Pohlia filum
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Pohlia filum |
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| ( Chimp ) Mårtensson |
Pohlia filum (German thread Pohl Moss ) is a moss - kind from the family Mniaceae .
features
The species forms 0.5 to 1.5 (rarely up to 6) centimeters high, loose to moderately dense lawns or herds. The upright stems are yellow-green, reddish to black with age. The leaves are lanceolate, close-fitting or, more rarely, protruding, broadly and long on the stem, keeled, somewhat hollow, with flat margins or slightly rolled up at the base and with entire to slightly and bluntly toothed edges. The lamina cells are rectangular to rhombic, about 6 to 11 micrometers wide and thin-walled. At the edge they are hardly narrower, at the leaf base they are rectangular and slightly wider.
The moss is diocesan . The seta, which is up to 3 centimeters long, is orange to reddish, the spore capsule pear-shaped or egg-shaped and horizontal to nodding. The neck of the capsule is usually short. The capsule lid is conical and often provided with a small point. The outer peristome is yellowish, the inner hyaline . Spores are 13 to 21 micrometers in size and finely papilous.
Pohlia filum is one of several Pohlia species with bulbils ( brood bodies ) in the leaf axils. These are usually found individually in the upper leaf axils of sterile plants. They are 0.3 to 0.6 millimeters in size, elliptical to rounded egg-shaped, yellowish when young, later often blackish. At its tip there are 3 to 6 short, triangular, upright leaf bases.
Location claims and distribution
The species grows in locations with little lime, rich in light, moist to wet, poor in humus, fine sandy to muddy, only moderately nutrient-rich locations. At higher altitudes it can be found especially on alluvial sand corridors, snow valleys or on forest roads.
The occurrences in Germany, Austria and Switzerland are mostly limited to the higher mountain areas. In addition to the European ones, there are deposits in parts of Asia, North America and Greenland.
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 .
