Hypnum lindbergii
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Hypnum lindbergii |
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Hypnum lindbergii is a pleurocarpes deciduous moss from the Hypnaceae family , which is named after the Swedish-Finnish bryologist Sextus Otto Lindberg (1835–1889). German names are Krümmtes Schlafmoos or Lindbergs Schlafmoos .
features
This type of moss forms yellow-green to brownish-green, loose and shiny lawns with up to 10 centimeters large, sparsely or irregularly branched, prostrate to upright plants. The ends of the trunks and branches are curved in hooks. The sickle-shaped, one-sided curved, broadly ovate-lanceolate leaves are up to 2.5 millimeters long, hollow, flat-edged and fairly short and broadly pointed. The leaf veins are short and double, often they are only very weak. Branch leaves are narrower and longer pointed.
The lamina cells are narrow, linear-worm-shaped in the middle of the leaf, 5 to 7 µm wide and 10 to 16 times as long, in the leaf tip shorter and around 2 to 4 times as long as wide, on the leaf base oval to elongated, thick-walled and heavily spotted. The numerous leaf wing cells are inflated, hyaline, thin-walled and form a rounded group that is well demarcated from the leaf cells above. The trunk cross-section has a central cord, the epidermal cells (outer cortical layer) are hyaline and larger than the underlying cells.
The sporophytes have a 2.5 to 4 centimeter long, smooth and reddish seta , an inclined to horizontal, curved and elongated egg-shaped capsule with a conical and beaked lid. The moss is diocesan . It is very rarely fruitful.
Distribution and location requirements
Hypnum lindbergii is common in the temperate, arctic and alpine areas of Europe, Asia and North America. In Central Europe it occurs mainly in the mountains, it is rare on the plains.
It demands fresh to moist, shady to light-rich, lime or alkaline locations and grows on loamy to sandy soil at the edges of forests , on forest roads, in gravel pits, fen meadows , ditches and bodies of water in the bank area; only rarely does it colonize rotten wood.
literature
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
- Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 2: Special part, (Bryophytina II, Schistostegales to Hypnobryales). Ulmer, Stuttgart 2001, ISBN 3-8001-3530-2 .
