamellae. The egg-shaped to cylindrical spore capsule has 32 peristome teeth and a long beaked lid.
Systematics and types (selection)
According to Stech & Frey, 20 species belong to the genus Atrichum worldwide . The following four types are represented in Germany, Austria and Switzerland:
Web links
swell
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Wolfgang Frey, Michael Stech, Eberhard Fischer: Bryophytes and Seedless Vascular Plants (= Syllabus of Plant Families. 3). 13th edition. Borntraeger, Berlin et al. 2009, ISBN 978-3-443-01063-8 .
- 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 .