Mannia
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Mannia ( Grimaldimoose ) is a genus of liverworts from the Aytoniaceae family .
Generic name
The generic name refers to WB Mann (1799–1839), a German doctor and lichenologist. A synonym is Grimaldia Raddi.
features
The plants are rather small with about 1 to 3 centimeters long and 1.5 to 4 millimeters wide, forked or heart-shaped lobed thalli . The respiratory openings are surrounded by one to three circles of 5 to 8 cells each. The belly scales end with one to three narrow points. The supports of the archegonia stands arise from the Thallusspitzen, have a longitudinal furrow and are often covered with scales at the base and at the top. The hemispherical archegonia stands are warty on top and contain 2 to 4 sporogons. Each spore capsule opens by shedding the top of the capsule wall as a whole.
The mosses colonize crevices or stony ground and occur mainly in areas with a Mediterranean climate , but also in arctic regions.
Systematics and types
The genus counts 16 species worldwide. The following species are represented in Germany, Austria and Switzerland:
- Mannia androgyna
- Mannia controversa
- Mannia fragrans
- Mannia pilosa
- Mannia triandra (three-man dwarf moss)
literature
- Jan-Peter Frahm, Wolfgang Frey, J. Döring: Moosflora . 4th edition, UTB Verlag, 2004, ISBN 3-8252-1250-5 .
- Nebel, Philippi: Die Moose Baden-Württemberg Volume 3 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3278-8 .
- Wolfgang Frey, Eberhard Fischer, Michael Stech: Bryophytes and seedless Vascular Plants . In: Wolfgang Frey (Ed.): Syllabus of Plant Families - A. Engler's Syllabus of Plant Families . 13th edition. Vol. 3, Borntraeger, Berlin / Stuttgart 2009, ISBN 978-3-443-01063-8 .
Individual evidence
- ↑ Mannia triandra (Scop.) Grolle. (No longer available online.) Federal Agency for Nature Conservation, April 4, 2008, archived from the original on July 14, 2014 ; Retrieved July 6, 2014 . 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.
