White short rifle moss
| White short rifle moss | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
White short rifle moss ( Brachythecium albicans ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Brachythecium albicans | ||||||||||||
| ( Hedw. ) Chimp. |
The White Short Box Moss ( Brachythecium albicans ) is a deciduous moss within the Brachytheciaceae family .
features
The white short rifle moss grows in loose lawns with whitish-green colored, slender plants. The trunks and branches are leafy even when they are moist and therefore appear like a string or a thread. The stems grow ascending or creeping and are irregularly branched. They only form a few rhizoids . The branches are 0.5 to 1.5 cm long and have few branches. The densely packed, egg-shaped leaves, suddenly drawn out into a long, fine, but not twisted tip, lie like a roof tile on the shoot both when dry, dry and when wet. At the base of the leaf they run down the stem. Often they have one or more folds not far from the leaf margin. The leaf margins are entire, or rarely finely sawn at the tip. The stem leaves are up to 2.8 mm long, the branch leaves up to 2 mm long. The linear lamina cells are prosenchymatic and are 40 to 80 µm long and 6 to 10 µm wide. At the base of the leaf these are expanded and rhombic in shape. The leaf wing cells form an oval, basal group. They are square to rectangular.
The moss rarely fruit. A Sporenreife occurs mostly in winter. The smooth, red-brown colored seta becomes 12 to 20 mm long. The somewhat curved, cylindrically shaped capsules are inclined or horizontal and are up to 2 mm long.
Distribution and location
The moss has a circumbo-real distribution area, the borders of which are in the north the Arctic , in the south North Africa, in the east south-western parts of Asia and in the west North America. It was introduced by humans in Australia and New Zealand .
The white short rifle moss is a diocesan , weak competitive, pioneering moss in sunny, dry, warm, moderately acidic, base-rich, also calcareous, moderately nutrient-rich locations. It primarily colonizes open-ground sand areas and grows on sand, earth, humus , limestone, gypsum or rock translated with humus. It is especially common in lower altitudes. It originally occurs here at pioneering locations, but today it is also often found on roadsides, on fallow land and in patchy lawn communities. Typical accompanying mosses are Tortula ruralis , Ceratodon purpureus , Hypnum cupressiforme sl, Bryum bicolor sl and Rhytidiadelphus squarrosus .
literature
- 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 .
- Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
