Dull-lobed double-leaf moss
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Blunt-lobed double-leaf moss ( Diplophyllum obtusifolium ) |
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| Diplophyllum obtusifolium | ||||||||||||
| ( Hook. ) Dumort. |
The dull-lobed double-leaf moss ( Diplophyllum obtusifolium ) is a liverwort species from the Scapaniaceae family .
features
The moss forms reddish-green to brown lawns. The prostrate or ascending plants are up to 1 centimeter long and 2 millimeters wide and densely covered with rhizoids. The leaves are bilobed, the smaller upper lobe directed obliquely forward, the two to three times as long lower lobe protruding at right angles from the stem. Both lobes are tongue-shaped and serrated away notched.
The somewhat coarse-walled leaf cells are of different sizes: roundish-square and 10 µm in size at the tip of the leaf, larger in the middle of the leaf, around 12 by 40 µm. In contrast to the light-streaked double-leaf moss , the species described here does not have a sharply demarcated rib-like central stripe of the leaf lobes.
Brood bodies are very rare, but perianthia are usually present, half of them protrude from the bracts, are ovoid, folded, contracted at the mouth and covered with ciliate teeth. The moss is monoecious .
distribution
The moss is common in the northern hemisphere. In Europe it occurs mainly in the mountains; it is absent in the northernmost parts and in the Mediterranean area. Other occurrences are known from parts of East Asia and western North America as well as Greenland.
Location requirements
The moss grows on lime-free moist soil and on moist sandy soil in shady places. Often the places of growth are on embankments of paths or forest roads.
literature
- Jan-Peter Frahm , Wolfgang Frey , J. Döring: Moosflora . 4th edition, UTB für Wissenschaft, Ulmer, Stuttgart 2004, p. 106. ISBN 3-8252-1250-5
- Nebel, Philippi: Die Moose Baden-Württemberg Volume 3 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3278-8
