Gymnostomum aeruginosum
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Gymnostomum aeruginosum |
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Gymnostomum aeruginosum (German Verdigris nude mouth Moss ) is a moss - kind from the family pottiaceae . A synonym is Gymnostomum rupestre Schleich .
features
The species forms brownish-green to dark-green, rust-colored below, mostly dense, cushion-shaped lawns. The individual plants are about 0.5 to 3 centimeters high, rarely higher. The cross-section of the stem shows an indistinct central cord. The linear, lanceolate to tongue-shaped, blunt or pointed, up to 1.5 centimeters long leaves are moist upright or slightly bent back, dryly curved. The leaf margins are flat or slightly curved above, often slightly serrated below. The strong leaf vein is about 45 to 70, rarely up to 100 micrometers wide at the bottom and extends to the tip of the leaf or ends just before it. The cross-section of the leaf vein shows 4 to 6 median deuter cells, two steroid bands and differentiated outer cells. The leaf cells are rectangular, transparent and smooth at the base of the leaf, roundish square, papilose and 7 to 14 micrometers in size in the upper part of the leaf.
Gymnostomum aeruginosum is diocesan . The capsule on the 4 to 8 millimeter long, upright, yellow seta is egg-shaped and upright. One peristome is missing (name). The capsule lid is conically beaked, the kalyptra cap-shaped. Spore ripening time is in late summer and autumn.
Location claims and distribution
The moss grows preferentially on mostly chalky, fresh, moist to wet rocks in shady places. Secondary locations such as embankments or old walls are also being settled.
In Central Europe it is mainly found in the low mountain ranges and in the Alps, where it penetrates up to the level of the nival. In addition, it occurs in Europe as far as the northern part of Scandinavia, south as far as the Mediterranean area. Other areas of distribution are parts of Asia, North Africa, South Africa and North and South America.
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 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 .
