Nardia scalaris
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Nardia scalaris is a liverwort from the Jungermanniaceae family . A synonym of this species is Alicularia scalaris (Gray) Corda, German-language names are stair- shaped wing liverwort or common disc leaf moss .
description
Nardia scalaris belongs to the group of leafed liverworts. It grows in dense green to brownish, in sunny locations also reddish turf. The prostrate to upright plants are 2 to 4 centimeters long and 1 to 2 millimeters wide and have dense leaves. The two rows arranged, transversely or diagonally attached to the stem, rounded flank leaves are 1 millimeter in size. The leaf cells are around 30 to 35 µm in size in the middle of the leaf and significantly smaller on the edge of the leaf. The cell corners are triangular or thickened in knots. Each cell contains 2 to 3 large, elongated, smooth bodies of oil . The lanceolate sub-leaves are hidden between the rhizoids.
The moss is diocesan . The perianth is shorter than the bracts and hidden in them, the perianth mouth somewhat contracted. The spore capsules are oval and dark brown. The species is not infrequently fruitful, spores ripen in spring. Brood bodies are not formed.
Location requirements
Nardia scalaris is a pioneering species and grows on lime-free, moist, light-rich to slightly shaded, sandy-loamy to sandy ground and on rocks with a thin layer of soil. Preferred locations are forest paths and embankments.
distribution
The worldwide distribution of this species includes Europe, Macaronesia , Japan and North America . In Central Europe it is widespread and sometimes common in the mountains. It is one of the most common liverworts in the silicate areas. On the other hand, it is often very rare on the plain.
literature
- Jan-Peter Frahm, Wolfgang Frey, J. Döring: Moosflora . 4th edition, UTB Verlag, ISBN 3-8252-1250-5
- Ruprecht Düll, Barbara Düll-Wunder: Determine mosses easily and reliably . Quelle & Meyer Verlag Wiebelsheim, ISBN 978-3-494-01427-2
- Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 3: Special Part (Bryophyta: Sphagnopsida, Marchantiophyta, Anthocerotophyta). Ulmer, Stuttgart 2005, ISBN 3-8001-3278-8 .
