Pohlia proligera
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Pohlia proligera |
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| ( Breidl. ) Arnell |
Pohlia proligera (German breeding-forming Pohl Moss ) is a moss - kind from the family Mniaceae . Webera proligera Breidl is a synonym.
features
The moss grows in flocks or in loose to dense lawns. The upright plants are up to 2.5 centimeters high, rarely higher, yellowish green to blue-green and have a dry metallic sheen. The lanceolate leaves, which run down slightly on the stem, stand upright when dry and spread when wet. The leaf margins are flat or bent back at the top, with entire margins at the bottom and toothed at the top. The lamina cells in the middle of the leaf are elongated rhombic to linearly rectangular, 6 to 9 (rarely up to 11) micrometers wide and thin-walled. At the edge there is usually a row with narrower and longer cells. At the base of the leaf they are shorter and wider than those in the middle of the leaf.
The species is diocesan . The seta is up to 3 centimeters long and orange to reddish. The spore capsule elongates pear-shaped and horizontally to nodding, the capsule neck is clearly developed. The outer peristome is yellow and papillary, the inner hyaline and finely papilous. Spores are 15 to 23 micrometers in size and papillary.
Pohlia proligera is one of several Pohlia species with bulbils ( brood bodies ) in the leaf axils. These are located in large numbers in the upper leaf axils of sterile plants. They are 150 to 500 micrometers long and up to 60 micrometers wide.
Location claims and distribution
The moss grows on acidic, but also base-rich, rather dry, nutrient-rich soil in sunny to shaded places, such as on embankments, on forest roads, in crevices or wall joints, in sand pits or quarries. The main areas of distribution in Europe are the north and, in Central Europe, the montane elevation of the mountains. It is scattered in the Central Alps, otherwise it is rare. There are other occurrences in 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 .
