Hedwigia ciliata
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Hedwigia ciliata |
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| Scientific name | ||||||||||||
| Hedwigia ciliata | ||||||||||||
| ( Hedw. ) P.Beauv. |
Hedwigia ciliata is a deciduous moss that is not infrequently found in Central Europe on lime-free rock, where it is conspicuous due to its whitish-green color when wet. It was developed by the members of the Bryological-Lichenological Working Group for Central Europe e. V. (BLAM) voted Moss of the Year 2014.
description
The irregularly branched moss often forms extensive lawns. The stems, which can be up to 10 cm long, grow more or less upright at the shoot tips and are then up to 3 cm high.
When dry, the leaves are more or less close to the stem, when wet they are rather sparsely protruding , often a little one-sided. They are somewhat hollow, without ribs, elongated in shape, and drawn out in a translucent ( hyaline ) point at the front . This is serrated, while the rest of the leaf margin is smooth. The hyaline part of the leaf often pulls down a little on the leaf margin. It gives the moss a pale or whitish-green color when it is moist, and a gray color when it is dry.
The cells of the leaf blade are irregularly thick-walled, rounded and covered with often branched papillae in the upper part . They are longer and pitted towards the base of the leaf.
The spherical capsule is almost sessile and therefore sunk into the leaves. It does not have a peristome , but has a conical, cap-shaped kalyptra .
Distribution and location requirements
The species grows in more or less exposed places on lime-free rock, especially on silicate rock, as well as in not too sunny places on rubble heaps.
It is almost cosmopolitan . In Central Europe you can find them quite frequently in the mountains and the low mountain ranges, in the meantime less often in the lowlands.
Systematics
There are two varieties:
- var. ciliata (Hedw.) Ehrh. ex P. Beauv .: The hyaline part of the leaves only accounts for up to 33% of the leaf length. It is only papilla at the base. When dry, it is gray-white in color and does not contrast strongly with the rest of the leaf.
- var. leucophaea (Hedw.) Ehrh. ex P. Beauv .: The hyaline part of the leaves make up to 55% or 65% of the leaf length and is clearly papilous except for the tip. When dry it is pure white and forms a strong contrast to the rest of the leaf.
Recently the species Hedwigia stellata Hedenäs has been separated from this species. It differs from Hedwigia ciliata s. st. through the curved back glass hairs and the leaf cells, which have only one or two papillae (1–4 papillae in Hedwigia ciliata see str.). It seems doubtful whether the species status for H. stellata will be retained.
Sources and further information
literature
- Otto Schmeil , Jost Fitschen : Flora of Germany and its adjacent areas. A book for identifying the wild and often cultivated vascular plants. 84th, revised edition, by Werner Rauh and Karlheinz Senghas . Quelle & Meyer, Heidelberg 1968.
- Hans Martin Jahns : Ferns, mosses, lichens of Central, Northern and Western Europe (= BLV -bestungsbuch. 28). 2nd, revised edition. BLV Verlagsgesellschaft mbH, Munich et al. 1982, ISBN 3-405-11893-X .
- Ruprecht Düll : Excursion pocket book of the most important mosses in Germany. An introduction to moss science, with a special focus on the biology and ecology of mosses. For the magnification of easily recognizable species in the area. IDH-Verlag für Bryologie und Ökologie, Rheurdt 1985, ISBN 3-925425-00-4 .
- Urania plant kingdom. Volume 2: mosses, ferns, naked plants Urania-Verlag, Leipzig et al. 1992, ISBN 3-332-00495-6 .
- Wolfgang Frey , Jan-Peter Frahm , Eberhard Fischer, Wolfram Lobin : The moss and fern plants of Europe (= small cryptogam flora. 4). 6th, completely revised edition. Gustav Fischer, Stuttgart et al. 1995, ISBN 3-437-30756-8 .
Web links
Individual evidence
- ↑ Moss of the year 2014 ( Memento of the original from December 11, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. .
- ↑ Key to the Hedwigiaceae of Switzerland (PDF; 9 kB)
- ↑ Bryological Circulars No.20, 1995. ( PDF )
Silver pear moss (2005) | Spring moss (2006) | Upholstery pillow moss (2007) | Pretty Gold Hair Moss (2008) | Common white moss (2009) | Golden Women's Hair Moss (2010) | Tännchenmoos (2011) | Green Koboldmoss (2012) | Well liver moss (2013) | Hedwigia ciliata (2014) | Leuchtmoos (2015) | Sphagnum magellanicum (2016) | Soft Combed Moss (2017) | Genuine apple moss (2018) | Cryphaea heteromalla (2019)
